diff --git a/build-scripts/install-sh b/build-scripts/install-sh
index ec298b5374..1d8d966964 100755
--- a/build-scripts/install-sh
+++ b/build-scripts/install-sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # install - install a program, script, or datafile
 
-scriptversion=2020-11-14.01; # UTC
+scriptversion=2025-06-18.21; # UTC
 
 # This originates from X11R5 (mit/util/scripts/install.sh), which was
 # later released in X11R6 (xc/config/util/install.sh) with the
@@ -124,9 +124,9 @@ it's up to you to specify -f if you want it.
 
 If -S is not specified, no backups are attempted.
 
-Email bug reports to bug-automake@gnu.org.
-Automake home page: https://www.gnu.org/software/automake/
-"
+Report bugs to <bug-automake@gnu.org>.
+GNU Automake home page: <https://www.gnu.org/software/automake/>.
+General help using GNU software: <https://www.gnu.org/gethelp/>."
 
 while test $# -ne 0; do
   case $1 in
@@ -170,7 +170,7 @@ while test $# -ne 0; do
 
     -T) is_target_a_directory=never;;
 
-    --version) echo "$0 $scriptversion"; exit $?;;
+    --version) echo "$0 (GNU Automake) $scriptversion"; exit $?;;
 
     --) shift
         break;;
@@ -345,7 +345,7 @@ do
 	' 0
 
 	# Because "mkdir -p" follows existing symlinks and we likely work
-	# directly in world-writeable /tmp, make sure that the '$tmpdir'
+	# directly in world-writable /tmp, make sure that the '$tmpdir'
 	# directory is successfully created first before we actually test
 	# 'mkdir -p'.
 	if (umask $mkdir_umask &&
@@ -353,7 +353,7 @@ do
 	    exec $mkdirprog $mkdir_mode -p -- "$tmpdir/a/b") >/dev/null 2>&1
 	then
 	  if test -z "$dir_arg" || {
-	       # Check for POSIX incompatibilities with -m.
+	       # Check for POSIX incompatibility with -m.
 	       # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
 	       # other-writable bit of parent directory when it shouldn't.
 	       # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
@@ -533,9 +533,9 @@ do
 done
 
 # Local variables:
-# eval: (add-hook 'before-save-hook 'time-stamp)
+# eval: (add-hook 'before-save-hook 'time-stamp nil t)
 # time-stamp-start: "scriptversion="
-# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-format: "%Y-%02m-%02d.%02H"
 # time-stamp-time-zone: "UTC0"
 # time-stamp-end: "; # UTC"
 # End:
diff --git a/build-scripts/mkinstalldirs b/build-scripts/mkinstalldirs
index c364f3d5e1..498a641d25 100755
--- a/build-scripts/mkinstalldirs
+++ b/build-scripts/mkinstalldirs
@@ -1,7 +1,7 @@
 #! /bin/sh
 # mkinstalldirs --- make directory hierarchy
 
-scriptversion=2020-07-26.22; # UTC
+scriptversion=2025-06-18.21; # UTC
 
 # Original author: Noah Friedman <friedman@prep.ai.mit.edu>
 # Created: 1993-05-16
@@ -23,7 +23,9 @@ Usage: mkinstalldirs [-h] [--help] [--version] [-m MODE] DIR ...
 Create each directory DIR (with mode MODE, if specified), including all
 leading file name components.
 
-Report bugs to <bug-automake@gnu.org>."
+Report bugs to <bug-automake@gnu.org>.
+GNU Automake home page: <https://www.gnu.org/software/automake/>.
+General help using GNU software: <https://www.gnu.org/gethelp/>."
 
 # process command line arguments
 while test $# -gt 0 ; do
@@ -39,7 +41,7 @@ while test $# -gt 0 ; do
       shift
       ;;
     --version)
-      echo "$0 $scriptversion"
+      echo "$0 (GNU Automake) $scriptversion"
       exit $?
       ;;
     --)                         # stop option processing
@@ -154,9 +156,9 @@ exit $errstatus
 # Local Variables:
 # mode: shell-script
 # sh-indentation: 2
-# eval: (add-hook 'before-save-hook 'time-stamp)
+# eval: (add-hook 'before-save-hook 'time-stamp nil t)
 # time-stamp-start: "scriptversion="
-# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-format: "%Y-%02m-%02d.%02H"
 # time-stamp-time-zone: "UTC0"
 # time-stamp-end: "; # UTC"
 # End:
diff --git a/configure b/configure
index eb0a5a875b..b610f00177 100755
--- a/configure
+++ b/configure
@@ -1,9 +1,9 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.71.
+# Generated by GNU Autoconf 2.73.
 #
 #
-# Copyright (C) 1992-1996, 1998-2017, 2020-2021 Free Software Foundation,
+# Copyright (C) 1992-1996, 1998-2017, 2020-2026 Free Software Foundation,
 # Inc.
 #
 #
@@ -15,21 +15,21 @@
 
 # Be more Bourne compatible
 DUALCASE=1; export DUALCASE # for MKS sh
-as_nop=:
 if test ${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
 then :
   emulate sh
   NULLCMD=:
   # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
-  # is contrary to our usage.  Disable this feature.
+  # contradicts POSIX and common usage.  Disable this.
   alias -g '${1+"$@"}'='"$@"'
   setopt NO_GLOB_SUBST
-else $as_nop
-  case `(set -o) 2>/dev/null` in #(
+else case e in #(
+  e) case `(set -o) 2>/dev/null` in #(
   *posix*) :
     set -o posix ;; #(
   *) :
      ;;
+esac ;;
 esac
 fi
 
@@ -101,13 +101,13 @@ IFS=$as_save_IFS
 
      ;;
 esac
-# We did not find ourselves, most probably we were run as `sh COMMAND'
+# We did not find ourselves, most probably we were run as 'sh COMMAND'
 # in which case we are not to be found in the path.
 if test "x$as_myself" = x; then
   as_myself=$0
 fi
 if test ! -f "$as_myself"; then
-  printf "%s\n" "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  printf '%s\n' "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
   exit 1
 fi
 
@@ -129,30 +129,33 @@ case $- in # ((((
   *x* ) as_opts=-x ;;
   * ) as_opts= ;;
 esac
-exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+case $# in # ((
+  0) exec $CONFIG_SHELL $as_opts "$as_myself" ;;
+  *) exec $CONFIG_SHELL $as_opts "$as_myself" "$@" ;;
+esac
 # Admittedly, this is quite paranoid, since all the known shells bail
-# out after a failed `exec'.
-printf "%s\n" "$0: could not re-execute with $CONFIG_SHELL" >&2
+# out after a failed 'exec'.
+printf '%s\n' "$0: could not re-execute with $CONFIG_SHELL" >&2
 exit 255
   fi
   # We don't want this to propagate to other subprocesses.
           { _as_can_reexec=; unset _as_can_reexec;}
 if test "x$CONFIG_SHELL" = x; then
-  as_bourne_compatible="as_nop=:
-if test \${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
+  as_bourne_compatible="if test \${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
 then :
   emulate sh
   NULLCMD=:
   # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
-  # is contrary to our usage.  Disable this feature.
+  # contradicts POSIX and common usage.  Disable this.
   alias -g '\${1+\"\$@\"}'='\"\$@\"'
   setopt NO_GLOB_SUBST
-else \$as_nop
-  case \`(set -o) 2>/dev/null\` in #(
+else case e in #(
+  e) case \`(set -o) 2>/dev/null\` in #(
   *posix*) :
     set -o posix ;; #(
   *) :
      ;;
+esac ;;
 esac
 fi
 "
@@ -170,8 +173,9 @@ as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
 if ( set x; as_fn_ret_success y && test x = \"\$1\" )
 then :
 
-else \$as_nop
-  exitcode=1; echo positional parameters were not saved.
+else case e in #(
+  e) exitcode=1; echo positional parameters were not saved. ;;
+esac
 fi
 test x\$exitcode = x0 || exit 1
 blah=\$(echo \$(echo blah))
@@ -193,14 +197,15 @@ test \$(( 1 + 1 )) = 2 || exit 1"
   if (eval "$as_required") 2>/dev/null
 then :
   as_have_required=yes
-else $as_nop
-  as_have_required=no
+else case e in #(
+  e) as_have_required=no ;;
+esac
 fi
   if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null
 then :
 
-else $as_nop
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+else case e in #(
+  e) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 as_found=false
 for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
 do
@@ -233,12 +238,13 @@ IFS=$as_save_IFS
 if $as_found
 then :
 
-else $as_nop
-  if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
+else case e in #(
+  e) if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
 	      as_run=a "$SHELL" -c "$as_bourne_compatible""$as_required" 2>/dev/null
 then :
   CONFIG_SHELL=$SHELL as_have_required=yes
-fi
+fi ;;
+esac
 fi
 
 
@@ -258,28 +264,32 @@ case $- in # ((((
   *x* ) as_opts=-x ;;
   * ) as_opts= ;;
 esac
-exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+case $# in # ((
+  0) exec $CONFIG_SHELL $as_opts "$as_myself" ;;
+  *) exec $CONFIG_SHELL $as_opts "$as_myself" "$@" ;;
+esac
 # Admittedly, this is quite paranoid, since all the known shells bail
-# out after a failed `exec'.
-printf "%s\n" "$0: could not re-execute with $CONFIG_SHELL" >&2
+# out after a failed 'exec'.
+printf '%s\n' "$0: could not re-execute with $CONFIG_SHELL" >&2
 exit 255
 fi
 
     if test x$as_have_required = xno
 then :
-  printf "%s\n" "$0: This script requires a shell more modern than all"
-  printf "%s\n" "$0: the shells that I found on your system."
+  printf '%s\n' "$0: This script requires a shell more modern than all"
+  printf '%s\n' "$0: the shells that I found on your system."
   if test ${ZSH_VERSION+y} ; then
-    printf "%s\n" "$0: In particular, zsh $ZSH_VERSION has bugs and should"
-    printf "%s\n" "$0: be upgraded to zsh 4.3.4 or later."
+    printf '%s\n' "$0: In particular, zsh $ZSH_VERSION has bugs and should"
+    printf '%s\n' "$0: be upgraded to zsh 4.3.4 or later."
   else
-    printf "%s\n" "$0: Please tell bug-autoconf@gnu.org about your system,
+    printf '%s\n' "$0: Please tell bug-autoconf@gnu.org about your system,
 $0: including any error possibly output before this
 $0: message. Then install a modern shell, or manually run
 $0: the script under such a shell if you do have one."
   fi
   exit 1
-fi
+fi ;;
+esac
 fi
 fi
 SHELL=${CONFIG_SHELL-/bin/sh}
@@ -318,14 +328,6 @@ as_fn_exit ()
   as_fn_set_status $1
   exit $1
 } # as_fn_exit
-# as_fn_nop
-# ---------
-# Do nothing but, unlike ":", preserve the value of $?.
-as_fn_nop ()
-{
-  return $?
-}
-as_nop=as_fn_nop
 
 # as_fn_mkdir_p
 # -------------
@@ -340,7 +342,7 @@ as_fn_mkdir_p ()
     as_dirs=
     while :; do
       case $as_dir in #(
-      *\'*) as_qdir=`printf "%s\n" "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *\'*) as_qdir=`printf '%s\n' "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
       *) as_qdir=$as_dir;;
       esac
       as_dirs="'$as_qdir' $as_dirs"
@@ -349,7 +351,7 @@ $as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
 	 X"$as_dir" : 'X\(//\)[^/]' \| \
 	 X"$as_dir" : 'X\(//\)$' \| \
 	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
-printf "%s\n" X"$as_dir" |
+printf '%s\n' X"$as_dir" |
     sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 	    s//\1/
 	    q
@@ -394,11 +396,12 @@ then :
   {
     eval $1+=\$2
   }'
-else $as_nop
-  as_fn_append ()
+else case e in #(
+  e) as_fn_append ()
   {
     eval $1=\$$1\$2
-  }
+  } ;;
+esac
 fi # as_fn_append
 
 # as_fn_arith ARG...
@@ -412,21 +415,14 @@ then :
   {
     as_val=$(( $* ))
   }'
-else $as_nop
-  as_fn_arith ()
+else case e in #(
+  e) as_fn_arith ()
   {
     as_val=`expr "$@" || test $? -eq 1`
-  }
+  } ;;
+esac
 fi # as_fn_arith
 
-# as_fn_nop
-# ---------
-# Do nothing but, unlike ":", preserve the value of $?.
-as_fn_nop ()
-{
-  return $?
-}
-as_nop=as_fn_nop
 
 # as_fn_error STATUS ERROR [LINENO LOG_FD]
 # ----------------------------------------
@@ -438,9 +434,9 @@ as_fn_error ()
   as_status=$1; test $as_status -eq 0 && as_status=1
   if test "$4"; then
     as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
   fi
-  printf "%s\n" "$as_me: error: $2" >&2
+  printf '%s\n' "$as_me: error: $2" >&2
   as_fn_exit $as_status
 } # as_fn_error
 
@@ -467,7 +463,7 @@ as_me=`$as_basename -- "$0" ||
 $as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
 	 X"$0" : 'X\(//\)$' \| \
 	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
-printf "%s\n" X/"$0" |
+printf '%s\n' X/"$0" |
     sed '/^.*\/\([^/][^/]*\)\/*$/{
 	    s//\1/
 	    q
@@ -500,6 +496,8 @@ as_cr_alnum=$as_cr_Letters$as_cr_digits
     /[$]LINENO/=
   ' <$as_myself |
     sed '
+      t clear
+      :clear
       s/[$]LINENO.*/&-/
       t lineno
       b
@@ -511,7 +509,7 @@ as_cr_alnum=$as_cr_Letters$as_cr_digits
       s/-\n.*//
     ' >$as_me.lineno &&
   chmod +x "$as_me.lineno" ||
-    { printf "%s\n" "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+    { printf '%s\n' "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
 
   # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
   # already done that, so ensure we don't try to do so again and fall
@@ -525,30 +523,6 @@ as_cr_alnum=$as_cr_Letters$as_cr_digits
   exit
 }
 
-
-# Determine whether it's possible to make 'echo' print without a newline.
-# These variables are no longer used directly by Autoconf, but are AC_SUBSTed
-# for compatibility with existing Makefiles.
-ECHO_C= ECHO_N= ECHO_T=
-case `echo -n x` in #(((((
--n*)
-  case `echo 'xy\c'` in
-  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
-  xy)  ECHO_C='\c';;
-  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
-       ECHO_T='	';;
-  esac;;
-*)
-  ECHO_N='-n';;
-esac
-
-# For backward compatibility with old third-party macros, we provide
-# the shell variables $as_echo and $as_echo_n.  New code should use
-# AS_ECHO(["message"]) and AS_ECHO_N(["message"]), respectively.
-as_echo='printf %s\n'
-as_echo_n='printf %s'
-
-
 rm -f conf$$ conf$$.exe conf$$.file
 if test -d conf$$.dir; then
   rm -f conf$$.dir/conf$$.file
@@ -560,9 +534,9 @@ if (echo >conf$$.file) 2>/dev/null; then
   if ln -s conf$$.file conf$$ 2>/dev/null; then
     as_ln_s='ln -s'
     # ... but there are two gotchas:
-    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
-    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
-    # In both cases, we have to default to `cp -pR'.
+    # 1) On MSYS, both 'ln -s file dir' and 'ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; 'ln -s' creates a wrapper executable.
+    # In both cases, we have to default to 'cp -pR'.
     ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
       as_ln_s='cp -pR'
   elif ln conf$$.file conf$$ 2>/dev/null; then
@@ -587,10 +561,12 @@ as_test_x='test -x'
 as_executable_p=as_fn_executable_p
 
 # Sed expression to map a string onto a valid CPP name.
-as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+as_sed_cpp="y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g"
+as_tr_cpp="eval sed '$as_sed_cpp'" # deprecated
 
 # Sed expression to map a string onto a valid variable name.
-as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+as_sed_sh="y%*+%pp%;s%[^_$as_cr_alnum]%_%g"
+as_tr_sh="eval sed '$as_sed_sh'" # deprecated
 
 SHELL=${CONFIG_SHELL-/bin/sh}
 
@@ -607,6 +583,7 @@ ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`
 # Initializations.
 #
 ac_default_prefix=/usr/local
+ac_clean_CONFIG_STATUS=
 ac_clean_files=
 ac_config_libobj_dir=.
 LIBOBJS=
@@ -656,6 +633,7 @@ ac_includes_default="\
 #endif"
 
 ac_header_c_list=
+: ${enable_year2038:=no}
 ac_subst_vars='LTLIBOBJS
 LIBOBJS
 WAYLAND_SCANNER_CODE_MODE
@@ -792,13 +770,13 @@ SDL_INTERFACE_AGE
 SDL_MICRO_VERSION
 SDL_MINOR_VERSION
 SDL_MAJOR_VERSION
+ECHO_T
+ECHO_N
+ECHO_C
 target_alias
 host_alias
 build_alias
 LIBS
-ECHO_T
-ECHO_N
-ECHO_C
 DEFS
 mandir
 localedir
@@ -959,6 +937,7 @@ enable_joystick_virtual
 enable_render_d3d
 enable_sdl2_config
 enable_vendor_info
+enable_year2038
 '
       ac_precious_vars='build_alias
 host_alias
@@ -1116,9 +1095,9 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid feature name: \`$ac_useropt'"
+      as_fn_error $? "invalid feature name: '$ac_useropt'"
     ac_useropt_orig=$ac_useropt
-    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
+    ac_useropt=`printf '%s\n' "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
       *"
 "enable_$ac_useropt"
@@ -1142,9 +1121,9 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid feature name: \`$ac_useropt'"
+      as_fn_error $? "invalid feature name: '$ac_useropt'"
     ac_useropt_orig=$ac_useropt
-    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
+    ac_useropt=`printf '%s\n' "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
       *"
 "enable_$ac_useropt"
@@ -1355,9 +1334,9 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid package name: \`$ac_useropt'"
+      as_fn_error $? "invalid package name: '$ac_useropt'"
     ac_useropt_orig=$ac_useropt
-    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
+    ac_useropt=`printf '%s\n' "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
       *"
 "with_$ac_useropt"
@@ -1371,9 +1350,9 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*without-\(.*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid package name: \`$ac_useropt'"
+      as_fn_error $? "invalid package name: '$ac_useropt'"
     ac_useropt_orig=$ac_useropt
-    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
+    ac_useropt=`printf '%s\n' "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
       *"
 "with_$ac_useropt"
@@ -1401,8 +1380,8 @@ do
   | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
     x_libraries=$ac_optarg ;;
 
-  -*) as_fn_error $? "unrecognized option: \`$ac_option'
-Try \`$0 --help' for more information"
+  -*) as_fn_error $? "unrecognized option: '$ac_option'
+Try '$0 --help' for more information"
     ;;
 
   *=*)
@@ -1410,16 +1389,16 @@ Try \`$0 --help' for more information"
     # Reject names that are not valid shell variable names.
     case $ac_envvar in #(
       '' | [0-9]* | *[!_$as_cr_alnum]* )
-      as_fn_error $? "invalid variable name: \`$ac_envvar'" ;;
+      as_fn_error $? "invalid variable name: '$ac_envvar'" ;;
     esac
     eval $ac_envvar=\$ac_optarg
     export $ac_envvar ;;
 
   *)
     # FIXME: should be removed in autoconf 3.0.
-    printf "%s\n" "$as_me: WARNING: you should use --build, --host, --target" >&2
+    printf '%s\n' "$as_me: WARNING: you should use --build, --host, --target" >&2
     expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
-      printf "%s\n" "$as_me: WARNING: invalid host type: $ac_option" >&2
+      printf '%s\n' "$as_me: WARNING: invalid host type: $ac_option" >&2
     : "${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}"
     ;;
 
@@ -1427,7 +1406,7 @@ Try \`$0 --help' for more information"
 done
 
 if test -n "$ac_prev"; then
-  ac_option=--`echo $ac_prev | sed 's/_/-/g'`
+  ac_option=--`printf '%s\n' $ac_prev | sed 's/_/-/g'`
   as_fn_error $? "missing argument to $ac_option"
 fi
 
@@ -1435,7 +1414,7 @@ if test -n "$ac_unrecognized_opts"; then
   case $enable_option_checking in
     no) ;;
     fatal) as_fn_error $? "unrecognized options: $ac_unrecognized_opts" ;;
-    *)     printf "%s\n" "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;;
+    *)     printf '%s\n' "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;;
   esac
 fi
 
@@ -1460,7 +1439,7 @@ do
   as_fn_error $? "expected an absolute directory name for --$ac_var: $ac_val"
 done
 
-# There might be people who depend on the old broken behavior: `$host'
+# There might be people who depend on the old broken behavior: '$host'
 # used to hold the argument of --host etc.
 # FIXME: To remove some day.
 build=$build_alias
@@ -1499,7 +1478,7 @@ $as_expr X"$as_myself" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
 	 X"$as_myself" : 'X\(//\)[^/]' \| \
 	 X"$as_myself" : 'X\(//\)$' \| \
 	 X"$as_myself" : 'X\(/\)' \| . 2>/dev/null ||
-printf "%s\n" X"$as_myself" |
+printf '%s\n' X"$as_myself" |
     sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 	    s//\1/
 	    q
@@ -1528,7 +1507,7 @@ if test ! -r "$srcdir/$ac_unique_file"; then
   test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
   as_fn_error $? "cannot find sources ($ac_unique_file) in $srcdir"
 fi
-ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
+ac_msg="sources are in $srcdir, but 'cd $srcdir' does not work"
 ac_abs_confdir=`(
 	cd "$srcdir" && test -r "./$ac_unique_file" || as_fn_error $? "$ac_msg"
 	pwd)`
@@ -1556,7 +1535,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures this package to adapt to many kinds of systems.
+'configure' configures this package to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1570,11 +1549,11 @@ Configuration:
       --help=short        display options specific to this package
       --help=recursive    display the short help of all the included packages
   -V, --version           display version information and exit
-  -q, --quiet, --silent   do not print \`checking ...' messages
+  -q, --quiet, --silent   do not print 'checking ...' messages
       --cache-file=FILE   cache test results in FILE [disabled]
-  -C, --config-cache      alias for \`--cache-file=config.cache'
+  -C, --config-cache      alias for '--cache-file=config.cache'
   -n, --no-create         do not create output files
-      --srcdir=DIR        find the sources in DIR [configure dir or \`..']
+      --srcdir=DIR        find the sources in DIR [configure dir or '..']
 
 Installation directories:
   --prefix=PREFIX         install architecture-independent files in PREFIX
@@ -1582,10 +1561,10 @@ Installation directories:
   --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
                           [PREFIX]
 
-By default, \`make install' will install all the files in
-\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc.  You can specify
-an installation prefix other than \`$ac_default_prefix' using \`--prefix',
-for instance \`--prefix=\$HOME'.
+By default, 'make install' will install all the files in
+'$ac_default_prefix/bin', '$ac_default_prefix/lib' etc.  You can specify
+an installation prefix other than '$ac_default_prefix' using '--prefix',
+for instance '--prefix=\$HOME'.
 
 For better control, use the options below.
 
@@ -1791,6 +1770,7 @@ Optional Features:
   --enable-sdl2-config    Install sdl2-config [default=yes]
   --enable-vendor-info=STRING
                           Add vendor info to SDL_REVISION
+  --enable-year2038       support timestamps after 2038
 
 Optional Packages:
   --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
@@ -1875,7 +1855,7 @@ Some influential environment variables:
               C compiler flags for LIBUSB, overriding pkg-config
   LIBUSB_LIBS linker flags for LIBUSB, overriding pkg-config
 
-Use these variables to override the choices made by `configure' or to help
+Use these variables to override the choices made by 'configure' or to help
 it to find libraries and programs with nonstandard names/locations.
 
 Report bugs to the package provider.
@@ -1894,9 +1874,9 @@ if test "$ac_init_help" = "recursive"; then
 case "$ac_dir" in
 .) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
 *)
-  ac_dir_suffix=/`printf "%s\n" "$ac_dir" | sed 's|^\.[\\/]||'`
+  ac_dir_suffix=/`printf '%s\n' "$ac_dir" | sed 's|^\.[\\/]||'`
   # A ".." for each directory in $ac_dir_suffix.
-  ac_top_builddir_sub=`printf "%s\n" "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  ac_top_builddir_sub=`printf '%s\n' "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
   case $ac_top_builddir_sub in
   "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
   *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
@@ -1933,7 +1913,7 @@ ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
       echo &&
       $SHELL "$ac_srcdir/configure" --help=recursive
     else
-      printf "%s\n" "$as_me: WARNING: no configuration information is in $ac_dir" >&2
+      printf '%s\n' "$as_me: WARNING: no configuration information is in $ac_dir" >&2
     fi || ac_status=$?
     cd "$ac_pwd" || { ac_status=$?; break; }
   done
@@ -1943,9 +1923,9 @@ test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
 configure
-generated by GNU Autoconf 2.71
+generated by GNU Autoconf 2.73
 
-Copyright (C) 2021 Free Software Foundation, Inc.
+Copyright (C) 2026 Free Software Foundation, Inc.
 This configure script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it.
 _ACEOF
@@ -1969,7 +1949,7 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-printf "%s\n" "$ac_try_echo"; } >&5
+printf '%s\n' "$ac_try_echo"; } >&5
   (eval "$ac_compile") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
@@ -1977,18 +1957,19 @@ printf "%s\n" "$ac_try_echo"; } >&5
     cat conftest.er1 >&5
     mv -f conftest.er1 conftest.err
   fi
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } && {
 	 test -z "$ac_c_werror_flag" ||
 	 test ! -s conftest.err
        } && test -s conftest.$ac_objext
 then :
   ac_retval=0
-else $as_nop
-  printf "%s\n" "$as_me: failed program was:" >&5
+else case e in #(
+  e) printf '%s\n' "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-	ac_retval=1
+	ac_retval=1 ;;
+esac
 fi
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
   as_fn_set_status $ac_retval
@@ -2008,7 +1989,7 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-printf "%s\n" "$ac_try_echo"; } >&5
+printf '%s\n' "$ac_try_echo"; } >&5
   (eval "$ac_link") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
@@ -2016,7 +1997,7 @@ printf "%s\n" "$ac_try_echo"; } >&5
     cat conftest.er1 >&5
     mv -f conftest.er1 conftest.err
   fi
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } && {
 	 test -z "$ac_c_werror_flag" ||
 	 test ! -s conftest.err
@@ -2026,11 +2007,12 @@ printf "%s\n" "$ac_try_echo"; } >&5
        }
 then :
   ac_retval=0
-else $as_nop
-  printf "%s\n" "$as_me: failed program was:" >&5
+else case e in #(
+  e) printf '%s\n' "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-	ac_retval=1
+	ac_retval=1 ;;
+esac
 fi
   # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
   # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
@@ -2049,13 +2031,13 @@ fi
 ac_fn_c_check_header_compile ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
 printf %s "checking for $2... " >&6; }
 if eval test \${$3+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $4
 #include <$2>
@@ -2063,14 +2045,16 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   eval "$3=yes"
-else $as_nop
-  eval "$3=no"
+else case e in #(
+  e) eval "$3=no" ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 eval ac_res=\$$3
-	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-printf "%s\n" "$ac_res" >&6; }
+	       { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+printf '%s\n' "$ac_res" >&6; }
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 
 } # ac_fn_c_check_header_compile
@@ -2081,20 +2065,20 @@ printf "%s\n" "$ac_res" >&6; }
 ac_fn_c_check_func ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
 printf %s "checking for $2... " >&6; }
 if eval test \${$3+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 /* Define $2 to an innocuous variant, in case <limits.h> declares $2.
    For example, HP-UX 11i <limits.h> declares gettimeofday.  */
 #define $2 innocuous_$2
 
 /* System header to define __stub macros and hopefully few prototypes,
-   which can conflict with char $2 (); below.  */
+   which can conflict with char $2 (void); below.  */
 
 #include <limits.h>
 #undef $2
@@ -2105,7 +2089,7 @@ else $as_nop
 #ifdef __cplusplus
 extern "C"
 #endif
-char $2 ();
+char $2 (void);
 /* The GNU C library defines this for functions which it implements
     to always fail with ENOSYS.  Some functions are actually named
     something starting with __ and the normal name is an alias.  */
@@ -2124,15 +2108,17 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   eval "$3=yes"
-else $as_nop
-  eval "$3=no"
+else case e in #(
+  e) eval "$3=no" ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
-    conftest$ac_exeext conftest.$ac_ext
+    conftest$ac_exeext conftest.$ac_ext ;;
+esac
 fi
 eval ac_res=\$$3
-	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-printf "%s\n" "$ac_res" >&6; }
+	       { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+printf '%s\n' "$ac_res" >&6; }
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 
 } # ac_fn_c_check_func
@@ -2150,7 +2136,7 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-printf "%s\n" "$ac_try_echo"; } >&5
+printf '%s\n' "$ac_try_echo"; } >&5
   (eval "$ac_compile") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
@@ -2158,18 +2144,19 @@ printf "%s\n" "$ac_try_echo"; } >&5
     cat conftest.er1 >&5
     mv -f conftest.er1 conftest.err
   fi
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } && {
 	 test -z "$ac_cxx_werror_flag" ||
 	 test ! -s conftest.err
        } && test -s conftest.$ac_objext
 then :
   ac_retval=0
-else $as_nop
-  printf "%s\n" "$as_me: failed program was:" >&5
+else case e in #(
+  e) printf '%s\n' "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-	ac_retval=1
+	ac_retval=1 ;;
+esac
 fi
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
   as_fn_set_status $ac_retval
@@ -2188,7 +2175,7 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-printf "%s\n" "$ac_try_echo"; } >&5
+printf '%s\n' "$ac_try_echo"; } >&5
   (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
@@ -2196,18 +2183,19 @@ printf "%s\n" "$ac_try_echo"; } >&5
     cat conftest.er1 >&5
     mv -f conftest.er1 conftest.err
   fi
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } > conftest.i && {
 	 test -z "$ac_cxx_preproc_warn_flag$ac_cxx_werror_flag" ||
 	 test ! -s conftest.err
        }
 then :
   ac_retval=0
-else $as_nop
-  printf "%s\n" "$as_me: failed program was:" >&5
+else case e in #(
+  e) printf '%s\n' "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-    ac_retval=1
+    ac_retval=1 ;;
+esac
 fi
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
   as_fn_set_status $ac_retval
@@ -2227,7 +2215,7 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-printf "%s\n" "$ac_try_echo"; } >&5
+printf '%s\n' "$ac_try_echo"; } >&5
   (eval "$ac_link") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
@@ -2235,7 +2223,7 @@ printf "%s\n" "$ac_try_echo"; } >&5
     cat conftest.er1 >&5
     mv -f conftest.er1 conftest.err
   fi
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } && {
 	 test -z "$ac_cxx_werror_flag" ||
 	 test ! -s conftest.err
@@ -2245,11 +2233,12 @@ printf "%s\n" "$ac_try_echo"; } >&5
        }
 then :
   ac_retval=0
-else $as_nop
-  printf "%s\n" "$as_me: failed program was:" >&5
+else case e in #(
+  e) printf '%s\n' "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-	ac_retval=1
+	ac_retval=1 ;;
+esac
 fi
   # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
   # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
@@ -2268,13 +2257,13 @@ fi
 ac_fn_c_check_type ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
 printf %s "checking for $2... " >&6; }
 if eval test \${$3+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  eval "$3=no"
+else case e in #(
+  e) eval "$3=no"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $4
@@ -2304,16 +2293,18 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
 
-else $as_nop
-  eval "$3=yes"
+else case e in #(
+  e) eval "$3=yes" ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 eval ac_res=\$$3
-	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-printf "%s\n" "$ac_res" >&6; }
+	       { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+printf '%s\n' "$ac_res" >&6; }
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 
 } # ac_fn_c_check_type
@@ -2330,7 +2321,7 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-printf "%s\n" "$ac_try_echo"; } >&5
+printf '%s\n' "$ac_try_echo"; } >&5
   (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
@@ -2338,18 +2329,19 @@ printf "%s\n" "$ac_try_echo"; } >&5
     cat conftest.er1 >&5
     mv -f conftest.er1 conftest.err
   fi
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } > conftest.i && {
 	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
 	 test ! -s conftest.err
        }
 then :
   ac_retval=0
-else $as_nop
-  printf "%s\n" "$as_me: failed program was:" >&5
+else case e in #(
+  e) printf '%s\n' "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-    ac_retval=1
+    ac_retval=1 ;;
+esac
 fi
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
   as_fn_set_status $ac_retval
@@ -2369,29 +2361,30 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-printf "%s\n" "$ac_try_echo"; } >&5
+printf '%s\n' "$ac_try_echo"; } >&5
   (eval "$ac_link") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
   { { case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-printf "%s\n" "$ac_try_echo"; } >&5
+printf '%s\n' "$ac_try_echo"; } >&5
   (eval "$ac_try") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; }
 then :
   ac_retval=0
-else $as_nop
-  printf "%s\n" "$as_me: program exited with status $ac_status" >&5
-       printf "%s\n" "$as_me: failed program was:" >&5
+else case e in #(
+  e) printf '%s\n' "$as_me: program exited with status $ac_status" >&5
+       printf '%s\n' "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-       ac_retval=$ac_status
+       ac_retval=$ac_status ;;
+esac
 fi
   rm -rf conftest.dSYM conftest_ipa8_conftest.oo
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
@@ -2406,13 +2399,13 @@ fi
 ac_fn_c_check_member ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $2.$3" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $2.$3" >&5
 printf %s "checking for $2.$3... " >&6; }
 if eval test \${$4+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $5
 int
@@ -2428,8 +2421,8 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   eval "$4=yes"
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $5
 int
@@ -2445,16 +2438,19 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   eval "$4=yes"
-else $as_nop
-  eval "$4=no"
+else case e in #(
+  e) eval "$4=no" ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 eval ac_res=\$$4
-	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-printf "%s\n" "$ac_res" >&6; }
+	       { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+printf '%s\n' "$ac_res" >&6; }
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 
 } # ac_fn_c_check_member
@@ -2467,13 +2463,13 @@ ac_fn_check_decl ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
   as_decl_name=`echo $2|sed 's/ *(.*//'`
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $as_decl_name is declared" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking whether $as_decl_name is declared" >&5
 printf %s "checking whether $as_decl_name is declared... " >&6; }
 if eval test \${$3+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  as_decl_use=`echo $2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'`
+else case e in #(
+  e) as_decl_use=`echo $2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'`
   eval ac_save_FLAGS=\$$6
   as_fn_append $6 " $5"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -2497,16 +2493,18 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   eval "$3=yes"
-else $as_nop
-  eval "$3=no"
+else case e in #(
+  e) eval "$3=no" ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
   eval $6=\$ac_save_FLAGS
-
+ ;;
+esac
 fi
 eval ac_res=\$$3
-	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-printf "%s\n" "$ac_res" >&6; }
+	       { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+printf '%s\n' "$ac_res" >&6; }
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 
 } # ac_fn_check_decl
@@ -2515,7 +2513,7 @@ for ac_arg
 do
   case $ac_arg in
   *\'*)
-    ac_arg=`printf "%s\n" "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    ac_arg=`printf '%s\n' "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
   esac
   as_fn_append ac_configure_args_raw " '$ac_arg'"
 done
@@ -2527,7 +2525,7 @@ case $ac_configure_args_raw in
     ac_unsafe_z='|&;<>()$`\\"*?[ ''	' # This string ends in space, tab.
     ac_unsafe_a="$ac_unsafe_z#~"
     ac_safe_unquote="s/ '\\([^$ac_unsafe_a][^$ac_unsafe_z]*\\)'/ \\1/g"
-    ac_configure_args_raw=`      printf "%s\n" "$ac_configure_args_raw" | sed "$ac_safe_unquote"`;;
+    ac_configure_args_raw=`      printf '%s\n' "$ac_configure_args_raw" | sed "$ac_safe_unquote"`;;
 esac
 
 cat >config.log <<_ACEOF
@@ -2535,7 +2533,7 @@ This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
 It was created by $as_me, which was
-generated by GNU Autoconf 2.71.  Invocation command line was
+generated by GNU Autoconf 2.73.  Invocation command line was
 
   $ $0$ac_configure_args_raw
 
@@ -2575,7 +2573,7 @@ do
     */) ;;
     *) as_dir=$as_dir/ ;;
   esac
-    printf "%s\n" "PATH: $as_dir"
+    printf '%s\n' "PATH: $as_dir"
   done
 IFS=$as_save_IFS
 
@@ -2610,7 +2608,7 @@ do
     | -silent | --silent | --silen | --sile | --sil)
       continue ;;
     *\'*)
-      ac_arg=`printf "%s\n" "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+      ac_arg=`printf '%s\n' "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
     esac
     case $ac_pass in
     1) as_fn_append ac_configure_args0 " '$ac_arg'" ;;
@@ -2639,31 +2637,22 @@ done
 { ac_configure_args0=; unset ac_configure_args0;}
 { ac_configure_args1=; unset ac_configure_args1;}
 
-# When interrupted or exit'd, cleanup temporary files, and complete
-# config.log.  We remove comments because anyway the quotes in there
-# would cause problems or look ugly.
-# WARNING: Use '\'' to represent an apostrophe within the trap.
-# WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
-trap 'exit_status=$?
-  # Sanitize IFS.
-  IFS=" ""	$as_nl"
-  # Save into config.log some information that might help in debugging.
-  {
-    echo
-
-    printf "%s\n" "## ---------------- ##
-## Cache variables. ##
-## ---------------- ##"
-    echo
-    # The following way of writing the cache mishandles newlines in values,
+# Dump the cache to stdout.  It can be in a pipe (this is a requirement).
+ac_cache_dump ()
+{
+  # The following way of writing the cache mishandles newlines in values,
+# but we know of no workaround that is simple, portable, and efficient.
+# So, we kill variables containing newlines.
+# Ultrix sh set writes to stderr and can't be redirected directly,
+# and sets the high bit in the cache file unless we assign to the vars.
 (
-  for ac_var in `(set) 2>&1 | sed -n '\''s/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'\''`; do
+  for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do
     eval ac_val=\$$ac_var
     case $ac_val in #(
     *${as_nl}*)
       case $ac_var in #(
-      *_cv_*) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
-printf "%s\n" "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+      *_cv_*) { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+printf '%s\n' "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
       esac
       case $ac_var in #(
       _ | IFS | as_nl) ;; #(
@@ -2672,67 +2661,95 @@ printf "%s\n" "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;}
       esac ;;
     esac
   done
+
   (set) 2>&1 |
-    case $as_nl`(ac_space='\'' '\''; set) 2>&1` in #(
+    case $as_nl`(ac_space=' '; set) 2>&1` in #(
     *${as_nl}ac_space=\ *)
+      # 'set' does not quote correctly, so add quotes: double-quote
+      # substitution turns \\\\ into \\, and sed turns \\ into \.
       sed -n \
-	"s/'\''/'\''\\\\'\'''\''/g;
-	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\''\\2'\''/p"
+	"s/'/'\\\\''/g;
+	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
       ;; #(
     *)
+      # 'set' quotes correctly as required by POSIX, so do not add quotes.
       sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
       ;;
     esac |
     sort
 )
-    echo
+}
 
-    printf "%s\n" "## ----------------- ##
+# Print debugging info to stdout.
+ac_dump_debugging_info ()
+{
+  echo
+
+  printf '%s\n' "## ---------------- ##
+## Cache variables. ##
+## ---------------- ##"
+  echo
+  ac_cache_dump
+  echo
+
+  printf '%s\n' "## ----------------- ##
 ## Output variables. ##
 ## ----------------- ##"
+  echo
+  for ac_var in $ac_subst_vars
+  do
+    eval ac_val=\$$ac_var
+    case $ac_val in
+    *\'*) ac_val=`printf '%s\n' "$ac_val" | sed "s/'/'\\\\\\\\''/g"`;;
+    esac
+    printf '%s\n' "$ac_var='$ac_val'"
+  done | sort
+  echo
+
+  if test -n "$ac_subst_files"; then
+    printf '%s\n' "## ------------------- ##
+## File substitutions. ##
+## ------------------- ##"
     echo
-    for ac_var in $ac_subst_vars
+    for ac_var in $ac_subst_files
     do
       eval ac_val=\$$ac_var
       case $ac_val in
-      *\'\''*) ac_val=`printf "%s\n" "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+      *\'*) ac_val=`printf '%s\n' "$ac_val" | sed "s/'/'\\\\\\\\''/g"`;;
       esac
-      printf "%s\n" "$ac_var='\''$ac_val'\''"
+      printf '%s\n' "$ac_var='$ac_val'"
     done | sort
     echo
+  fi
 
-    if test -n "$ac_subst_files"; then
-      printf "%s\n" "## ------------------- ##
-## File substitutions. ##
-## ------------------- ##"
-      echo
-      for ac_var in $ac_subst_files
-      do
-	eval ac_val=\$$ac_var
-	case $ac_val in
-	*\'\''*) ac_val=`printf "%s\n" "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
-	esac
-	printf "%s\n" "$ac_var='\''$ac_val'\''"
-      done | sort
-      echo
-    fi
-
-    if test -s confdefs.h; then
-      printf "%s\n" "## ----------- ##
+  if test -s confdefs.h; then
+    printf '%s\n' "## ----------- ##
 ## confdefs.h. ##
 ## ----------- ##"
-      echo
-      cat confdefs.h
-      echo
-    fi
-    test "$ac_signal" != 0 &&
-      printf "%s\n" "$as_me: caught signal $ac_signal"
-    printf "%s\n" "$as_me: exit $exit_status"
-  } >&5
-  rm -f core *.core core.conftest.* &&
+    echo
+    cat confdefs.h
+    echo
+  fi
+  test "$ac_signal" != 0 &&
+    printf '%s\n' "$as_me: caught signal $ac_signal"
+  printf '%s\n' "$as_me: exit $exit_status"
+}
+
+# When interrupted or exit'd, cleanup temporary files, and complete
+# config.log.
+ac_exit_trap ()
+{
+  exit_status=
+  # Sanitize IFS.
+  IFS=" ""	$as_nl"
+  # Save into config.log some information that might help in debugging.
+  ac_dump_debugging_info >&5
+  eval "rm -f $ac_clean_CONFIG_STATUS core *.core core.conftest.*" &&
     rm -f -r conftest* confdefs* conf$$* $ac_clean_files &&
     exit $exit_status
-' 0
+}
+
+trap 'ac_exit_trap $?' 0
 for ac_signal in 1 2 13 15; do
   trap 'ac_signal='$ac_signal'; as_fn_exit 1' $ac_signal
 done
@@ -2741,21 +2758,21 @@ ac_signal=0
 # confdefs.h avoids OS command line length limits that DEFS can exceed.
 rm -f -r conftest* confdefs.h
 
-printf "%s\n" "/* confdefs.h */" > confdefs.h
+printf '%s\n' "/* confdefs.h */" > confdefs.h
 
 # Predefined preprocessor variables.
 
-printf "%s\n" "#define PACKAGE_NAME \"$PACKAGE_NAME\"" >>confdefs.h
+printf '%s\n' "#define PACKAGE_NAME \"$PACKAGE_NAME\"" >>confdefs.h
 
-printf "%s\n" "#define PACKAGE_TARNAME \"$PACKAGE_TARNAME\"" >>confdefs.h
+printf '%s\n' "#define PACKAGE_TARNAME \"$PACKAGE_TARNAME\"" >>confdefs.h
 
-printf "%s\n" "#define PACKAGE_VERSION \"$PACKAGE_VERSION\"" >>confdefs.h
+printf '%s\n' "#define PACKAGE_VERSION \"$PACKAGE_VERSION\"" >>confdefs.h
 
-printf "%s\n" "#define PACKAGE_STRING \"$PACKAGE_STRING\"" >>confdefs.h
+printf '%s\n' "#define PACKAGE_STRING \"$PACKAGE_STRING\"" >>confdefs.h
 
-printf "%s\n" "#define PACKAGE_BUGREPORT \"$PACKAGE_BUGREPORT\"" >>confdefs.h
+printf '%s\n' "#define PACKAGE_BUGREPORT \"$PACKAGE_BUGREPORT\"" >>confdefs.h
 
-printf "%s\n" "#define PACKAGE_URL \"$PACKAGE_URL\"" >>confdefs.h
+printf '%s\n' "#define PACKAGE_URL \"$PACKAGE_URL\"" >>confdefs.h
 
 
 # Let the site file select an alternate cache file if it wants to.
@@ -2777,14 +2794,14 @@ do
     ac_site_file=./$ac_site_file ;;
 esac
   if test -f "$ac_site_file" && test -r "$ac_site_file"; then
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
-printf "%s\n" "$as_me: loading site script $ac_site_file" >&6;}
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
+printf '%s\n' "$as_me: loading site script $ac_site_file" >&6;}
     sed 's/^/| /' "$ac_site_file" >&5
     . "$ac_site_file" \
-      || { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+      || { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf '%s\n' "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "failed to load site script $ac_site_file
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
   fi
 done
 
@@ -2792,27 +2809,120 @@ if test -r "$cache_file"; then
   # Some versions of bash will fail to source /dev/null (special files
   # actually), so we avoid doing that.  DJGPP emulates it as a regular file.
   if test /dev/null != "$cache_file" && test -f "$cache_file"; then
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
-printf "%s\n" "$as_me: loading cache $cache_file" >&6;}
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
+printf '%s\n' "$as_me: loading cache $cache_file" >&6;}
     case $cache_file in
       [\\/]* | ?:[\\/]* ) . "$cache_file";;
       *)                      . "./$cache_file";;
     esac
   fi
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
-printf "%s\n" "$as_me: creating cache $cache_file" >&6;}
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
+printf '%s\n' "$as_me: creating cache $cache_file" >&6;}
   >$cache_file
 fi
 
+# Test code for whether the C compiler supports C23 (global declarations)
+ac_c_conftest_c23_globals='
+/* Does the compiler advertise conformance to C17 or earlier?
+   Although GCC 14 does not do that, even with -std=gnu23,
+   it is close enough, and defines __STDC_VERSION == 202000L.  */
+#if !defined __STDC_VERSION__ || __STDC_VERSION__ <= 201710L
+# error "Compiler advertises conformance to C17 or earlier"
+#endif
+
+// Check alignas.
+char alignas (double) c23_aligned_as_double;
+char alignas (0) c23_no_special_alignment;
+extern char c23_aligned_as_int;
+char alignas (0) alignas (int) c23_aligned_as_int;
+
+// Check alignof.
+enum
+{
+  c23_int_alignment = alignof (int),
+  c23_int_array_alignment = alignof (int[100]),
+  c23_char_alignment = alignof (char)
+};
+static_assert (0 < -alignof (int), "alignof is signed");
+
+int function_with_unnamed_parameter (int) { return 0; }
+
+void c23_noreturn ();
+
+/* Test parsing of string and char UTF-8 literals (including hex escapes).
+   The parens pacify GCC 15.  */
+bool use_u8 = (!sizeof u8"\xFF") == (!u8'\''x'\'');
+
+bool check_that_bool_works = true | false | !nullptr;
+#if !true
+# error "true does not work in #if"
+#endif
+#if false
+#elifdef __STDC_VERSION__
+#else
+# error "#elifdef does not work"
+#endif
+
+#ifndef __has_c_attribute
+# error "__has_c_attribute not defined"
+#endif
+
+#ifndef __has_include
+# error "__has_include not defined"
+#endif
+
+#define LPAREN() (
+#define FORTY_TWO(x) 42
+#define VA_OPT_TEST(r, x, ...) __VA_OPT__ (FORTY_TWO r x))
+static_assert (VA_OPT_TEST (LPAREN (), 0, <:-) == 42);
+
+static_assert (0b101010 == 42);
+static_assert (0B101010 == 42);
+static_assert (0xDEAD'\''BEEF == 3'\''735'\''928'\''559);
+static_assert (0.500'\''000'\''000 == 0.5);
+
+enum unsignedish : unsigned int { uione = 1 };
+static_assert (0 < -uione);
+
+#include <stddef.h>
+constexpr nullptr_t null_pointer = nullptr;
+
+static typeof (1 + 1L) two () { return 2; }
+static long int three () { return 3; }
+'
+
+# Test code for whether the C compiler supports C23 (body of main).
+ac_c_conftest_c23_main='
+  {
+    label_before_declaration:
+      int arr[10] = {};
+      if (arr[0])
+        goto label_before_declaration;
+      if (!arr[0])
+        goto label_at_end_of_block;
+    label_at_end_of_block:
+  }
+  ok |= !null_pointer;
+  ok |= two != three;
+'
+
+# Test code for whether the C compiler supports C23 (complete).
+ac_c_conftest_c23_program="${ac_c_conftest_c23_globals}
+
+int
+main (int, char **)
+{
+  int ok = 0;
+  ${ac_c_conftest_c23_main}
+  return ok;
+}
+"
+
 # Test code for whether the C compiler supports C89 (global declarations)
 ac_c_conftest_c89_globals='
-/* Does the compiler advertise C89 conformance?
-   Do not test the value of __STDC__, because some compilers set it to 0
-   while being otherwise adequately conformant. */
-#if !defined __STDC__
-# error "Compiler does not advertise C89 conformance"
-#endif
+/* Do not test the value of __STDC__, because some compilers define it to 0
+   or do not define it, while otherwise adequately conforming.  */
 
 #include <stddef.h>
 #include <stdarg.h>
@@ -2820,9 +2930,7 @@ struct stat;
 /* Most of the following tests are stolen from RCS 5.7 src/conf.sh.  */
 struct buf { int x; };
 struct buf * (*rcsopen) (struct buf *, struct stat *, int);
-static char *e (p, i)
-     char **p;
-     int i;
+static char *e (char **p, int i)
 {
   return p[i];
 }
@@ -2836,6 +2944,21 @@ static char *f (char * (*g) (char **, int), char **p, ...)
   return s;
 }
 
+/* C89 style stringification. */
+#define noexpand_stringify(a) #a
+const char *stringified = noexpand_stringify(arbitrary+token=sequence);
+
+/* C89 style token pasting.  Exercises some of the corner cases that
+   e.g. old MSVC gets wrong, but not very hard. */
+#define noexpand_concat(a,b) a##b
+#define expand_concat(a,b) noexpand_concat(a,b)
+extern int vA;
+extern int vbee;
+#define aye A
+#define bee B
+int *pvA = &expand_concat(v,aye);
+int *pvbee = &noexpand_concat(v,bee);
+
 /* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
    function prototypes and stuff, but not \xHH hex character constants.
    These do not provoke an error unfortunately, instead are silently treated
@@ -2863,20 +2986,24 @@ ok |= (argc == 0 || f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]);
 
 # Test code for whether the C compiler supports C99 (global declarations)
 ac_c_conftest_c99_globals='
-// Does the compiler advertise C99 conformance?
+/* Does the compiler advertise C99 conformance? */
 #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 199901L
 # error "Compiler does not advertise C99 conformance"
 #endif
 
+// See if C++-style comments work.
+
 #include <stdbool.h>
 extern int puts (const char *);
 extern int printf (const char *, ...);
 extern int dprintf (int, const char *, ...);
 extern void *malloc (size_t);
+extern void free (void *);
 
 // Check varargs macros.  These examples are taken from C99 6.10.3.5.
 // dprintf is used instead of fprintf to avoid needing to declare
-// FILE and stderr.
+// FILE and stderr, and "aND" is used instead of "and" to work around
+// GCC bug 40564 which is irrelevant here.
 #define debug(...) dprintf (2, __VA_ARGS__)
 #define showlist(...) puts (#__VA_ARGS__)
 #define report(test,...) ((test) ? puts (#test) : printf (__VA_ARGS__))
@@ -2887,7 +3014,7 @@ test_varargs_macros (void)
   int y = 5678;
   debug ("Flag");
   debug ("X = %d\n", x);
-  showlist (The first, second, and third items.);
+  showlist (The first, second, aND third items.);
   report (x>y, "x is %d but y is %d", x, y);
 }
 
@@ -2922,7 +3049,6 @@ typedef const char *ccp;
 static inline int
 test_restrict (ccp restrict text)
 {
-  // See if C++-style comments work.
   // Iterate through items via the restricted pointer.
   // Also check for declarations in for loops.
   for (unsigned int i = 0; *(text+i) != '\''\0'\''; ++i)
@@ -2976,18 +3102,20 @@ ac_c_conftest_c99_main='
   // Check restrict.
   if (test_restrict ("String literal") == 0)
     success = true;
-  char *restrict newvar = "Another string";
+  const char *restrict newvar = "Another string";
 
   // Check varargs.
   success &= test_varargs ("s, d'\'' f .", "string", 65, 34.234);
   test_varargs_macros ();
 
   // Check flexible array members.
-  struct incomplete_array *ia =
-    malloc (sizeof (struct incomplete_array) + (sizeof (double) * 10));
+  static struct incomplete_array *volatile incomplete_array_pointer;
+  struct incomplete_array *ia = incomplete_array_pointer;
   ia->datasize = 10;
   for (int i = 0; i < ia->datasize; ++i)
     ia->data[i] = i * 1.234;
+  // Work around memory leak warnings.
+  free (ia);
 
   // Check named initializers.
   struct named_init ni = {
@@ -2998,18 +3126,17 @@ ac_c_conftest_c99_main='
 
   ni.number = 58;
 
-  int dynamic_array[ni.number];
-  dynamic_array[0] = argv[0][0];
-  dynamic_array[ni.number - 1] = 543;
+  // Do not test for VLAs, as some otherwise-conforming compilers lack them.
+  // C code should instead use __STDC_NO_VLA__; see Autoconf manual.
 
   // work around unused variable warnings
   ok |= (!success || bignum == 0LL || ubignum == 0uLL || newvar[0] == '\''x'\''
-	 || dynamic_array[ni.number - 1] != 543);
+	 || ni.number != 58);
 '
 
 # Test code for whether the C compiler supports C11 (global declarations)
 ac_c_conftest_c11_globals='
-// Does the compiler advertise C11 conformance?
+/* Does the compiler advertise C11 conformance? */
 #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112L
 # error "Compiler does not advertise C11 conformance"
 #endif
@@ -3122,222 +3249,6 @@ as_fn_append ac_header_c_list " strings.h strings_h HAVE_STRINGS_H"
 as_fn_append ac_header_c_list " sys/stat.h sys_stat_h HAVE_SYS_STAT_H"
 as_fn_append ac_header_c_list " sys/types.h sys_types_h HAVE_SYS_TYPES_H"
 as_fn_append ac_header_c_list " unistd.h unistd_h HAVE_UNISTD_H"
-# Test code for whether the C++ compiler supports C++98 (global declarations)
-ac_cxx_conftest_cxx98_globals='
-// Does the compiler advertise C++98 conformance?
-#if !defined __cplusplus || __cplusplus < 199711L
-# error "Compiler does not advertise C++98 conformance"
-#endif
-
-// These inclusions are to reject old compilers that
-// lack the unsuffixed header files.
-#include <cstdlib>
-#include <exception>
-
-// <cassert> and <cstring> are *not* freestanding headers in C++98.
-extern void assert (int);
-namespace std {
-  extern int strcmp (const char *, const char *);
-}
-
-// Namespaces, exceptions, and templates were all added after "C++ 2.0".
-using std::exception;
-using std::strcmp;
-
-namespace {
-
-void test_exception_syntax()
-{
-  try {
-    throw "test";
-  } catch (const char *s) {
-    // Extra parentheses suppress a warning when building autoconf itself,
-    // due to lint rules shared with more typical C programs.
-    assert (!(strcmp) (s, "test"));
-  }
-}
-
-template <typename T> struct test_template
-{
-  T const val;
-  explicit test_template(T t) : val(t) {}
-  template <typename U> T add(U u) { return static_cast<T>(u) + val; }
-};
-
-} // anonymous namespace
-'
-
-# Test code for whether the C++ compiler supports C++98 (body of main)
-ac_cxx_conftest_cxx98_main='
-  assert (argc);
-  assert (! argv[0]);
-{
-  test_exception_syntax ();
-  test_template<double> tt (2.0);
-  assert (tt.add (4) == 6.0);
-  assert (true && !false);
-}
-'
-
-# Test code for whether the C++ compiler supports C++11 (global declarations)
-ac_cxx_conftest_cxx11_globals='
-// Does the compiler advertise C++ 2011 conformance?
-#if !defined __cplusplus || __cplusplus < 201103L
-# error "Compiler does not advertise C++11 conformance"
-#endif
-
-namespace cxx11test
-{
-  constexpr int get_val() { return 20; }
-
-  struct testinit
-  {
-    int i;
-    double d;
-  };
-
-  class delegate
-  {
-  public:
-    delegate(int n) : n(n) {}
-    delegate(): delegate(2354) {}
-
-    virtual int getval() { return this->n; };
-  protected:
-    int n;
-  };
-
-  class overridden : public delegate
-  {
-  public:
-    overridden(int n): delegate(n) {}
-    virtual int getval() override final { return this->n * 2; }
-  };
-
-  class nocopy
-  {
-  public:
-    nocopy(int i): i(i) {}
-    nocopy() = default;
-    nocopy(const nocopy&) = delete;
-    nocopy & operator=(const nocopy&) = delete;
-  private:
-    int i;
-  };
-
-  // for testing lambda expressions
-  template <typename Ret, typename Fn> Ret eval(Fn f, Ret v)
-  {
-    return f(v);
-  }
-
-  // for testing variadic templates and trailing return types
-  template <typename V> auto sum(V first) -> V
-  {
-    return first;
-  }
-  template <typename V, typename... Args> auto sum(V first, Args... rest) -> V
-  {
-    return first + sum(rest...);
-  }
-}
-'
-
-# Test code for whether the C++ compiler supports C++11 (body of main)
-ac_cxx_conftest_cxx11_main='
-{
-  // Test auto and decltype
-  auto a1 = 6538;
-  auto a2 = 48573953.4;
-  auto a3 = "String literal";
-
-  int total = 0;
-  for (auto i = a3; *i; ++i) { total += *i; }
-
-  decltype(a2) a4 = 34895.034;
-}
-{
-  // Test constexpr
-  short sa[cxx11test::get_val()] = { 0 };
-}
-{
-  // Test initializer lists
-  cxx11test::testinit il = { 4323, 435234.23544 };
-}
-{
-  // Test range-based for
-  int array[] = {9, 7, 13, 15, 4, 18, 12, 10, 5, 3,
-                 14, 19, 17, 8, 6, 20, 16, 2, 11, 1};
-  for (auto &x : array) { x += 23; }
-}
-{
-  // Test lambda expressions
-  using cxx11test::eval;
-  assert (eval ([](int x) { return x*2; }, 21) == 42);
-  double d = 2.0;
-  assert (eval ([&](double x) { return d += x; }, 3.0) == 5.0);
-  assert (d == 5.0);
-  assert (eval ([=](double x) mutable { return d += x; }, 4.0) == 9.0);
-  assert (d == 5.0);
-}
-{
-  // Test use of variadic templates
-  using cxx11test::sum;
-  auto a = sum(1);
-  auto b = sum(1, 2);
-  auto c = sum(1.0, 2.0, 3.0);
-}
-{
-  // Test constructor delegation
-  cxx11test::delegate d1;
-  cxx11test::delegate d2();
-  cxx11test::delegate d3(45);
-}
-{
-  // Test override and final
-  cxx11test::overridden o1(55464);
-}
-{
-  // Test nullptr
-  char *c = nullptr;
-}
-{
-  // Test template brackets
-  test_template<::test_template<int>> v(test_template<int>(12));
-}
-{
-  // Unicode literals
-  char const *utf8 = u8"UTF-8 string \u2500";
-  char16_t const *utf16 = u"UTF-8 string \u2500";
-  char32_t const *utf32 = U"UTF-32 string \u2500";
-}
-'
-
-# Test code for whether the C compiler supports C++11 (complete).
-ac_cxx_conftest_cxx11_program="${ac_cxx_conftest_cxx98_globals}
-${ac_cxx_conftest_cxx11_globals}
-
-int
-main (int argc, char **argv)
-{
-  int ok = 0;
-  ${ac_cxx_conftest_cxx98_main}
-  ${ac_cxx_conftest_cxx11_main}
-  return ok;
-}
-"
-
-# Test code for whether the C compiler supports C++98 (complete).
-ac_cxx_conftest_cxx98_program="${ac_cxx_conftest_cxx98_globals}
-int
-main (int argc, char **argv)
-{
-  int ok = 0;
-  ${ac_cxx_conftest_cxx98_main}
-  return ok;
-}
-"
-
 
 # Auxiliary files required by this configure script.
 ac_aux_files="install-sh config.guess config.sub ltmain.sh"
@@ -3352,7 +3263,7 @@ ac_aux_dir_candidates="${srcdir}/build-scripts"
 # $ac_aux_dir_candidates and give up.
 ac_missing_aux_files=""
 ac_first_candidate=:
-printf "%s\n" "$as_me:${as_lineno-$LINENO}: looking for aux files: $ac_aux_files" >&5
+printf '%s\n' "$as_me:${as_lineno-$LINENO}: looking for aux files: $ac_aux_files" >&5
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 as_found=false
 for as_dir in $ac_aux_dir_candidates
@@ -3365,7 +3276,7 @@ do
   esac
   as_found=:
 
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}:  trying $as_dir" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}:  trying $as_dir" >&5
   ac_aux_dir_found=yes
   ac_install_sh=
   for ac_aux in $ac_aux_files
@@ -3376,13 +3287,13 @@ do
     if test x"$ac_aux" = x"install-sh"
     then
       if test -f "${as_dir}install-sh"; then
-        printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}install-sh found" >&5
+        printf '%s\n' "$as_me:${as_lineno-$LINENO}:   ${as_dir}install-sh found" >&5
         ac_install_sh="${as_dir}install-sh -c"
       elif test -f "${as_dir}install.sh"; then
-        printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}install.sh found" >&5
+        printf '%s\n' "$as_me:${as_lineno-$LINENO}:   ${as_dir}install.sh found" >&5
         ac_install_sh="${as_dir}install.sh -c"
       elif test -f "${as_dir}shtool"; then
-        printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}shtool found" >&5
+        printf '%s\n' "$as_me:${as_lineno-$LINENO}:   ${as_dir}shtool found" >&5
         ac_install_sh="${as_dir}shtool install -c"
       else
         ac_aux_dir_found=no
@@ -3394,7 +3305,7 @@ do
       fi
     else
       if test -f "${as_dir}${ac_aux}"; then
-        printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}${ac_aux} found" >&5
+        printf '%s\n' "$as_me:${as_lineno-$LINENO}:   ${as_dir}${ac_aux} found" >&5
       else
         ac_aux_dir_found=no
         if $ac_first_candidate; then
@@ -3417,8 +3328,9 @@ IFS=$as_save_IFS
 if $as_found
 then :
 
-else $as_nop
-  as_fn_error $? "cannot find required auxiliary files:$ac_missing_aux_files" "$LINENO" 5
+else case e in #(
+  e) as_fn_error $? "cannot find required auxiliary files:$ac_missing_aux_files" "$LINENO" 5 ;;
+esac
 fi
 
 
@@ -3446,38 +3358,44 @@ for ac_var in $ac_precious_vars; do
   eval ac_new_val=\$ac_env_${ac_var}_value
   case $ac_old_set,$ac_new_set in
     set,)
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
-printf "%s\n" "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
+      { printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: '$ac_var' was set to '$ac_old_val' in the previous run" >&5
+printf '%s\n' "$as_me: error: '$ac_var' was set to '$ac_old_val' in the previous run" >&2;}
       ac_cache_corrupted=: ;;
     ,set)
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
-printf "%s\n" "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
+      { printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: '$ac_var' was not set in the previous run" >&5
+printf '%s\n' "$as_me: error: '$ac_var' was not set in the previous run" >&2;}
       ac_cache_corrupted=: ;;
     ,);;
     *)
       if test "x$ac_old_val" != "x$ac_new_val"; then
 	# differences in whitespace do not lead to failure.
-	ac_old_val_w=`echo x $ac_old_val`
-	ac_new_val_w=`echo x $ac_new_val`
+	ac_old_val_w=
+	for ac_val in x $ac_old_val; do
+	  ac_old_val_w="$ac_old_val_w $ac_val"
+	done
+	ac_new_val_w=
+	for ac_val in x $ac_new_val; do
+	  ac_new_val_w="$ac_new_val_w $ac_val"
+	done
 	if test "$ac_old_val_w" != "$ac_new_val_w"; then
-	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
-printf "%s\n" "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
+	  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: '$ac_var' has changed since the previous run:" >&5
+printf '%s\n' "$as_me: error: '$ac_var' has changed since the previous run:" >&2;}
 	  ac_cache_corrupted=:
 	else
-	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
-printf "%s\n" "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
+	  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in '$ac_var' since the previous run:" >&5
+printf '%s\n' "$as_me: warning: ignoring whitespace changes in '$ac_var' since the previous run:" >&2;}
 	  eval $ac_var=\$ac_old_val
 	fi
-	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
-printf "%s\n" "$as_me:   former value:  \`$ac_old_val'" >&2;}
-	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
-printf "%s\n" "$as_me:   current value: \`$ac_new_val'" >&2;}
+	{ printf '%s\n' "$as_me:${as_lineno-$LINENO}:   former value:  '$ac_old_val'" >&5
+printf '%s\n' "$as_me:   former value:  '$ac_old_val'" >&2;}
+	{ printf '%s\n' "$as_me:${as_lineno-$LINENO}:   current value: '$ac_new_val'" >&5
+printf '%s\n' "$as_me:   current value: '$ac_new_val'" >&2;}
       fi;;
   esac
   # Pass precious variables to config.status.
   if test "$ac_new_set" = set; then
     case $ac_new_val in
-    *\'*) ac_arg=$ac_var=`printf "%s\n" "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
+    *\'*) ac_arg=$ac_var=`printf '%s\n' "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
     *) ac_arg=$ac_var=$ac_new_val ;;
     esac
     case " $ac_configure_args " in
@@ -3487,17 +3405,34 @@ printf "%s\n" "$as_me:   current value: \`$ac_new_val'" >&2;}
   fi
 done
 if $ac_cache_corrupted; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
-printf "%s\n" "$as_me: error: changes in the environment can compromise the build" >&2;}
-  as_fn_error $? "run \`${MAKE-make} distclean' and/or \`rm $cache_file'
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf '%s\n' "$as_me: error: in '$ac_pwd':" >&2;}
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
+printf '%s\n' "$as_me: error: changes in the environment can compromise the build" >&2;}
+  as_fn_error $? "run '${MAKE-make} distclean' and/or 'rm $cache_file'
 	    and start over" "$LINENO" 5
 fi
 ## -------------------- ##
 ## Main body of script. ##
 ## -------------------- ##
 
+
+# Determine whether it's possible to make 'echo' print without a newline.
+# These variables are no longer used directly by Autoconf, but are AC_SUBSTed
+# for compatibility with existing Makefiles.
+ECHO_C= ECHO_N= ECHO_T=
+case `echo -n x` in #(((((
+-n*)
+  case `echo 'xy\c'` in
+  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
+  xy)  ECHO_C='\c';;
+  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
+       ECHO_T='	';;
+  esac;;
+*)
+  ECHO_N='-n';;
+esac
+
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ -3541,8 +3476,8 @@ esac
 
 case `pwd` in
   *\ * | *\	*)
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: Libtool does not cope well with whitespace in \`pwd\`" >&5
-printf "%s\n" "$as_me: WARNING: Libtool does not cope well with whitespace in \`pwd\`" >&2;} ;;
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: Libtool does not cope well with whitespace in \`pwd\`" >&5
+printf '%s\n' "$as_me: WARNING: Libtool does not cope well with whitespace in \`pwd\`" >&2;} ;;
 esac
 
 
@@ -3571,23 +3506,24 @@ ltmain=$ac_aux_dir/ltmain.sh
 $SHELL "${ac_aux_dir}config.sub" sun4 >/dev/null 2>&1 ||
   as_fn_error $? "cannot run $SHELL ${ac_aux_dir}config.sub" "$LINENO" 5
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking build system type" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking build system type" >&5
 printf %s "checking build system type... " >&6; }
 if test ${ac_cv_build+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_build_alias=$build_alias
+else case e in #(
+  e) ac_build_alias=$build_alias
 test "x$ac_build_alias" = x &&
   ac_build_alias=`$SHELL "${ac_aux_dir}config.guess"`
 test "x$ac_build_alias" = x &&
   as_fn_error $? "cannot guess build type; you must specify one" "$LINENO" 5
 ac_cv_build=`$SHELL "${ac_aux_dir}config.sub" $ac_build_alias` ||
   as_fn_error $? "$SHELL ${ac_aux_dir}config.sub $ac_build_alias failed" "$LINENO" 5
-
+ ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
-printf "%s\n" "$ac_cv_build" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
+printf '%s\n' "$ac_cv_build" >&6; }
 case $ac_cv_build in
 *-*-*) ;;
 *) as_fn_error $? "invalid value of canonical build" "$LINENO" 5;;
@@ -3603,25 +3539,26 @@ shift; shift
 # except with old shells:
 build_os=$*
 IFS=$ac_save_IFS
-case $build_os in *\ *) build_os=`echo "$build_os" | sed 's/ /-/g'`;; esac
+case $build_os in *\ *) build_os=`printf '%s\n' "$build_os" | sed 's/ /-/g'`;; esac
 
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking host system type" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking host system type" >&5
 printf %s "checking host system type... " >&6; }
 if test ${ac_cv_host+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "x$host_alias" = x; then
+else case e in #(
+  e) if test "x$host_alias" = x; then
   ac_cv_host=$ac_cv_build
 else
   ac_cv_host=`$SHELL "${ac_aux_dir}config.sub" $host_alias` ||
     as_fn_error $? "$SHELL ${ac_aux_dir}config.sub $host_alias failed" "$LINENO" 5
 fi
-
+ ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5
-printf "%s\n" "$ac_cv_host" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5
+printf '%s\n' "$ac_cv_host" >&6; }
 case $ac_cv_host in
 *-*-*) ;;
 *) as_fn_error $? "invalid value of canonical host" "$LINENO" 5;;
@@ -3637,7 +3574,7 @@ shift; shift
 # except with old shells:
 host_os=$*
 IFS=$ac_save_IFS
-case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac
+case $host_os in *\ *) host_os=`printf '%s\n' "$host_os" | sed 's/ /-/g'`;; esac
 
 
 # Backslashify metacharacters that are still active within
@@ -3661,7 +3598,7 @@ ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
 ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO
 ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking how to print strings" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking how to print strings" >&5
 printf %s "checking how to print strings... " >&6; }
 # Test print first, because it will be a builtin if present.
 if test "X`( print -r -- -n ) 2>/dev/null`" = X-n && \
@@ -3688,12 +3625,12 @@ func_echo_all ()
 }
 
 case $ECHO in
-  printf*) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: printf" >&5
-printf "%s\n" "printf" >&6; } ;;
-  print*) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: print -r" >&5
-printf "%s\n" "print -r" >&6; } ;;
-  *) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: cat" >&5
-printf "%s\n" "cat" >&6; } ;;
+  printf*) { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: printf" >&5
+printf '%s\n' "printf" >&6; } ;;
+  print*) { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: print -r" >&5
+printf '%s\n' "print -r" >&6; } ;;
+  *) { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: cat" >&5
+printf '%s\n' "cat" >&6; } ;;
 esac
 
 
@@ -3714,6 +3651,9 @@ esac
 
 
 
+
+
+
 
 
 
@@ -3726,13 +3666,13 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
 set dummy ${ac_tool_prefix}gcc; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC"; then
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -3747,22 +3687,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="${ac_tool_prefix}gcc"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
-printf "%s\n" "$CC" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf '%s\n' "$CC" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -3771,13 +3712,13 @@ if test -z "$ac_cv_prog_CC"; then
   ac_ct_CC=$CC
   # Extract the first word of "gcc", so it can be a program name with args.
 set dummy gcc; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_CC"; then
+else case e in #(
+  e) if test -n "$ac_ct_CC"; then
   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -3792,22 +3733,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_CC="gcc"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
-printf "%s\n" "$ac_ct_CC" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+printf '%s\n' "$ac_ct_CC" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
   if test "x$ac_ct_CC" = x; then
@@ -3815,8 +3757,8 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf '%s\n' "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     CC=$ac_ct_CC
@@ -3829,13 +3771,13 @@ if test -z "$CC"; then
           if test -n "$ac_tool_prefix"; then
     # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
 set dummy ${ac_tool_prefix}cc; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC"; then
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -3850,22 +3792,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="${ac_tool_prefix}cc"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
-printf "%s\n" "$CC" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf '%s\n' "$CC" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -3874,13 +3817,13 @@ fi
 if test -z "$CC"; then
   # Extract the first word of "cc", so it can be a program name with args.
 set dummy cc; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC"; then
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
   ac_prog_rejected=no
@@ -3900,7 +3843,7 @@ do
        continue
      fi
     ac_cv_prog_CC="cc"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -3919,15 +3862,16 @@ if test $ac_prog_rejected = yes; then
     ac_cv_prog_CC="$as_dir$ac_word${1+' '}$@"
   fi
 fi
-fi
+fi ;;
+esac
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
-printf "%s\n" "$CC" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf '%s\n' "$CC" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -3938,13 +3882,13 @@ if test -z "$CC"; then
   do
     # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
 set dummy $ac_tool_prefix$ac_prog; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC"; then
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -3959,22 +3903,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
-printf "%s\n" "$CC" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf '%s\n' "$CC" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -3987,13 +3932,13 @@ if test -z "$CC"; then
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_CC"; then
+else case e in #(
+  e) if test -n "$ac_ct_CC"; then
   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -4008,22 +3953,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_CC="$ac_prog"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
-printf "%s\n" "$ac_ct_CC" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+printf '%s\n' "$ac_ct_CC" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -4035,8 +3981,8 @@ done
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf '%s\n' "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     CC=$ac_ct_CC
@@ -4048,13 +3994,13 @@ if test -z "$CC"; then
   if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}clang", so it can be a program name with args.
 set dummy ${ac_tool_prefix}clang; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC"; then
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -4069,22 +4015,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="${ac_tool_prefix}clang"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
-printf "%s\n" "$CC" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf '%s\n' "$CC" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -4093,13 +4040,13 @@ if test -z "$ac_cv_prog_CC"; then
   ac_ct_CC=$CC
   # Extract the first word of "clang", so it can be a program name with args.
 set dummy clang; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_CC"; then
+else case e in #(
+  e) if test -n "$ac_ct_CC"; then
   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -4114,22 +4061,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_CC="clang"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
-printf "%s\n" "$ac_ct_CC" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+printf '%s\n' "$ac_ct_CC" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
   if test "x$ac_ct_CC" = x; then
@@ -4137,8 +4085,8 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf '%s\n' "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     CC=$ac_ct_CC
@@ -4150,13 +4098,13 @@ fi
 fi
 
 
-test -z "$CC" && { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+test -z "$CC" && { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf '%s\n' "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "no acceptable C compiler found in \$PATH
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
 
 # Provide some information about the compiler.
-printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
+printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
 set X $ac_compile
 ac_compiler=$2
 for ac_option in --version -v -V -qversion -version; do
@@ -4166,7 +4114,7 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-printf "%s\n" "$ac_try_echo"; } >&5
+printf '%s\n' "$ac_try_echo"; } >&5
   (eval "$ac_compiler $ac_option >&5") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
@@ -4176,7 +4124,7 @@ printf "%s\n" "$ac_try_echo"; } >&5
     cat conftest.er1 >&5
   fi
   rm -f conftest.er1 conftest.err
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }
 done
 
@@ -4196,9 +4144,9 @@ ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out"
 # Try to create an executable without -o first, disregard a.out.
 # It will help us diagnose broken compilers, and finding out an intuition
 # of exeext.
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5
 printf %s "checking whether the C compiler works... " >&6; }
-ac_link_default=`printf "%s\n" "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
+ac_link_default=`printf '%s\n' "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
 
 # The possible output files:
 ac_files="a.out conftest.exe conftest a.exe a_out.exe b.out conftest.*"
@@ -4219,14 +4167,14 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-printf "%s\n" "$ac_try_echo"; } >&5
+printf '%s\n' "$ac_try_echo"; } >&5
   (eval "$ac_link_default") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }
 then :
-  # Autoconf-2.13 could set the ac_cv_exeext variable to `no'.
-# So ignore a value of `no', otherwise this would lead to `EXEEXT = no'
+  # Autoconf-2.13 could set the ac_cv_exeext variable to 'no'.
+# So ignore a value of 'no', otherwise this would lead to 'EXEEXT = no'
 # in a Makefile.  We should not override ac_cv_exeext if it was cached,
 # so that the user can short-circuit this test for compilers unknown to
 # Autoconf.
@@ -4246,7 +4194,7 @@ do
 	   ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
 	fi
 	# We set ac_cv_exeext here because the later test for it is not
-	# safe: cross compilers may not add the suffix if given an `-o'
+	# safe: cross compilers may not add the suffix if given an '-o'
 	# argument, so we may need to know it at that point already.
 	# Even if this section looks crufty: it has the advantage of
 	# actually working.
@@ -4257,33 +4205,35 @@ do
 done
 test "$ac_cv_exeext" = no && ac_cv_exeext=
 
-else $as_nop
-  ac_file=''
+else case e in #(
+  e) ac_file='' ;;
+esac
 fi
 if test -z "$ac_file"
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
-printf "%s\n" "$as_me: failed program was:" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
+printf '%s\n' "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+{ { printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf '%s\n' "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error 77 "C compiler cannot create executables
-See \`config.log' for more details" "$LINENO" 5; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+See 'config.log' for more details" "$LINENO" 5; }
+else case e in #(
+  e) { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf '%s\n' "yes" >&6; } ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
 printf %s "checking for C compiler default output file name... " >&6; }
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5
-printf "%s\n" "$ac_file" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5
+printf '%s\n' "$ac_file" >&6; }
 ac_exeext=$ac_cv_exeext
 
 rm -f -r a.out a.out.dSYM a.exe conftest$ac_cv_exeext b.out
 ac_clean_files=$ac_clean_files_save
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5
 printf %s "checking for suffix of executables... " >&6; }
 if { { ac_try="$ac_link"
 case "(($ac_try" in
@@ -4291,16 +4241,16 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-printf "%s\n" "$ac_try_echo"; } >&5
+printf '%s\n' "$ac_try_echo"; } >&5
   (eval "$ac_link") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }
 then :
-  # If both `conftest.exe' and `conftest' are `present' (well, observable)
-# catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
-# work properly (i.e., refer to `conftest.exe'), while it won't with
-# `rm'.
+  # If both 'conftest.exe' and 'conftest' are 'present' (well, observable)
+# catch 'conftest.exe'.  For instance with Cygwin, 'ls conftest' will
+# work properly (i.e., refer to 'conftest.exe'), while it won't with
+# 'rm'.
 for ac_file in conftest.exe conftest conftest.*; do
   test -f "$ac_file" || continue
   case $ac_file in
@@ -4310,15 +4260,16 @@ for ac_file in conftest.exe conftest conftest.*; do
     * ) break;;
   esac
 done
-else $as_nop
-  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+else case e in #(
+  e) { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf '%s\n' "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "cannot compute suffix of executables: cannot compile and link
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; } ;;
+esac
 fi
 rm -f conftest conftest$ac_cv_exeext
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
-printf "%s\n" "$ac_cv_exeext" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
+printf '%s\n' "$ac_cv_exeext" >&6; }
 
 rm -f conftest.$ac_ext
 EXEEXT=$ac_cv_exeext
@@ -4330,6 +4281,8 @@ int
 main (void)
 {
 FILE *f = fopen ("conftest.out", "w");
+ if (!f)
+  return 1;
  return ferror (f) || fclose (f) != 0;
 
   ;
@@ -4339,7 +4292,7 @@ _ACEOF
 ac_clean_files="$ac_clean_files conftest.out"
 # Check that the compiler produces executables we can run.  If not, either
 # the compiler is broken, or we cross compile.
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5
 printf %s "checking whether we are cross compiling... " >&6; }
 if test "$cross_compiling" != yes; then
   { { ac_try="$ac_link"
@@ -4348,10 +4301,10 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-printf "%s\n" "$ac_try_echo"; } >&5
+printf '%s\n' "$ac_try_echo"; } >&5
   (eval "$ac_link") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }
   if { ac_try='./conftest$ac_cv_exeext'
   { { case "(($ac_try" in
@@ -4359,36 +4312,37 @@ printf "%s\n" "$ac_try_echo"; } >&5
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-printf "%s\n" "$ac_try_echo"; } >&5
+printf '%s\n' "$ac_try_echo"; } >&5
   (eval "$ac_try") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; }; then
     cross_compiling=no
   else
     if test "$cross_compiling" = maybe; then
 	cross_compiling=yes
     else
-	{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+	{ { printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf '%s\n' "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error 77 "cannot run C compiled programs.
-If you meant to cross compile, use \`--host'.
-See \`config.log' for more details" "$LINENO" 5; }
+If you meant to cross compile, use '--host'.
+See 'config.log' for more details" "$LINENO" 5; }
     fi
   fi
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
-printf "%s\n" "$cross_compiling" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
+printf '%s\n' "$cross_compiling" >&6; }
 
-rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out
+rm -f conftest.$ac_ext conftest$ac_cv_exeext \
+  conftest.o conftest.obj conftest.out
 ac_clean_files=$ac_clean_files_save
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
 printf %s "checking for suffix of object files... " >&6; }
 if test ${ac_cv_objext+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -4406,10 +4360,10 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-printf "%s\n" "$ac_try_echo"; } >&5
+printf '%s\n' "$ac_try_echo"; } >&5
   (eval "$ac_compile") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }
 then :
   for ac_file in conftest.o conftest.obj conftest.*; do
@@ -4420,28 +4374,30 @@ then :
        break;;
   esac
 done
-else $as_nop
-  printf "%s\n" "$as_me: failed program was:" >&5
+else case e in #(
+  e) printf '%s\n' "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+{ { printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf '%s\n' "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "cannot compute suffix of object files: cannot compile
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; } ;;
+esac
 fi
-rm -f conftest.$ac_cv_objext conftest.$ac_ext
+rm -f conftest.$ac_cv_objext conftest.$ac_ext ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
-printf "%s\n" "$ac_cv_objext" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
+printf '%s\n' "$ac_cv_objext" >&6; }
 OBJEXT=$ac_cv_objext
 ac_objext=$OBJEXT
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports GNU C" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports GNU C" >&5
 printf %s "checking whether the compiler supports GNU C... " >&6; }
 if test ${ac_cv_c_compiler_gnu+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -4458,15 +4414,17 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_compiler_gnu=yes
-else $as_nop
-  ac_compiler_gnu=no
+else case e in #(
+  e) ac_compiler_gnu=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 ac_cv_c_compiler_gnu=$ac_compiler_gnu
-
+ ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
-printf "%s\n" "$ac_cv_c_compiler_gnu" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
+printf '%s\n' "$ac_cv_c_compiler_gnu" >&6; }
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 if test $ac_compiler_gnu = yes; then
@@ -4476,13 +4434,13 @@ else
 fi
 ac_test_CFLAGS=${CFLAGS+y}
 ac_save_CFLAGS=$CFLAGS
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
 printf %s "checking whether $CC accepts -g... " >&6; }
 if test ${ac_cv_prog_cc_g+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_save_c_werror_flag=$ac_c_werror_flag
+else case e in #(
+  e) ac_save_c_werror_flag=$ac_c_werror_flag
    ac_c_werror_flag=yes
    ac_cv_prog_cc_g=no
    CFLAGS="-g"
@@ -4500,8 +4458,8 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_prog_cc_g=yes
-else $as_nop
-  CFLAGS=""
+else case e in #(
+  e) CFLAGS=""
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -4516,8 +4474,8 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
 
-else $as_nop
-  ac_c_werror_flag=$ac_save_c_werror_flag
+else case e in #(
+  e) ac_c_werror_flag=$ac_save_c_werror_flag
 	 CFLAGS="-g"
 	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -4534,15 +4492,18 @@ if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_prog_cc_g=yes
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+   ac_c_werror_flag=$ac_save_c_werror_flag ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-   ac_c_werror_flag=$ac_save_c_werror_flag
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
-printf "%s\n" "$ac_cv_prog_cc_g" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
+printf '%s\n' "$ac_cv_prog_cc_g" >&6; }
 if test $ac_test_CFLAGS; then
   CFLAGS=$ac_save_CFLAGS
 elif test $ac_cv_prog_cc_g = yes; then
@@ -4561,19 +4522,68 @@ fi
 ac_prog_cc_stdc=no
 if test x$ac_prog_cc_stdc = xno
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C11 features" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C23 features" >&5
+printf %s "checking for $CC option to enable C23 features... " >&6; }
+if test ${ac_cv_prog_cc_c23+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_cv_prog_cc_c23=no
+ac_save_CC=$CC
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$ac_c_conftest_c23_program
+_ACEOF
+for ac_arg in '' -std=gnu23
+do
+  CC="$ac_save_CC $ac_arg"
+  if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_prog_cc_c23=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam
+  test "x$ac_cv_prog_cc_c23" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CC=$ac_save_CC ;;
+esac
+fi
+
+if test "x$ac_cv_prog_cc_c23" = xno
+then :
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+printf '%s\n' "unsupported" >&6; }
+else case e in #(
+  e) if test "x$ac_cv_prog_cc_c23" = x
+then :
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+printf '%s\n' "none needed" >&6; }
+else case e in #(
+  e) { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c23" >&5
+printf '%s\n' "$ac_cv_prog_cc_c23" >&6; }
+     CC="$CC $ac_cv_prog_cc_c23" ;;
+esac
+fi
+  ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c23
+  ac_prog_cc_stdc=c23 ;;
+esac
+fi
+fi
+if test x$ac_prog_cc_stdc = xno
+then :
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C11 features" >&5
 printf %s "checking for $CC option to enable C11 features... " >&6; }
 if test ${ac_cv_prog_cc_c11+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_prog_cc_c11=no
+else case e in #(
+  e) ac_cv_prog_cc_c11=no
 ac_save_CC=$CC
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $ac_c_conftest_c11_program
 _ACEOF
-for ac_arg in '' -std=gnu11
+for ac_arg in '' -std=gnu11 -std:c11
 do
   CC="$ac_save_CC $ac_arg"
   if ac_fn_c_try_compile "$LINENO"
@@ -4584,36 +4594,39 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam
   test "x$ac_cv_prog_cc_c11" != "xno" && break
 done
 rm -f conftest.$ac_ext
-CC=$ac_save_CC
+CC=$ac_save_CC ;;
+esac
 fi
 
 if test "x$ac_cv_prog_cc_c11" = xno
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
-printf "%s\n" "unsupported" >&6; }
-else $as_nop
-  if test "x$ac_cv_prog_cc_c11" = x
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+printf '%s\n' "unsupported" >&6; }
+else case e in #(
+  e) if test "x$ac_cv_prog_cc_c11" = x
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
-printf "%s\n" "none needed" >&6; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c11" >&5
-printf "%s\n" "$ac_cv_prog_cc_c11" >&6; }
-     CC="$CC $ac_cv_prog_cc_c11"
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+printf '%s\n' "none needed" >&6; }
+else case e in #(
+  e) { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c11" >&5
+printf '%s\n' "$ac_cv_prog_cc_c11" >&6; }
+     CC="$CC $ac_cv_prog_cc_c11" ;;
+esac
 fi
   ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c11
-  ac_prog_cc_stdc=c11
+  ac_prog_cc_stdc=c11 ;;
+esac
 fi
 fi
 if test x$ac_prog_cc_stdc = xno
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C99 features" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C99 features" >&5
 printf %s "checking for $CC option to enable C99 features... " >&6; }
 if test ${ac_cv_prog_cc_c99+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_prog_cc_c99=no
+else case e in #(
+  e) ac_cv_prog_cc_c99=no
 ac_save_CC=$CC
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -4630,36 +4643,39 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam
   test "x$ac_cv_prog_cc_c99" != "xno" && break
 done
 rm -f conftest.$ac_ext
-CC=$ac_save_CC
+CC=$ac_save_CC ;;
+esac
 fi
 
 if test "x$ac_cv_prog_cc_c99" = xno
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
-printf "%s\n" "unsupported" >&6; }
-else $as_nop
-  if test "x$ac_cv_prog_cc_c99" = x
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+printf '%s\n' "unsupported" >&6; }
+else case e in #(
+  e) if test "x$ac_cv_prog_cc_c99" = x
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
-printf "%s\n" "none needed" >&6; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c99" >&5
-printf "%s\n" "$ac_cv_prog_cc_c99" >&6; }
-     CC="$CC $ac_cv_prog_cc_c99"
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+printf '%s\n' "none needed" >&6; }
+else case e in #(
+  e) { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c99" >&5
+printf '%s\n' "$ac_cv_prog_cc_c99" >&6; }
+     CC="$CC $ac_cv_prog_cc_c99" ;;
+esac
 fi
   ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c99
-  ac_prog_cc_stdc=c99
+  ac_prog_cc_stdc=c99 ;;
+esac
 fi
 fi
 if test x$ac_prog_cc_stdc = xno
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C89 features" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C89 features" >&5
 printf %s "checking for $CC option to enable C89 features... " >&6; }
 if test ${ac_cv_prog_cc_c89+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_prog_cc_c89=no
+else case e in #(
+  e) ac_cv_prog_cc_c89=no
 ac_save_CC=$CC
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -4676,25 +4692,28 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam
   test "x$ac_cv_prog_cc_c89" != "xno" && break
 done
 rm -f conftest.$ac_ext
-CC=$ac_save_CC
+CC=$ac_save_CC ;;
+esac
 fi
 
 if test "x$ac_cv_prog_cc_c89" = xno
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
-printf "%s\n" "unsupported" >&6; }
-else $as_nop
-  if test "x$ac_cv_prog_cc_c89" = x
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+printf '%s\n' "unsupported" >&6; }
+else case e in #(
+  e) if test "x$ac_cv_prog_cc_c89" = x
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
-printf "%s\n" "none needed" >&6; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
-printf "%s\n" "$ac_cv_prog_cc_c89" >&6; }
-     CC="$CC $ac_cv_prog_cc_c89"
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+printf '%s\n' "none needed" >&6; }
+else case e in #(
+  e) { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
+printf '%s\n' "$ac_cv_prog_cc_c89" >&6; }
+     CC="$CC $ac_cv_prog_cc_c89" ;;
+esac
 fi
   ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c89
-  ac_prog_cc_stdc=c89
+  ac_prog_cc_stdc=c89 ;;
+esac
 fi
 fi
 
@@ -4704,13 +4723,13 @@ ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for a sed that does not truncate output" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for a sed that does not truncate output" >&5
 printf %s "checking for a sed that does not truncate output... " >&6; }
 if test ${ac_cv_path_SED+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-            ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
+else case e in #(
+  e)           ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
      for ac_i in 1 2 3 4 5 6 7; do
        ac_script="$ac_script$as_nl$ac_script"
      done
@@ -4735,9 +4754,10 @@ do
       as_fn_executable_p "$ac_path_SED" || continue
 # Check for GNU ac_path_SED and select it if it is found.
   # Check for GNU $ac_path_SED
-case `"$ac_path_SED" --version 2>&1` in
+case `"$ac_path_SED" --version 2>&1` in #(
 *GNU*)
   ac_cv_path_SED="$ac_path_SED" ac_path_SED_found=:;;
+#(
 *)
   ac_count=0
   printf %s 0123456789 >"conftest.in"
@@ -4746,7 +4766,7 @@ case `"$ac_path_SED" --version 2>&1` in
     cat "conftest.in" "conftest.in" >"conftest.tmp"
     mv "conftest.tmp" "conftest.in"
     cp "conftest.in" "conftest.nl"
-    printf "%s\n" '' >> "conftest.nl"
+    printf '%s\n' '' >> "conftest.nl"
     "$ac_path_SED" -f conftest.sed < "conftest.nl" >"conftest.out" 2>/dev/null || break
     diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
     as_fn_arith $ac_count + 1 && ac_count=$as_val
@@ -4772,10 +4792,11 @@ IFS=$as_save_IFS
 else
   ac_cv_path_SED=$SED
 fi
-
+ ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_SED" >&5
-printf "%s\n" "$ac_cv_path_SED" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_SED" >&5
+printf '%s\n' "$ac_cv_path_SED" >&6; }
  SED="$ac_cv_path_SED"
   rm -f conftest.sed
 
@@ -4792,13 +4813,13 @@ Xsed="$SED -e 1s/^X//"
 
 
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
 printf %s "checking for grep that handles long lines and -e... " >&6; }
 if test ${ac_cv_path_GREP+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -z "$GREP"; then
+else case e in #(
+  e) if test -z "$GREP"; then
   ac_path_GREP_found=false
   # Loop through the user's path and test for each of PROGNAME-LIST
   as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -4817,9 +4838,10 @@ do
       as_fn_executable_p "$ac_path_GREP" || continue
 # Check for GNU ac_path_GREP and select it if it is found.
   # Check for GNU $ac_path_GREP
-case `"$ac_path_GREP" --version 2>&1` in
+case `"$ac_path_GREP" --version 2>&1` in #(
 *GNU*)
   ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
+#(
 *)
   ac_count=0
   printf %s 0123456789 >"conftest.in"
@@ -4828,7 +4850,7 @@ case `"$ac_path_GREP" --version 2>&1` in
     cat "conftest.in" "conftest.in" >"conftest.tmp"
     mv "conftest.tmp" "conftest.in"
     cp "conftest.in" "conftest.nl"
-    printf "%s\n" 'GREP' >> "conftest.nl"
+    printf '%s\n' 'GREP' >> "conftest.nl"
     "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
     diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
     as_fn_arith $ac_count + 1 && ac_count=$as_val
@@ -4854,20 +4876,21 @@ IFS=$as_save_IFS
 else
   ac_cv_path_GREP=$GREP
 fi
-
+ ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
-printf "%s\n" "$ac_cv_path_GREP" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
+printf '%s\n' "$ac_cv_path_GREP" >&6; }
  GREP="$ac_cv_path_GREP"
 
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
 printf %s "checking for egrep... " >&6; }
 if test ${ac_cv_path_EGREP+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
+else case e in #(
+  e) if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
    then ac_cv_path_EGREP="$GREP -E"
    else
      if test -z "$EGREP"; then
@@ -4889,9 +4912,10 @@ do
       as_fn_executable_p "$ac_path_EGREP" || continue
 # Check for GNU ac_path_EGREP and select it if it is found.
   # Check for GNU $ac_path_EGREP
-case `"$ac_path_EGREP" --version 2>&1` in
+case `"$ac_path_EGREP" --version 2>&1` in #(
 *GNU*)
   ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
+#(
 *)
   ac_count=0
   printf %s 0123456789 >"conftest.in"
@@ -4900,7 +4924,7 @@ case `"$ac_path_EGREP" --version 2>&1` in
     cat "conftest.in" "conftest.in" >"conftest.tmp"
     mv "conftest.tmp" "conftest.in"
     cp "conftest.in" "conftest.nl"
-    printf "%s\n" 'EGREP' >> "conftest.nl"
+    printf '%s\n' 'EGREP' >> "conftest.nl"
     "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
     diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
     as_fn_arith $ac_count + 1 && ac_count=$as_val
@@ -4927,20 +4951,23 @@ else
   ac_cv_path_EGREP=$EGREP
 fi
 
-   fi
+   fi ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
-printf "%s\n" "$ac_cv_path_EGREP" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
+printf '%s\n' "$ac_cv_path_EGREP" >&6; }
  EGREP="$ac_cv_path_EGREP"
 
+         EGREP_TRADITIONAL=$EGREP
+ ac_cv_path_EGREP_TRADITIONAL=$EGREP
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for fgrep" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for fgrep" >&5
 printf %s "checking for fgrep... " >&6; }
 if test ${ac_cv_path_FGREP+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if echo 'ab*c' | $GREP -F 'ab*c' >/dev/null 2>&1
+else case e in #(
+  e) if echo 'ab*c' | $GREP -F 'ab*c' >/dev/null 2>&1
    then ac_cv_path_FGREP="$GREP -F"
    else
      if test -z "$FGREP"; then
@@ -4962,9 +4989,10 @@ do
       as_fn_executable_p "$ac_path_FGREP" || continue
 # Check for GNU ac_path_FGREP and select it if it is found.
   # Check for GNU $ac_path_FGREP
-case `"$ac_path_FGREP" --version 2>&1` in
+case `"$ac_path_FGREP" --version 2>&1` in #(
 *GNU*)
   ac_cv_path_FGREP="$ac_path_FGREP" ac_path_FGREP_found=:;;
+#(
 *)
   ac_count=0
   printf %s 0123456789 >"conftest.in"
@@ -4973,7 +5001,7 @@ case `"$ac_path_FGREP" --version 2>&1` in
     cat "conftest.in" "conftest.in" >"conftest.tmp"
     mv "conftest.tmp" "conftest.in"
     cp "conftest.in" "conftest.nl"
-    printf "%s\n" 'FGREP' >> "conftest.nl"
+    printf '%s\n' 'FGREP' >> "conftest.nl"
     "$ac_path_FGREP" FGREP < "conftest.nl" >"conftest.out" 2>/dev/null || break
     diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
     as_fn_arith $ac_count + 1 && ac_count=$as_val
@@ -5000,10 +5028,11 @@ else
   ac_cv_path_FGREP=$FGREP
 fi
 
-   fi
+   fi ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_FGREP" >&5
-printf "%s\n" "$ac_cv_path_FGREP" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_FGREP" >&5
+printf '%s\n' "$ac_cv_path_FGREP" >&6; }
  FGREP="$ac_cv_path_FGREP"
 
 
@@ -5031,14 +5060,15 @@ test -z "$GREP" && GREP=grep
 if test ${with_gnu_ld+y}
 then :
   withval=$with_gnu_ld; test no = "$withval" || with_gnu_ld=yes
-else $as_nop
-  with_gnu_ld=no
+else case e in #(
+  e) with_gnu_ld=no ;;
+esac
 fi
 
 ac_prog=ld
 if test yes = "$GCC"; then
   # Check if gcc -print-prog-name=ld gives a path.
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ld used by $CC" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for ld used by $CC" >&5
 printf %s "checking for ld used by $CC... " >&6; }
   case $host in
   *-*-mingw* | *-*-windows*)
@@ -5068,17 +5098,17 @@ printf %s "checking for ld used by $CC... " >&6; }
     ;;
   esac
 elif test yes = "$with_gnu_ld"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GNU ld" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for GNU ld" >&5
 printf %s "checking for GNU ld... " >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for non-GNU ld" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for non-GNU ld" >&5
 printf %s "checking for non-GNU ld... " >&6; }
 fi
 if test ${lt_cv_path_LD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -z "$LD"; then
+else case e in #(
+  e) if test -z "$LD"; then
   lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
   for ac_dir in $PATH; do
     IFS=$lt_save_ifs
@@ -5101,25 +5131,26 @@ else $as_nop
   IFS=$lt_save_ifs
 else
   lt_cv_path_LD=$LD # Let the user override the test with a path.
-fi
+fi ;;
+esac
 fi
 
 LD=$lt_cv_path_LD
 if test -n "$LD"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $LD" >&5
-printf "%s\n" "$LD" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $LD" >&5
+printf '%s\n' "$LD" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 test -z "$LD" && as_fn_error $? "no acceptable ld found in \$PATH" "$LINENO" 5
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5
 printf %s "checking if the linker ($LD) is GNU ld... " >&6; }
 if test ${lt_cv_prog_gnu_ld+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  # I'd rather use --version here, but apparently some GNU lds only accept -v.
+else case e in #(
+  e) # I'd rather use --version here, but apparently some GNU lds only accept -v.
 case `$LD -v 2>&1 </dev/null` in
 *GNU* | *'with BFD'*)
   lt_cv_prog_gnu_ld=yes
@@ -5127,10 +5158,11 @@ case `$LD -v 2>&1 </dev/null` in
 *)
   lt_cv_prog_gnu_ld=no
   ;;
+esac ;;
 esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_gnu_ld" >&5
-printf "%s\n" "$lt_cv_prog_gnu_ld" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_gnu_ld" >&5
+printf '%s\n' "$lt_cv_prog_gnu_ld" >&6; }
 with_gnu_ld=$lt_cv_prog_gnu_ld
 
 
@@ -5141,13 +5173,13 @@ with_gnu_ld=$lt_cv_prog_gnu_ld
 
 
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for BSD- or MS-compatible name lister (nm)" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for BSD- or MS-compatible name lister (nm)" >&5
 printf %s "checking for BSD- or MS-compatible name lister (nm)... " >&6; }
 if test ${lt_cv_path_NM+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$NM"; then
+else case e in #(
+  e) if test -n "$NM"; then
   # Let the user override the test.
   lt_cv_path_NM=$NM
 else
@@ -5194,10 +5226,11 @@ else
     IFS=$lt_save_ifs
   done
   : ${lt_cv_path_NM=no}
+fi ;;
+esac
 fi
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_NM" >&5
-printf "%s\n" "$lt_cv_path_NM" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_NM" >&5
+printf '%s\n' "$lt_cv_path_NM" >&6; }
 if test no != "$lt_cv_path_NM"; then
   NM=$lt_cv_path_NM
 else
@@ -5210,13 +5243,13 @@ else
   do
     # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
 set dummy $ac_tool_prefix$ac_prog; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_DUMPBIN+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$DUMPBIN"; then
+else case e in #(
+  e) if test -n "$DUMPBIN"; then
   ac_cv_prog_DUMPBIN="$DUMPBIN" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -5231,22 +5264,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_DUMPBIN="$ac_tool_prefix$ac_prog"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 DUMPBIN=$ac_cv_prog_DUMPBIN
 if test -n "$DUMPBIN"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $DUMPBIN" >&5
-printf "%s\n" "$DUMPBIN" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $DUMPBIN" >&5
+printf '%s\n' "$DUMPBIN" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -5259,13 +5293,13 @@ if test -z "$DUMPBIN"; then
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_DUMPBIN+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_DUMPBIN"; then
+else case e in #(
+  e) if test -n "$ac_ct_DUMPBIN"; then
   ac_cv_prog_ac_ct_DUMPBIN="$ac_ct_DUMPBIN" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -5280,22 +5314,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_DUMPBIN="$ac_prog"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_DUMPBIN=$ac_cv_prog_ac_ct_DUMPBIN
 if test -n "$ac_ct_DUMPBIN"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DUMPBIN" >&5
-printf "%s\n" "$ac_ct_DUMPBIN" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DUMPBIN" >&5
+printf '%s\n' "$ac_ct_DUMPBIN" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -5307,8 +5342,8 @@ done
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf '%s\n' "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     DUMPBIN=$ac_ct_DUMPBIN
@@ -5336,13 +5371,13 @@ test -z "$NM" && NM=nm
 
 
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking the name lister ($NM) interface" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking the name lister ($NM) interface" >&5
 printf %s "checking the name lister ($NM) interface... " >&6; }
 if test ${lt_cv_nm_interface+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  lt_cv_nm_interface="BSD nm"
+else case e in #(
+  e) lt_cv_nm_interface="BSD nm"
   echo "int some_variable = 0;" > conftest.$ac_ext
   (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&5)
   (eval "$ac_compile" 2>conftest.err)
@@ -5355,30 +5390,31 @@ else $as_nop
   if $GREP 'External.*some_variable' conftest.out > /dev/null; then
     lt_cv_nm_interface="MS dumpbin"
   fi
-  rm -f conftest*
+  rm -f conftest* ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_nm_interface" >&5
-printf "%s\n" "$lt_cv_nm_interface" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_nm_interface" >&5
+printf '%s\n' "$lt_cv_nm_interface" >&6; }
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether ln -s works" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking whether ln -s works" >&5
 printf %s "checking whether ln -s works... " >&6; }
 LN_S=$as_ln_s
 if test "$LN_S" = "ln -s"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf '%s\n' "yes" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no, using $LN_S" >&5
-printf "%s\n" "no, using $LN_S" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no, using $LN_S" >&5
+printf '%s\n' "no, using $LN_S" >&6; }
 fi
 
 # find the maximum length of command line arguments
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking the maximum length of command line arguments" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking the maximum length of command line arguments" >&5
 printf %s "checking the maximum length of command line arguments... " >&6; }
 if test ${lt_cv_sys_max_cmd_len+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-    i=0
+else case e in #(
+  e)   i=0
   teststring=ABCD
 
   case $build_os in
@@ -5500,15 +5536,16 @@ else $as_nop
     fi
     ;;
   esac
-
+ ;;
+esac
 fi
 
 if test -n "$lt_cv_sys_max_cmd_len"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sys_max_cmd_len" >&5
-printf "%s\n" "$lt_cv_sys_max_cmd_len" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sys_max_cmd_len" >&5
+printf '%s\n' "$lt_cv_sys_max_cmd_len" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none" >&5
-printf "%s\n" "none" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: none" >&5
+printf '%s\n' "none" >&6; }
 fi
 max_cmd_len=$lt_cv_sys_max_cmd_len
 
@@ -5552,13 +5589,13 @@ esac
 
 
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to $host format" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to $host format" >&5
 printf %s "checking how to convert $build file names to $host format... " >&6; }
 if test ${lt_cv_to_host_file_cmd+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $host in
+else case e in #(
+  e) case $host in
   *-*-mingw* )
     case $build in
       *-*-mingw* | *-*-windows* ) # actually msys
@@ -5589,24 +5626,25 @@ else $as_nop
     lt_cv_to_host_file_cmd=func_convert_file_noop
     ;;
 esac
-
+ ;;
+esac
 fi
 
 to_host_file_cmd=$lt_cv_to_host_file_cmd
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_host_file_cmd" >&5
-printf "%s\n" "$lt_cv_to_host_file_cmd" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_host_file_cmd" >&5
+printf '%s\n' "$lt_cv_to_host_file_cmd" >&6; }
 
 
 
 
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to toolchain format" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to toolchain format" >&5
 printf %s "checking how to convert $build file names to toolchain format... " >&6; }
 if test ${lt_cv_to_tool_file_cmd+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  #assume ordinary cross tools, or native build.
+else case e in #(
+  e) #assume ordinary cross tools, or native build.
 lt_cv_to_tool_file_cmd=func_convert_file_noop
 case $host in
   *-*-mingw* | *-*-windows* )
@@ -5617,27 +5655,29 @@ case $host in
     esac
     ;;
 esac
-
+ ;;
+esac
 fi
 
 to_tool_file_cmd=$lt_cv_to_tool_file_cmd
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_tool_file_cmd" >&5
-printf "%s\n" "$lt_cv_to_tool_file_cmd" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_tool_file_cmd" >&5
+printf '%s\n' "$lt_cv_to_tool_file_cmd" >&6; }
 
 
 
 
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $LD option to reload object files" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $LD option to reload object files" >&5
 printf %s "checking for $LD option to reload object files... " >&6; }
 if test ${lt_cv_ld_reload_flag+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  lt_cv_ld_reload_flag='-r'
+else case e in #(
+  e) lt_cv_ld_reload_flag='-r' ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_reload_flag" >&5
-printf "%s\n" "$lt_cv_ld_reload_flag" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_reload_flag" >&5
+printf '%s\n' "$lt_cv_ld_reload_flag" >&6; }
 reload_flag=$lt_cv_ld_reload_flag
 case $reload_flag in
 "" | " "*) ;;
@@ -5670,13 +5710,13 @@ esac
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}objdump", so it can be a program name with args.
 set dummy ${ac_tool_prefix}objdump; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_OBJDUMP+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$OBJDUMP"; then
+else case e in #(
+  e) if test -n "$OBJDUMP"; then
   ac_cv_prog_OBJDUMP="$OBJDUMP" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -5691,22 +5731,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 OBJDUMP=$ac_cv_prog_OBJDUMP
 if test -n "$OBJDUMP"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5
-printf "%s\n" "$OBJDUMP" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5
+printf '%s\n' "$OBJDUMP" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -5715,13 +5756,13 @@ if test -z "$ac_cv_prog_OBJDUMP"; then
   ac_ct_OBJDUMP=$OBJDUMP
   # Extract the first word of "objdump", so it can be a program name with args.
 set dummy objdump; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_OBJDUMP+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_OBJDUMP"; then
+else case e in #(
+  e) if test -n "$ac_ct_OBJDUMP"; then
   ac_cv_prog_ac_ct_OBJDUMP="$ac_ct_OBJDUMP" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -5736,22 +5777,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_OBJDUMP="objdump"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_OBJDUMP=$ac_cv_prog_ac_ct_OBJDUMP
 if test -n "$ac_ct_OBJDUMP"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5
-printf "%s\n" "$ac_ct_OBJDUMP" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5
+printf '%s\n' "$ac_ct_OBJDUMP" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
   if test "x$ac_ct_OBJDUMP" = x; then
@@ -5759,8 +5801,8 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf '%s\n' "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     OBJDUMP=$ac_ct_OBJDUMP
@@ -5776,13 +5818,13 @@ test -z "$OBJDUMP" && OBJDUMP=objdump
 
 
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking how to recognize dependent libraries" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking how to recognize dependent libraries" >&5
 printf %s "checking how to recognize dependent libraries... " >&6; }
 if test ${lt_cv_deplibs_check_method+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  lt_cv_file_magic_cmd='$MAGIC_CMD'
+else case e in #(
+  e) lt_cv_file_magic_cmd='$MAGIC_CMD'
 lt_cv_file_magic_test_file=
 lt_cv_deplibs_check_method='unknown'
 # Need to set the preceding variable on all platforms that support
@@ -5977,10 +6019,11 @@ os2*)
   lt_cv_deplibs_check_method=pass_all
   ;;
 esac
-
+ ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_deplibs_check_method" >&5
-printf "%s\n" "$lt_cv_deplibs_check_method" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_deplibs_check_method" >&5
+printf '%s\n' "$lt_cv_deplibs_check_method" >&6; }
 
 file_magic_glob=
 want_nocaseglob=no
@@ -6024,13 +6067,13 @@ test -z "$deplibs_check_method" && deplibs_check_method=unknown
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}dlltool", so it can be a program name with args.
 set dummy ${ac_tool_prefix}dlltool; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_DLLTOOL+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$DLLTOOL"; then
+else case e in #(
+  e) if test -n "$DLLTOOL"; then
   ac_cv_prog_DLLTOOL="$DLLTOOL" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -6045,22 +6088,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_DLLTOOL="${ac_tool_prefix}dlltool"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 DLLTOOL=$ac_cv_prog_DLLTOOL
 if test -n "$DLLTOOL"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $DLLTOOL" >&5
-printf "%s\n" "$DLLTOOL" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $DLLTOOL" >&5
+printf '%s\n' "$DLLTOOL" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -6069,13 +6113,13 @@ if test -z "$ac_cv_prog_DLLTOOL"; then
   ac_ct_DLLTOOL=$DLLTOOL
   # Extract the first word of "dlltool", so it can be a program name with args.
 set dummy dlltool; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_DLLTOOL+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_DLLTOOL"; then
+else case e in #(
+  e) if test -n "$ac_ct_DLLTOOL"; then
   ac_cv_prog_ac_ct_DLLTOOL="$ac_ct_DLLTOOL" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -6090,22 +6134,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_DLLTOOL="dlltool"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_DLLTOOL=$ac_cv_prog_ac_ct_DLLTOOL
 if test -n "$ac_ct_DLLTOOL"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DLLTOOL" >&5
-printf "%s\n" "$ac_ct_DLLTOOL" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DLLTOOL" >&5
+printf '%s\n' "$ac_ct_DLLTOOL" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
   if test "x$ac_ct_DLLTOOL" = x; then
@@ -6113,8 +6158,8 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf '%s\n' "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     DLLTOOL=$ac_ct_DLLTOOL
@@ -6131,13 +6176,13 @@ test -z "$DLLTOOL" && DLLTOOL=dlltool
 
 
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking how to associate runtime and link libraries" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking how to associate runtime and link libraries" >&5
 printf %s "checking how to associate runtime and link libraries... " >&6; }
 if test ${lt_cv_sharedlib_from_linklib_cmd+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  lt_cv_sharedlib_from_linklib_cmd='unknown'
+else case e in #(
+  e) lt_cv_sharedlib_from_linklib_cmd='unknown'
 
 case $host_os in
 cygwin* | mingw* | windows* | pw32* | cegcc*)
@@ -6157,10 +6202,11 @@ cygwin* | mingw* | windows* | pw32* | cegcc*)
   lt_cv_sharedlib_from_linklib_cmd=$ECHO
   ;;
 esac
-
+ ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sharedlib_from_linklib_cmd" >&5
-printf "%s\n" "$lt_cv_sharedlib_from_linklib_cmd" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sharedlib_from_linklib_cmd" >&5
+printf '%s\n' "$lt_cv_sharedlib_from_linklib_cmd" >&6; }
 sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd
 test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO
 
@@ -6176,13 +6222,13 @@ if test -n "$ac_tool_prefix"; then
   do
     # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
 set dummy $ac_tool_prefix$ac_prog; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_AR+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$AR"; then
+else case e in #(
+  e) if test -n "$AR"; then
   ac_cv_prog_AR="$AR" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -6197,22 +6243,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_AR="$ac_tool_prefix$ac_prog"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 AR=$ac_cv_prog_AR
 if test -n "$AR"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
-printf "%s\n" "$AR" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
+printf '%s\n' "$AR" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -6225,13 +6272,13 @@ if test -z "$AR"; then
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_AR+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_AR"; then
+else case e in #(
+  e) if test -n "$ac_ct_AR"; then
   ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -6246,22 +6293,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_AR="$ac_prog"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_AR=$ac_cv_prog_ac_ct_AR
 if test -n "$ac_ct_AR"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5
-printf "%s\n" "$ac_ct_AR" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5
+printf '%s\n' "$ac_ct_AR" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -6273,8 +6321,8 @@ done
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf '%s\n' "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     AR=$ac_ct_AR
@@ -6294,13 +6342,13 @@ fi
 
 
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for archiver @FILE support" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for archiver @FILE support" >&5
 printf %s "checking for archiver @FILE support... " >&6; }
 if test ${lt_cv_ar_at_file+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  lt_cv_ar_at_file=no
+else case e in #(
+  e) lt_cv_ar_at_file=no
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -6319,7 +6367,7 @@ then :
       { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5
   (eval $lt_ar_try) 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }
       if test 0 -eq "$ac_status"; then
 	# Ensure the archiver fails upon bogus file names.
@@ -6327,7 +6375,7 @@ then :
 	{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5
   (eval $lt_ar_try) 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }
 	if test 0 -ne "$ac_status"; then
           lt_cv_ar_at_file=@
@@ -6337,10 +6385,11 @@ then :
 
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-
+   ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ar_at_file" >&5
-printf "%s\n" "$lt_cv_ar_at_file" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ar_at_file" >&5
+printf '%s\n' "$lt_cv_ar_at_file" >&6; }
 
 if test no = "$lt_cv_ar_at_file"; then
   archiver_list_spec=
@@ -6357,13 +6406,13 @@ fi
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
 set dummy ${ac_tool_prefix}strip; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_STRIP+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$STRIP"; then
+else case e in #(
+  e) if test -n "$STRIP"; then
   ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -6378,22 +6427,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_STRIP="${ac_tool_prefix}strip"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 STRIP=$ac_cv_prog_STRIP
 if test -n "$STRIP"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5
-printf "%s\n" "$STRIP" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5
+printf '%s\n' "$STRIP" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -6402,13 +6452,13 @@ if test -z "$ac_cv_prog_STRIP"; then
   ac_ct_STRIP=$STRIP
   # Extract the first word of "strip", so it can be a program name with args.
 set dummy strip; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_STRIP+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_STRIP"; then
+else case e in #(
+  e) if test -n "$ac_ct_STRIP"; then
   ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -6423,22 +6473,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_STRIP="strip"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
 if test -n "$ac_ct_STRIP"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5
-printf "%s\n" "$ac_ct_STRIP" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5
+printf '%s\n' "$ac_ct_STRIP" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
   if test "x$ac_ct_STRIP" = x; then
@@ -6446,8 +6497,8 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf '%s\n' "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     STRIP=$ac_ct_STRIP
@@ -6466,13 +6517,13 @@ test -z "$STRIP" && STRIP=:
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
 set dummy ${ac_tool_prefix}ranlib; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_RANLIB+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$RANLIB"; then
+else case e in #(
+  e) if test -n "$RANLIB"; then
   ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -6487,22 +6538,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 RANLIB=$ac_cv_prog_RANLIB
 if test -n "$RANLIB"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5
-printf "%s\n" "$RANLIB" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5
+printf '%s\n' "$RANLIB" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -6511,13 +6563,13 @@ if test -z "$ac_cv_prog_RANLIB"; then
   ac_ct_RANLIB=$RANLIB
   # Extract the first word of "ranlib", so it can be a program name with args.
 set dummy ranlib; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_RANLIB+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_RANLIB"; then
+else case e in #(
+  e) if test -n "$ac_ct_RANLIB"; then
   ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -6532,22 +6584,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_RANLIB="ranlib"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
 if test -n "$ac_ct_RANLIB"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5
-printf "%s\n" "$ac_ct_RANLIB" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5
+printf '%s\n' "$ac_ct_RANLIB" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
   if test "x$ac_ct_RANLIB" = x; then
@@ -6555,8 +6608,8 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf '%s\n' "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     RANLIB=$ac_ct_RANLIB
@@ -6609,17 +6662,17 @@ esac
 
 
 
-for ac_prog in gawk mawk nawk awk
+for ac_prog in gawk mawk nawk awk 'busybox awk'
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_AWK+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$AWK"; then
+else case e in #(
+  e) if test -n "$AWK"; then
   ac_cv_prog_AWK="$AWK" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -6634,22 +6687,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_AWK="$ac_prog"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 AWK=$ac_cv_prog_AWK
 if test -n "$AWK"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $AWK" >&5
-printf "%s\n" "$AWK" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $AWK" >&5
+printf '%s\n' "$AWK" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -6685,13 +6739,13 @@ compiler=$CC
 
 
 # Check for command to grab the raw symbol name followed by C symbol from nm.
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking command to parse $NM output from $compiler object" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking command to parse $NM output from $compiler object" >&5
 printf %s "checking command to parse $NM output from $compiler object... " >&6; }
 if test ${lt_cv_sys_global_symbol_pipe+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
 # These are sane defaults that work on at least a few old systems.
 # [They come from Ultrix.  What could be older than Ultrix?!! ;)]
 
@@ -6842,14 +6896,14 @@ _LT_EOF
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
     # Now try to grab the symbols.
     nlist=conftest.nm
     if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist\""; } >&5
   (eval $NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } && test -s "$nlist"; then
       # Try sorting and uniquifying the output.
       if sort "$nlist" | uniq > "$nlist"T; then
@@ -6918,7 +6972,7 @@ _LT_EOF
 	  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } && test -s conftest$ac_exeext; then
 	    pipe_works=yes
 	  fi
@@ -6946,18 +7000,19 @@ _LT_EOF
     lt_cv_sys_global_symbol_pipe=
   fi
 done
-
+ ;;
+esac
 fi
 
 if test -z "$lt_cv_sys_global_symbol_pipe"; then
   lt_cv_sys_global_symbol_to_cdecl=
 fi
 if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: failed" >&5
-printf "%s\n" "failed" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: failed" >&5
+printf '%s\n' "failed" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: ok" >&5
-printf "%s\n" "ok" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: ok" >&5
+printf '%s\n' "ok" >&6; }
 fi
 
 # Response file support.
@@ -7003,15 +7058,16 @@ fi
 
 
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for sysroot" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for sysroot" >&5
 printf %s "checking for sysroot... " >&6; }
 
 # Check whether --with-sysroot was given.
 if test ${with_sysroot+y}
 then :
   withval=$with_sysroot;
-else $as_nop
-  with_sysroot=no
+else case e in #(
+  e) with_sysroot=no ;;
+esac
 fi
 
 
@@ -7028,26 +7084,26 @@ case $with_sysroot in #(
  no|'')
    ;; #(
  *)
-   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $with_sysroot" >&5
-printf "%s\n" "$with_sysroot" >&6; }
+   { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $with_sysroot" >&5
+printf '%s\n' "$with_sysroot" >&6; }
    as_fn_error $? "The sysroot must be an absolute path." "$LINENO" 5
    ;;
 esac
 
- { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: ${lt_sysroot:-no}" >&5
-printf "%s\n" "${lt_sysroot:-no}" >&6; }
+ { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: ${lt_sysroot:-no}" >&5
+printf '%s\n' "${lt_sysroot:-no}" >&6; }
 
 
 
 
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for a working dd" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for a working dd" >&5
 printf %s "checking for a working dd... " >&6; }
 if test ${ac_cv_path_lt_DD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  printf 0123456789abcdef0123456789abcdef >conftest.i
+else case e in #(
+  e) printf 0123456789abcdef0123456789abcdef >conftest.i
 cat conftest.i conftest.i >conftest2.i
 : ${lt_DD:=$DD}
 if test -z "$lt_DD"; then
@@ -7083,19 +7139,20 @@ else
   ac_cv_path_lt_DD=$lt_DD
 fi
 
-rm -f conftest.i conftest2.i conftest.out
+rm -f conftest.i conftest2.i conftest.out ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_lt_DD" >&5
-printf "%s\n" "$ac_cv_path_lt_DD" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_lt_DD" >&5
+printf '%s\n' "$ac_cv_path_lt_DD" >&6; }
 
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking how to truncate binary pipes" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking how to truncate binary pipes" >&5
 printf %s "checking how to truncate binary pipes... " >&6; }
 if test ${lt_cv_truncate_bin+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  printf 0123456789abcdef0123456789abcdef >conftest.i
+else case e in #(
+  e) printf 0123456789abcdef0123456789abcdef >conftest.i
 cat conftest.i conftest.i >conftest2.i
 lt_cv_truncate_bin=
 if "$ac_cv_path_lt_DD" bs=32 count=1 <conftest2.i >conftest.out 2>/dev/null; then
@@ -7103,10 +7160,11 @@ if "$ac_cv_path_lt_DD" bs=32 count=1 <conftest2.i >conftest.out 2>/dev/null; the
   && lt_cv_truncate_bin="$ac_cv_path_lt_DD bs=4096 count=1"
 fi
 rm -f conftest.i conftest2.i conftest.out
-test -z "$lt_cv_truncate_bin" && lt_cv_truncate_bin="$SED -e 4q"
+test -z "$lt_cv_truncate_bin" && lt_cv_truncate_bin="$SED -e 4q" ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_truncate_bin" >&5
-printf "%s\n" "$lt_cv_truncate_bin" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_truncate_bin" >&5
+printf '%s\n' "$lt_cv_truncate_bin" >&6; }
 
 
 
@@ -7146,7 +7204,7 @@ ia64-*-hpux*)
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
     case `/usr/bin/file conftest.$ac_objext` in
       *ELF-32*)
@@ -7166,7 +7224,7 @@ ia64-*-hpux*)
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
     if test yes = "$lt_cv_prog_gnu_ld"; then
       case `/usr/bin/file conftest.$ac_objext` in
@@ -7204,7 +7262,7 @@ mips64*-*linux*)
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
     emul=elf
     case `/usr/bin/file conftest.$ac_objext` in
@@ -7245,7 +7303,7 @@ s390*-*linux*|s390*-*tpf*|sparc*-*linux*|x86_64-gnu*)
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
     case `/usr/bin/file conftest.o` in
       *32-bit*)
@@ -7308,13 +7366,13 @@ s390*-*linux*|s390*-*tpf*|sparc*-*linux*|x86_64-gnu*)
   # On SCO OpenServer 5, we need -belf to get full-featured binaries.
   SAVE_CFLAGS=$CFLAGS
   CFLAGS="$CFLAGS -belf"
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the C compiler needs -belf" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking whether the C compiler needs -belf" >&5
 printf %s "checking whether the C compiler needs -belf... " >&6; }
 if test ${lt_cv_cc_needs_belf+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_ext=c
+else case e in #(
+  e) ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
@@ -7334,8 +7392,9 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   lt_cv_cc_needs_belf=yes
-else $as_nop
-  lt_cv_cc_needs_belf=no
+else case e in #(
+  e) lt_cv_cc_needs_belf=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
@@ -7344,10 +7403,11 @@ ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
+ ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_cc_needs_belf" >&5
-printf "%s\n" "$lt_cv_cc_needs_belf" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_cc_needs_belf" >&5
+printf '%s\n' "$lt_cv_cc_needs_belf" >&6; }
   if test yes != "$lt_cv_cc_needs_belf"; then
     # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
     CFLAGS=$SAVE_CFLAGS
@@ -7360,7 +7420,7 @@ printf "%s\n" "$lt_cv_cc_needs_belf" >&6; }
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
     case `/usr/bin/file conftest.o` in
     *64-bit*)
@@ -7397,13 +7457,13 @@ need_locks=$enable_libtool_lock
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}mt", so it can be a program name with args.
 set dummy ${ac_tool_prefix}mt; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_MANIFEST_TOOL+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$MANIFEST_TOOL"; then
+else case e in #(
+  e) if test -n "$MANIFEST_TOOL"; then
   ac_cv_prog_MANIFEST_TOOL="$MANIFEST_TOOL" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -7418,22 +7478,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_MANIFEST_TOOL="${ac_tool_prefix}mt"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 MANIFEST_TOOL=$ac_cv_prog_MANIFEST_TOOL
 if test -n "$MANIFEST_TOOL"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $MANIFEST_TOOL" >&5
-printf "%s\n" "$MANIFEST_TOOL" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $MANIFEST_TOOL" >&5
+printf '%s\n' "$MANIFEST_TOOL" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -7442,13 +7503,13 @@ if test -z "$ac_cv_prog_MANIFEST_TOOL"; then
   ac_ct_MANIFEST_TOOL=$MANIFEST_TOOL
   # Extract the first word of "mt", so it can be a program name with args.
 set dummy mt; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_MANIFEST_TOOL+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_MANIFEST_TOOL"; then
+else case e in #(
+  e) if test -n "$ac_ct_MANIFEST_TOOL"; then
   ac_cv_prog_ac_ct_MANIFEST_TOOL="$ac_ct_MANIFEST_TOOL" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -7463,22 +7524,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_MANIFEST_TOOL="mt"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_MANIFEST_TOOL=$ac_cv_prog_ac_ct_MANIFEST_TOOL
 if test -n "$ac_ct_MANIFEST_TOOL"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_MANIFEST_TOOL" >&5
-printf "%s\n" "$ac_ct_MANIFEST_TOOL" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_ct_MANIFEST_TOOL" >&5
+printf '%s\n' "$ac_ct_MANIFEST_TOOL" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
   if test "x$ac_ct_MANIFEST_TOOL" = x; then
@@ -7486,8 +7548,8 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf '%s\n' "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     MANIFEST_TOOL=$ac_ct_MANIFEST_TOOL
@@ -7497,23 +7559,24 @@ else
 fi
 
 test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if $MANIFEST_TOOL is a manifest tool" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking if $MANIFEST_TOOL is a manifest tool" >&5
 printf %s "checking if $MANIFEST_TOOL is a manifest tool... " >&6; }
 if test ${lt_cv_path_mainfest_tool+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  lt_cv_path_mainfest_tool=no
+else case e in #(
+  e) lt_cv_path_mainfest_tool=no
   echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&5
   $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out
   cat conftest.err >&5
   if $GREP 'Manifest Tool' conftest.out > /dev/null; then
     lt_cv_path_mainfest_tool=yes
   fi
-  rm -f conftest*
+  rm -f conftest* ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_mainfest_tool" >&5
-printf "%s\n" "$lt_cv_path_mainfest_tool" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_mainfest_tool" >&5
+printf '%s\n' "$lt_cv_path_mainfest_tool" >&6; }
 if test yes != "$lt_cv_path_mainfest_tool"; then
   MANIFEST_TOOL=:
 fi
@@ -7528,13 +7591,13 @@ fi
     if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}dsymutil", so it can be a program name with args.
 set dummy ${ac_tool_prefix}dsymutil; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_DSYMUTIL+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$DSYMUTIL"; then
+else case e in #(
+  e) if test -n "$DSYMUTIL"; then
   ac_cv_prog_DSYMUTIL="$DSYMUTIL" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -7549,22 +7612,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_DSYMUTIL="${ac_tool_prefix}dsymutil"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 DSYMUTIL=$ac_cv_prog_DSYMUTIL
 if test -n "$DSYMUTIL"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $DSYMUTIL" >&5
-printf "%s\n" "$DSYMUTIL" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $DSYMUTIL" >&5
+printf '%s\n' "$DSYMUTIL" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -7573,13 +7637,13 @@ if test -z "$ac_cv_prog_DSYMUTIL"; then
   ac_ct_DSYMUTIL=$DSYMUTIL
   # Extract the first word of "dsymutil", so it can be a program name with args.
 set dummy dsymutil; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_DSYMUTIL+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_DSYMUTIL"; then
+else case e in #(
+  e) if test -n "$ac_ct_DSYMUTIL"; then
   ac_cv_prog_ac_ct_DSYMUTIL="$ac_ct_DSYMUTIL" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -7594,22 +7658,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_DSYMUTIL="dsymutil"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_DSYMUTIL=$ac_cv_prog_ac_ct_DSYMUTIL
 if test -n "$ac_ct_DSYMUTIL"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DSYMUTIL" >&5
-printf "%s\n" "$ac_ct_DSYMUTIL" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DSYMUTIL" >&5
+printf '%s\n' "$ac_ct_DSYMUTIL" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
   if test "x$ac_ct_DSYMUTIL" = x; then
@@ -7617,8 +7682,8 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf '%s\n' "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     DSYMUTIL=$ac_ct_DSYMUTIL
@@ -7630,13 +7695,13 @@ fi
     if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}nmedit", so it can be a program name with args.
 set dummy ${ac_tool_prefix}nmedit; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_NMEDIT+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$NMEDIT"; then
+else case e in #(
+  e) if test -n "$NMEDIT"; then
   ac_cv_prog_NMEDIT="$NMEDIT" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -7651,22 +7716,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_NMEDIT="${ac_tool_prefix}nmedit"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 NMEDIT=$ac_cv_prog_NMEDIT
 if test -n "$NMEDIT"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $NMEDIT" >&5
-printf "%s\n" "$NMEDIT" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $NMEDIT" >&5
+printf '%s\n' "$NMEDIT" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -7675,13 +7741,13 @@ if test -z "$ac_cv_prog_NMEDIT"; then
   ac_ct_NMEDIT=$NMEDIT
   # Extract the first word of "nmedit", so it can be a program name with args.
 set dummy nmedit; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_NMEDIT+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_NMEDIT"; then
+else case e in #(
+  e) if test -n "$ac_ct_NMEDIT"; then
   ac_cv_prog_ac_ct_NMEDIT="$ac_ct_NMEDIT" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -7696,22 +7762,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_NMEDIT="nmedit"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_NMEDIT=$ac_cv_prog_ac_ct_NMEDIT
 if test -n "$ac_ct_NMEDIT"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_NMEDIT" >&5
-printf "%s\n" "$ac_ct_NMEDIT" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_ct_NMEDIT" >&5
+printf '%s\n' "$ac_ct_NMEDIT" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
   if test "x$ac_ct_NMEDIT" = x; then
@@ -7719,8 +7786,8 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf '%s\n' "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     NMEDIT=$ac_ct_NMEDIT
@@ -7732,13 +7799,13 @@ fi
     if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}lipo", so it can be a program name with args.
 set dummy ${ac_tool_prefix}lipo; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_LIPO+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$LIPO"; then
+else case e in #(
+  e) if test -n "$LIPO"; then
   ac_cv_prog_LIPO="$LIPO" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -7753,22 +7820,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_LIPO="${ac_tool_prefix}lipo"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 LIPO=$ac_cv_prog_LIPO
 if test -n "$LIPO"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $LIPO" >&5
-printf "%s\n" "$LIPO" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $LIPO" >&5
+printf '%s\n' "$LIPO" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -7777,13 +7845,13 @@ if test -z "$ac_cv_prog_LIPO"; then
   ac_ct_LIPO=$LIPO
   # Extract the first word of "lipo", so it can be a program name with args.
 set dummy lipo; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_LIPO+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_LIPO"; then
+else case e in #(
+  e) if test -n "$ac_ct_LIPO"; then
   ac_cv_prog_ac_ct_LIPO="$ac_ct_LIPO" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -7798,22 +7866,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_LIPO="lipo"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_LIPO=$ac_cv_prog_ac_ct_LIPO
 if test -n "$ac_ct_LIPO"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_LIPO" >&5
-printf "%s\n" "$ac_ct_LIPO" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_ct_LIPO" >&5
+printf '%s\n' "$ac_ct_LIPO" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
   if test "x$ac_ct_LIPO" = x; then
@@ -7821,8 +7890,8 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf '%s\n' "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     LIPO=$ac_ct_LIPO
@@ -7834,13 +7903,13 @@ fi
     if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}otool", so it can be a program name with args.
 set dummy ${ac_tool_prefix}otool; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_OTOOL+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$OTOOL"; then
+else case e in #(
+  e) if test -n "$OTOOL"; then
   ac_cv_prog_OTOOL="$OTOOL" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -7855,22 +7924,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_OTOOL="${ac_tool_prefix}otool"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 OTOOL=$ac_cv_prog_OTOOL
 if test -n "$OTOOL"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $OTOOL" >&5
-printf "%s\n" "$OTOOL" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $OTOOL" >&5
+printf '%s\n' "$OTOOL" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -7879,13 +7949,13 @@ if test -z "$ac_cv_prog_OTOOL"; then
   ac_ct_OTOOL=$OTOOL
   # Extract the first word of "otool", so it can be a program name with args.
 set dummy otool; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_OTOOL+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_OTOOL"; then
+else case e in #(
+  e) if test -n "$ac_ct_OTOOL"; then
   ac_cv_prog_ac_ct_OTOOL="$ac_ct_OTOOL" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -7900,22 +7970,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_OTOOL="otool"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_OTOOL=$ac_cv_prog_ac_ct_OTOOL
 if test -n "$ac_ct_OTOOL"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL" >&5
-printf "%s\n" "$ac_ct_OTOOL" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL" >&5
+printf '%s\n' "$ac_ct_OTOOL" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
   if test "x$ac_ct_OTOOL" = x; then
@@ -7923,8 +7994,8 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf '%s\n' "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     OTOOL=$ac_ct_OTOOL
@@ -7936,13 +8007,13 @@ fi
     if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}otool64", so it can be a program name with args.
 set dummy ${ac_tool_prefix}otool64; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_OTOOL64+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$OTOOL64"; then
+else case e in #(
+  e) if test -n "$OTOOL64"; then
   ac_cv_prog_OTOOL64="$OTOOL64" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -7957,22 +8028,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_OTOOL64="${ac_tool_prefix}otool64"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 OTOOL64=$ac_cv_prog_OTOOL64
 if test -n "$OTOOL64"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $OTOOL64" >&5
-printf "%s\n" "$OTOOL64" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $OTOOL64" >&5
+printf '%s\n' "$OTOOL64" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -7981,13 +8053,13 @@ if test -z "$ac_cv_prog_OTOOL64"; then
   ac_ct_OTOOL64=$OTOOL64
   # Extract the first word of "otool64", so it can be a program name with args.
 set dummy otool64; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_OTOOL64+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_OTOOL64"; then
+else case e in #(
+  e) if test -n "$ac_ct_OTOOL64"; then
   ac_cv_prog_ac_ct_OTOOL64="$ac_ct_OTOOL64" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -8002,22 +8074,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_OTOOL64="otool64"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_OTOOL64=$ac_cv_prog_ac_ct_OTOOL64
 if test -n "$ac_ct_OTOOL64"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL64" >&5
-printf "%s\n" "$ac_ct_OTOOL64" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL64" >&5
+printf '%s\n' "$ac_ct_OTOOL64" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
   if test "x$ac_ct_OTOOL64" = x; then
@@ -8025,8 +8098,8 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf '%s\n' "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     OTOOL64=$ac_ct_OTOOL64
@@ -8061,13 +8134,13 @@ fi
 
 
 
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for -single_module linker flag" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for -single_module linker flag" >&5
 printf %s "checking for -single_module linker flag... " >&6; }
 if test ${lt_cv_apple_cc_single_mod+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  lt_cv_apple_cc_single_mod=no
+else case e in #(
+  e) lt_cv_apple_cc_single_mod=no
       if test -z "$LT_MULTI_MODULE"; then
 	# By default we will add the -single_module flag. You can override
 	# by either setting the environment variable LT_MULTI_MODULE
@@ -8093,20 +8166,21 @@ else $as_nop
 	fi
 	rm -rf libconftest.dylib*
 	rm -f conftest.*
-      fi
+      fi ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_apple_cc_single_mod" >&5
-printf "%s\n" "$lt_cv_apple_cc_single_mod" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_apple_cc_single_mod" >&5
+printf '%s\n' "$lt_cv_apple_cc_single_mod" >&6; }
 
     # Feature test to disable chained fixups since it is not
     # compatible with '-undefined dynamic_lookup'
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for -no_fixup_chains linker flag" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for -no_fixup_chains linker flag" >&5
 printf %s "checking for -no_fixup_chains linker flag... " >&6; }
 if test ${lt_cv_support_no_fixup_chains+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-   save_LDFLAGS=$LDFLAGS
+else case e in #(
+  e)  save_LDFLAGS=$LDFLAGS
         LDFLAGS="$LDFLAGS -Wl,-no_fixup_chains"
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -8122,26 +8196,28 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   lt_cv_support_no_fixup_chains=yes
-else $as_nop
-  lt_cv_support_no_fixup_chains=no
-
+else case e in #(
+  e) lt_cv_support_no_fixup_chains=no
+         ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
         LDFLAGS=$save_LDFLAGS
 
-
+     ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_support_no_fixup_chains" >&5
-printf "%s\n" "$lt_cv_support_no_fixup_chains" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_support_no_fixup_chains" >&5
+printf '%s\n' "$lt_cv_support_no_fixup_chains" >&6; }
 
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for -exported_symbols_list linker flag" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for -exported_symbols_list linker flag" >&5
 printf %s "checking for -exported_symbols_list linker flag... " >&6; }
 if test ${lt_cv_ld_exported_symbols_list+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  lt_cv_ld_exported_symbols_list=no
+else case e in #(
+  e) lt_cv_ld_exported_symbols_list=no
       save_LDFLAGS=$LDFLAGS
       echo "_main" > conftest.sym
       LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym"
@@ -8159,24 +8235,26 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   lt_cv_ld_exported_symbols_list=yes
-else $as_nop
-  lt_cv_ld_exported_symbols_list=no
+else case e in #(
+  e) lt_cv_ld_exported_symbols_list=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 	LDFLAGS=$save_LDFLAGS
-
+     ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_exported_symbols_list" >&5
-printf "%s\n" "$lt_cv_ld_exported_symbols_list" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_exported_symbols_list" >&5
+printf '%s\n' "$lt_cv_ld_exported_symbols_list" >&6; }
 
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for -force_load linker flag" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for -force_load linker flag" >&5
 printf %s "checking for -force_load linker flag... " >&6; }
 if test ${lt_cv_ld_force_load+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  lt_cv_ld_force_load=no
+else case e in #(
+  e) lt_cv_ld_force_load=no
       cat > conftest.c << _LT_EOF
 int forced_loaded() { return 2;}
 _LT_EOF
@@ -8201,10 +8279,11 @@ _LT_EOF
       fi
         rm -f conftest.err libconftest.a conftest conftest.c
         rm -rf conftest.dSYM
-
+     ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5
-printf "%s\n" "$lt_cv_ld_force_load" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5
+printf '%s\n' "$lt_cv_ld_force_load" >&6; }
     case $host_os in
     rhapsody* | darwin1.[012])
       _lt_dar_allow_undefined='$wl-undefined ${wl}suppress' ;;
@@ -8281,7 +8360,7 @@ do
   if test $ac_cache; then
     ac_fn_c_check_header_compile "$LINENO" $ac_header ac_cv_header_$ac_cache "$ac_includes_default"
     if eval test \"x\$ac_cv_header_$ac_cache\" = xyes; then
-      printf "%s\n" "#define $ac_item 1" >> confdefs.h
+      printf '%s\n' "#define $ac_item 1" >> confdefs.h
     fi
     ac_header= ac_cache=
   elif test $ac_header; then
@@ -8301,14 +8380,14 @@ done
 if test $ac_cv_header_stdlib_h = yes && test $ac_cv_header_string_h = yes
 then :
 
-printf "%s\n" "#define STDC_HEADERS 1" >>confdefs.h
+printf '%s\n' "#define STDC_HEADERS 1" >>confdefs.h
 
 fi
 ac_fn_c_check_header_compile "$LINENO" "dlfcn.h" "ac_cv_header_dlfcn_h" "$ac_includes_default
 "
 if test "x$ac_cv_header_dlfcn_h" = xyes
 then :
-  printf "%s\n" "#define HAVE_DLFCN_H 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_DLFCN_H 1" >>confdefs.h
 
 fi
 
@@ -8324,13 +8403,13 @@ case $host in
   if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}as", so it can be a program name with args.
 set dummy ${ac_tool_prefix}as; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_AS+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$AS"; then
+else case e in #(
+  e) if test -n "$AS"; then
   ac_cv_prog_AS="$AS" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -8345,22 +8424,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_AS="${ac_tool_prefix}as"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 AS=$ac_cv_prog_AS
 if test -n "$AS"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $AS" >&5
-printf "%s\n" "$AS" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $AS" >&5
+printf '%s\n' "$AS" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -8369,13 +8449,13 @@ if test -z "$ac_cv_prog_AS"; then
   ac_ct_AS=$AS
   # Extract the first word of "as", so it can be a program name with args.
 set dummy as; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_AS+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_AS"; then
+else case e in #(
+  e) if test -n "$ac_ct_AS"; then
   ac_cv_prog_ac_ct_AS="$ac_ct_AS" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -8390,22 +8470,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_AS="as"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_AS=$ac_cv_prog_ac_ct_AS
 if test -n "$ac_ct_AS"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AS" >&5
-printf "%s\n" "$ac_ct_AS" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AS" >&5
+printf '%s\n' "$ac_ct_AS" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
   if test "x$ac_ct_AS" = x; then
@@ -8413,8 +8494,8 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf '%s\n' "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     AS=$ac_ct_AS
@@ -8426,13 +8507,13 @@ fi
   if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}dlltool", so it can be a program name with args.
 set dummy ${ac_tool_prefix}dlltool; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_DLLTOOL+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$DLLTOOL"; then
+else case e in #(
+  e) if test -n "$DLLTOOL"; then
   ac_cv_prog_DLLTOOL="$DLLTOOL" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -8447,22 +8528,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_DLLTOOL="${ac_tool_prefix}dlltool"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 DLLTOOL=$ac_cv_prog_DLLTOOL
 if test -n "$DLLTOOL"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $DLLTOOL" >&5
-printf "%s\n" "$DLLTOOL" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $DLLTOOL" >&5
+printf '%s\n' "$DLLTOOL" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -8471,13 +8553,13 @@ if test -z "$ac_cv_prog_DLLTOOL"; then
   ac_ct_DLLTOOL=$DLLTOOL
   # Extract the first word of "dlltool", so it can be a program name with args.
 set dummy dlltool; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_DLLTOOL+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_DLLTOOL"; then
+else case e in #(
+  e) if test -n "$ac_ct_DLLTOOL"; then
   ac_cv_prog_ac_ct_DLLTOOL="$ac_ct_DLLTOOL" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -8492,22 +8574,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_DLLTOOL="dlltool"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_DLLTOOL=$ac_cv_prog_ac_ct_DLLTOOL
 if test -n "$ac_ct_DLLTOOL"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DLLTOOL" >&5
-printf "%s\n" "$ac_ct_DLLTOOL" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DLLTOOL" >&5
+printf '%s\n' "$ac_ct_DLLTOOL" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
   if test "x$ac_ct_DLLTOOL" = x; then
@@ -8515,8 +8598,8 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf '%s\n' "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     DLLTOOL=$ac_ct_DLLTOOL
@@ -8528,13 +8611,13 @@ fi
   if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}objdump", so it can be a program name with args.
 set dummy ${ac_tool_prefix}objdump; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_OBJDUMP+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$OBJDUMP"; then
+else case e in #(
+  e) if test -n "$OBJDUMP"; then
   ac_cv_prog_OBJDUMP="$OBJDUMP" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -8549,22 +8632,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 OBJDUMP=$ac_cv_prog_OBJDUMP
 if test -n "$OBJDUMP"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5
-printf "%s\n" "$OBJDUMP" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5
+printf '%s\n' "$OBJDUMP" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -8573,13 +8657,13 @@ if test -z "$ac_cv_prog_OBJDUMP"; then
   ac_ct_OBJDUMP=$OBJDUMP
   # Extract the first word of "objdump", so it can be a program name with args.
 set dummy objdump; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_OBJDUMP+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_OBJDUMP"; then
+else case e in #(
+  e) if test -n "$ac_ct_OBJDUMP"; then
   ac_cv_prog_ac_ct_OBJDUMP="$ac_ct_OBJDUMP" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -8594,22 +8678,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_OBJDUMP="objdump"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_OBJDUMP=$ac_cv_prog_ac_ct_OBJDUMP
 if test -n "$ac_ct_OBJDUMP"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5
-printf "%s\n" "$ac_ct_OBJDUMP" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5
+printf '%s\n' "$ac_ct_OBJDUMP" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
   if test "x$ac_ct_OBJDUMP" = x; then
@@ -8617,8 +8702,8 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf '%s\n' "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     OBJDUMP=$ac_ct_OBJDUMP
@@ -8674,8 +8759,9 @@ then :
       IFS=$lt_save_ifs
       ;;
     esac
-else $as_nop
-  enable_shared=yes
+else case e in #(
+  e) enable_shared=yes ;;
+esac
 fi
 
 
@@ -8706,8 +8792,9 @@ then :
       IFS=$lt_save_ifs
       ;;
     esac
-else $as_nop
-  enable_static=yes
+else case e in #(
+  e) enable_static=yes ;;
+esac
 fi
 
 
@@ -8738,8 +8825,9 @@ then :
       IFS=$lt_save_ifs
       ;;
     esac
-else $as_nop
-  pic_mode=default
+else case e in #(
+  e) pic_mode=default ;;
+esac
 fi
 
 
@@ -8769,8 +8857,9 @@ then :
       IFS=$lt_save_ifs
       ;;
     esac
-else $as_nop
-  enable_fast_install=yes
+else case e in #(
+  e) enable_fast_install=yes ;;
+esac
 fi
 
 
@@ -8783,7 +8872,7 @@ fi
   shared_archive_member_spec=
 case $host,$enable_shared in
 power*-*-aix[5-9]*,yes)
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking which variant of shared library versioning to provide" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking which variant of shared library versioning to provide" >&5
 printf %s "checking which variant of shared library versioning to provide... " >&6; }
 
 # Check whether --with-aix-soname was given.
@@ -8797,19 +8886,21 @@ then :
       ;;
     esac
     lt_cv_with_aix_soname=$with_aix_soname
-else $as_nop
-  if test ${lt_cv_with_aix_soname+y}
+else case e in #(
+  e) if test ${lt_cv_with_aix_soname+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  lt_cv_with_aix_soname=aix
+else case e in #(
+  e) lt_cv_with_aix_soname=aix ;;
+esac
 fi
 
-    with_aix_soname=$lt_cv_with_aix_soname
+    with_aix_soname=$lt_cv_with_aix_soname ;;
+esac
 fi
 
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $with_aix_soname" >&5
-printf "%s\n" "$with_aix_soname" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $with_aix_soname" >&5
+printf '%s\n' "$with_aix_soname" >&6; }
   if test aix != "$with_aix_soname"; then
     # For the AIX way of multilib, we name the shared archive member
     # based on the bitwidth used, traditionally 'shr.o' or 'shr_64.o',
@@ -8891,13 +8982,13 @@ if test -n "${ZSH_VERSION+set}"; then
    setopt NO_GLOB_SUBST
 fi
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for objdir" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for objdir" >&5
 printf %s "checking for objdir... " >&6; }
 if test ${lt_cv_objdir+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  rm -f .libs 2>/dev/null
+else case e in #(
+  e) rm -f .libs 2>/dev/null
 mkdir .libs 2>/dev/null
 if test -d .libs; then
   lt_cv_objdir=.libs
@@ -8905,17 +8996,18 @@ else
   # MS-DOS does not allow filenames that begin with a dot.
   lt_cv_objdir=_libs
 fi
-rmdir .libs 2>/dev/null
+rmdir .libs 2>/dev/null ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_objdir" >&5
-printf "%s\n" "$lt_cv_objdir" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_objdir" >&5
+printf '%s\n' "$lt_cv_objdir" >&6; }
 objdir=$lt_cv_objdir
 
 
 
 
 
-printf "%s\n" "#define LT_OBJDIR \"$lt_cv_objdir/\"" >>confdefs.h
+printf '%s\n' "#define LT_OBJDIR \"$lt_cv_objdir/\"" >>confdefs.h
 
 
 
@@ -8961,13 +9053,13 @@ test -z "$MAGIC_CMD" && MAGIC_CMD=file
 case $deplibs_check_method in
 file_magic*)
   if test "$file_magic_cmd" = '$MAGIC_CMD'; then
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ${ac_tool_prefix}file" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for ${ac_tool_prefix}file" >&5
 printf %s "checking for ${ac_tool_prefix}file... " >&6; }
 if test ${lt_cv_path_MAGIC_CMD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $MAGIC_CMD in
+else case e in #(
+  e) case $MAGIC_CMD in
 [\\/*] |  ?:[\\/]*)
   lt_cv_path_MAGIC_CMD=$MAGIC_CMD # Let the user override the test with a path.
   ;;
@@ -9010,16 +9102,17 @@ _LT_EOF
   IFS=$lt_save_ifs
   MAGIC_CMD=$lt_save_MAGIC_CMD
   ;;
+esac ;;
 esac
 fi
 
 MAGIC_CMD=$lt_cv_path_MAGIC_CMD
 if test -n "$MAGIC_CMD"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5
-printf "%s\n" "$MAGIC_CMD" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5
+printf '%s\n' "$MAGIC_CMD" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -9028,13 +9121,13 @@ fi
 
 if test -z "$lt_cv_path_MAGIC_CMD"; then
   if test -n "$ac_tool_prefix"; then
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for file" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for file" >&5
 printf %s "checking for file... " >&6; }
 if test ${lt_cv_path_MAGIC_CMD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $MAGIC_CMD in
+else case e in #(
+  e) case $MAGIC_CMD in
 [\\/*] |  ?:[\\/]*)
   lt_cv_path_MAGIC_CMD=$MAGIC_CMD # Let the user override the test with a path.
   ;;
@@ -9077,16 +9170,17 @@ _LT_EOF
   IFS=$lt_save_ifs
   MAGIC_CMD=$lt_save_MAGIC_CMD
   ;;
+esac ;;
 esac
 fi
 
 MAGIC_CMD=$lt_cv_path_MAGIC_CMD
 if test -n "$MAGIC_CMD"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5
-printf "%s\n" "$MAGIC_CMD" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5
+printf '%s\n' "$MAGIC_CMD" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -9171,13 +9265,13 @@ if test yes = "$GCC"; then
     lt_prog_compiler_no_builtin_flag=' -fno-builtin' ;;
   esac
 
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -fno-rtti -fno-exceptions" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -fno-rtti -fno-exceptions" >&5
 printf %s "checking if $compiler supports -fno-rtti -fno-exceptions... " >&6; }
 if test ${lt_cv_prog_compiler_rtti_exceptions+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  lt_cv_prog_compiler_rtti_exceptions=no
+else case e in #(
+  e) lt_cv_prog_compiler_rtti_exceptions=no
    ac_outfile=conftest.$ac_objext
    echo "$lt_simple_compile_test_code" > conftest.$ac_ext
    lt_compiler_flag="-fno-rtti -fno-exceptions"  ## exclude from sc_useless_quotes_in_assignment
@@ -9205,10 +9299,11 @@ else $as_nop
      fi
    fi
    $RM conftest*
-
+ ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_rtti_exceptions" >&5
-printf "%s\n" "$lt_cv_prog_compiler_rtti_exceptions" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_rtti_exceptions" >&5
+printf '%s\n' "$lt_cv_prog_compiler_rtti_exceptions" >&6; }
 
 if test yes = "$lt_cv_prog_compiler_rtti_exceptions"; then
     lt_prog_compiler_no_builtin_flag="$lt_prog_compiler_no_builtin_flag -fno-rtti -fno-exceptions"
@@ -9565,29 +9660,30 @@ case $host_os in
     ;;
 esac
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $compiler option to produce PIC" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $compiler option to produce PIC" >&5
 printf %s "checking for $compiler option to produce PIC... " >&6; }
 if test ${lt_cv_prog_compiler_pic+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  lt_cv_prog_compiler_pic=$lt_prog_compiler_pic
+else case e in #(
+  e) lt_cv_prog_compiler_pic=$lt_prog_compiler_pic ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic" >&5
-printf "%s\n" "$lt_cv_prog_compiler_pic" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic" >&5
+printf '%s\n' "$lt_cv_prog_compiler_pic" >&6; }
 lt_prog_compiler_pic=$lt_cv_prog_compiler_pic
 
 #
 # Check to make sure the PIC flag actually works.
 #
 if test -n "$lt_prog_compiler_pic"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if $compiler PIC flag $lt_prog_compiler_pic works" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking if $compiler PIC flag $lt_prog_compiler_pic works" >&5
 printf %s "checking if $compiler PIC flag $lt_prog_compiler_pic works... " >&6; }
 if test ${lt_cv_prog_compiler_pic_works+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  lt_cv_prog_compiler_pic_works=no
+else case e in #(
+  e) lt_cv_prog_compiler_pic_works=no
    ac_outfile=conftest.$ac_objext
    echo "$lt_simple_compile_test_code" > conftest.$ac_ext
    lt_compiler_flag="$lt_prog_compiler_pic -DPIC"  ## exclude from sc_useless_quotes_in_assignment
@@ -9615,10 +9711,11 @@ else $as_nop
      fi
    fi
    $RM conftest*
-
+ ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_works" >&5
-printf "%s\n" "$lt_cv_prog_compiler_pic_works" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_works" >&5
+printf '%s\n' "$lt_cv_prog_compiler_pic_works" >&6; }
 
 if test yes = "$lt_cv_prog_compiler_pic_works"; then
     case $lt_prog_compiler_pic in
@@ -9646,13 +9743,13 @@ fi
 # Check to make sure the static flag actually works.
 #
 wl=$lt_prog_compiler_wl eval lt_tmp_static_flag=\"$lt_prog_compiler_static\"
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if $compiler static flag $lt_tmp_static_flag works" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking if $compiler static flag $lt_tmp_static_flag works" >&5
 printf %s "checking if $compiler static flag $lt_tmp_static_flag works... " >&6; }
 if test ${lt_cv_prog_compiler_static_works+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  lt_cv_prog_compiler_static_works=no
+else case e in #(
+  e) lt_cv_prog_compiler_static_works=no
    save_LDFLAGS=$LDFLAGS
    LDFLAGS="$LDFLAGS $lt_tmp_static_flag"
    echo "$lt_simple_link_test_code" > conftest.$ac_ext
@@ -9673,10 +9770,11 @@ else $as_nop
    fi
    $RM -r conftest*
    LDFLAGS=$save_LDFLAGS
-
+ ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_static_works" >&5
-printf "%s\n" "$lt_cv_prog_compiler_static_works" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_static_works" >&5
+printf '%s\n' "$lt_cv_prog_compiler_static_works" >&6; }
 
 if test yes = "$lt_cv_prog_compiler_static_works"; then
     :
@@ -9690,13 +9788,13 @@ fi
 
 
 
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
 printf %s "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
 if test ${lt_cv_prog_compiler_c_o+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  lt_cv_prog_compiler_c_o=no
+else case e in #(
+  e) lt_cv_prog_compiler_c_o=no
    $RM -r conftest 2>/dev/null
    mkdir conftest
    cd conftest
@@ -9736,23 +9834,24 @@ else $as_nop
    cd ..
    $RM -r conftest
    $RM conftest*
-
+ ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5
-printf "%s\n" "$lt_cv_prog_compiler_c_o" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5
+printf '%s\n' "$lt_cv_prog_compiler_c_o" >&6; }
 
 
 
 
 
 
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
 printf %s "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
 if test ${lt_cv_prog_compiler_c_o+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  lt_cv_prog_compiler_c_o=no
+else case e in #(
+  e) lt_cv_prog_compiler_c_o=no
    $RM -r conftest 2>/dev/null
    mkdir conftest
    cd conftest
@@ -9792,10 +9891,11 @@ else $as_nop
    cd ..
    $RM -r conftest
    $RM conftest*
-
+ ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5
-printf "%s\n" "$lt_cv_prog_compiler_c_o" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5
+printf '%s\n' "$lt_cv_prog_compiler_c_o" >&6; }
 
 
 
@@ -9803,7 +9903,7 @@ printf "%s\n" "$lt_cv_prog_compiler_c_o" >&6; }
 hard_links=nottested
 if test no = "$lt_cv_prog_compiler_c_o" && test no != "$need_locks"; then
   # do not overwrite the value of need_locks provided by the user
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if we can lock with hard links" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking if we can lock with hard links" >&5
 printf %s "checking if we can lock with hard links... " >&6; }
   hard_links=yes
   $RM conftest*
@@ -9811,11 +9911,11 @@ printf %s "checking if we can lock with hard links... " >&6; }
   touch conftest.a
   ln conftest.a conftest.b 2>&5 || hard_links=no
   ln conftest.a conftest.b 2>/dev/null && hard_links=no
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $hard_links" >&5
-printf "%s\n" "$hard_links" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $hard_links" >&5
+printf '%s\n' "$hard_links" >&6; }
   if test no = "$hard_links"; then
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: '$CC' does not support '-c -o', so 'make -j' may be unsafe" >&5
-printf "%s\n" "$as_me: WARNING: '$CC' does not support '-c -o', so 'make -j' may be unsafe" >&2;}
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: '$CC' does not support '-c -o', so 'make -j' may be unsafe" >&5
+printf '%s\n' "$as_me: WARNING: '$CC' does not support '-c -o', so 'make -j' may be unsafe" >&2;}
     need_locks=warn
   fi
 else
@@ -9827,7 +9927,7 @@ fi
 
 
 
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5
 printf %s "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; }
 
   runpath_var=
@@ -10386,8 +10486,8 @@ else
   if test ${lt_cv_aix_libpath_+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -10419,7 +10519,8 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam \
   if test -z "$lt_cv_aix_libpath_"; then
     lt_cv_aix_libpath_=/usr/lib:/lib
   fi
-
+   ;;
+esac
 fi
 
   aix_libpath=$lt_cv_aix_libpath_
@@ -10441,8 +10542,8 @@ else
   if test ${lt_cv_aix_libpath_+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -10474,7 +10575,8 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam \
   if test -z "$lt_cv_aix_libpath_"; then
     lt_cv_aix_libpath_=/usr/lib:/lib
   fi
-
+   ;;
+esac
 fi
 
   aix_libpath=$lt_cv_aix_libpath_
@@ -10720,13 +10822,13 @@ fi
 
 	  # Older versions of the 11.00 compiler do not understand -b yet
 	  # (HP92453-01 A.11.01.20 doesn't, HP92453-01 B.11.X.35175-35176.GP does)
-	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if $CC understands -b" >&5
+	  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking if $CC understands -b" >&5
 printf %s "checking if $CC understands -b... " >&6; }
 if test ${lt_cv_prog_compiler__b+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  lt_cv_prog_compiler__b=no
+else case e in #(
+  e) lt_cv_prog_compiler__b=no
    save_LDFLAGS=$LDFLAGS
    LDFLAGS="$LDFLAGS -b"
    echo "$lt_simple_link_test_code" > conftest.$ac_ext
@@ -10747,10 +10849,11 @@ else $as_nop
    fi
    $RM -r conftest*
    LDFLAGS=$save_LDFLAGS
-
+ ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler__b" >&5
-printf "%s\n" "$lt_cv_prog_compiler__b" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler__b" >&5
+printf '%s\n' "$lt_cv_prog_compiler__b" >&6; }
 
 if test yes = "$lt_cv_prog_compiler__b"; then
     archive_cmds='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
@@ -10790,13 +10893,13 @@ fi
 	# work, assume that -exports_file does not work either and
 	# implicitly export all symbols.
 	# This should be the same for all languages, so no per-tag cache variable.
-	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the $host_os linker accepts -exported_symbol" >&5
+	{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking whether the $host_os linker accepts -exported_symbol" >&5
 printf %s "checking whether the $host_os linker accepts -exported_symbol... " >&6; }
 if test ${lt_cv_irix_exported_symbol+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  save_LDFLAGS=$LDFLAGS
+else case e in #(
+  e) save_LDFLAGS=$LDFLAGS
 	   LDFLAGS="$LDFLAGS -shared $wl-exported_symbol ${wl}foo $wl-update_registry $wl/dev/null"
 	   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -10805,15 +10908,17 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   lt_cv_irix_exported_symbol=yes
-else $as_nop
-  lt_cv_irix_exported_symbol=no
+else case e in #(
+  e) lt_cv_irix_exported_symbol=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-           LDFLAGS=$save_LDFLAGS
+           LDFLAGS=$save_LDFLAGS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_irix_exported_symbol" >&5
-printf "%s\n" "$lt_cv_irix_exported_symbol" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_irix_exported_symbol" >&5
+printf '%s\n' "$lt_cv_irix_exported_symbol" >&6; }
 	if test yes = "$lt_cv_irix_exported_symbol"; then
           archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations $wl-exports_file $wl$export_symbols -o $lib'
 	fi
@@ -11093,8 +11198,8 @@ printf "%s\n" "$lt_cv_irix_exported_symbol" >&6; }
     fi
   fi
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs" >&5
-printf "%s\n" "$ld_shlibs" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs" >&5
+printf '%s\n' "$ld_shlibs" >&6; }
 test no = "$ld_shlibs" && can_build_shared=no
 
 with_gnu_ld=$with_gnu_ld
@@ -11130,19 +11235,19 @@ x|xyes)
       # Test whether the compiler implicitly links with -lc since on some
       # systems, -lgcc has to come before -lc. If gcc already passes -lc
       # to ld, don't add -lc before -lgcc.
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether -lc should be explicitly linked in" >&5
+      { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking whether -lc should be explicitly linked in" >&5
 printf %s "checking whether -lc should be explicitly linked in... " >&6; }
 if test ${lt_cv_archive_cmds_need_lc+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  $RM conftest*
+else case e in #(
+  e) $RM conftest*
 	echo "$lt_simple_compile_test_code" > conftest.$ac_ext
 
 	if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } 2>conftest.err; then
 	  soname=conftest
 	  lib=conftest
@@ -11160,7 +11265,7 @@ else $as_nop
 	  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1\""; } >&5
   (eval $archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1) 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }
 	  then
 	    lt_cv_archive_cmds_need_lc=no
@@ -11172,10 +11277,11 @@ else $as_nop
 	  cat conftest.err 1>&5
 	fi
 	$RM conftest*
-
+	 ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_archive_cmds_need_lc" >&5
-printf "%s\n" "$lt_cv_archive_cmds_need_lc" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_archive_cmds_need_lc" >&5
+printf '%s\n' "$lt_cv_archive_cmds_need_lc" >&6; }
       archive_cmds_need_lc=$lt_cv_archive_cmds_need_lc
       ;;
     esac
@@ -11334,7 +11440,7 @@ esac
 
 
 
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking dynamic linker characteristics" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking dynamic linker characteristics" >&5
 printf %s "checking dynamic linker characteristics... " >&6; }
 
 if test yes = "$GCC"; then
@@ -11901,8 +12007,8 @@ linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
   if test ${lt_cv_shlibpath_overrides_runpath+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  lt_cv_shlibpath_overrides_runpath=no
+else case e in #(
+  e) lt_cv_shlibpath_overrides_runpath=no
     save_LDFLAGS=$LDFLAGS
     save_libdir=$libdir
     eval "libdir=/foo; wl=\"$lt_prog_compiler_wl\"; \
@@ -11929,7 +12035,8 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
     LDFLAGS=$save_LDFLAGS
     libdir=$save_libdir
-
+     ;;
+esac
 fi
 
   shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath
@@ -12162,8 +12269,8 @@ uts4*)
   dynamic_linker=no
   ;;
 esac
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $dynamic_linker" >&5
-printf "%s\n" "$dynamic_linker" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $dynamic_linker" >&5
+printf '%s\n' "$dynamic_linker" >&6; }
 test no = "$dynamic_linker" && can_build_shared=no
 
 variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
@@ -12284,7 +12391,7 @@ configure_time_lt_sys_library_path=$LT_SYS_LIBRARY_PATH
 
 
 
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking how to hardcode library paths into programs" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking how to hardcode library paths into programs" >&5
 printf %s "checking how to hardcode library paths into programs... " >&6; }
 hardcode_action=
 if test -n "$hardcode_libdir_flag_spec" ||
@@ -12309,8 +12416,8 @@ else
   # directories.
   hardcode_action=unsupported
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $hardcode_action" >&5
-printf "%s\n" "$hardcode_action" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $hardcode_action" >&5
+printf '%s\n' "$hardcode_action" >&6; }
 
 if test relink = "$hardcode_action" ||
    test yes = "$inherit_rpath"; then
@@ -12354,21 +12461,27 @@ else
 
   darwin*)
     # if libdl is installed we need to link against it
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
 printf %s "checking for dlopen in -ldl... " >&6; }
 if test ${ac_cv_lib_dl_dlopen+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-ldl  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char dlopen ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen (void);
 int
 main (void)
 {
@@ -12380,24 +12493,27 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_dl_dlopen=yes
-else $as_nop
-  ac_cv_lib_dl_dlopen=no
+else case e in #(
+  e) ac_cv_lib_dl_dlopen=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
-printf "%s\n" "$ac_cv_lib_dl_dlopen" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
+printf '%s\n' "$ac_cv_lib_dl_dlopen" >&6; }
 if test "x$ac_cv_lib_dl_dlopen" = xyes
 then :
   lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl
-else $as_nop
-
+else case e in #(
+  e)
     lt_cv_dlopen=dyld
     lt_cv_dlopen_libs=
     lt_cv_dlopen_self=yes
-
+     ;;
+esac
 fi
 
     ;;
@@ -12415,22 +12531,28 @@ fi
 if test "x$ac_cv_func_shl_load" = xyes
 then :
   lt_cv_dlopen=shl_load
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for shl_load in -ldld" >&5
+else case e in #(
+  e) { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for shl_load in -ldld" >&5
 printf %s "checking for shl_load in -ldld... " >&6; }
 if test ${ac_cv_lib_dld_shl_load+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-ldld  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char shl_load ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char shl_load (void);
 int
 main (void)
 {
@@ -12442,39 +12564,47 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_dld_shl_load=yes
-else $as_nop
-  ac_cv_lib_dld_shl_load=no
+else case e in #(
+  e) ac_cv_lib_dld_shl_load=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_shl_load" >&5
-printf "%s\n" "$ac_cv_lib_dld_shl_load" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_shl_load" >&5
+printf '%s\n' "$ac_cv_lib_dld_shl_load" >&6; }
 if test "x$ac_cv_lib_dld_shl_load" = xyes
 then :
   lt_cv_dlopen=shl_load lt_cv_dlopen_libs=-ldld
-else $as_nop
-  ac_fn_c_check_func "$LINENO" "dlopen" "ac_cv_func_dlopen"
+else case e in #(
+  e) ac_fn_c_check_func "$LINENO" "dlopen" "ac_cv_func_dlopen"
 if test "x$ac_cv_func_dlopen" = xyes
 then :
   lt_cv_dlopen=dlopen
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
+else case e in #(
+  e) { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
 printf %s "checking for dlopen in -ldl... " >&6; }
 if test ${ac_cv_lib_dl_dlopen+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-ldl  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char dlopen ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen (void);
 int
 main (void)
 {
@@ -12486,34 +12616,42 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_dl_dlopen=yes
-else $as_nop
-  ac_cv_lib_dl_dlopen=no
+else case e in #(
+  e) ac_cv_lib_dl_dlopen=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
-printf "%s\n" "$ac_cv_lib_dl_dlopen" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
+printf '%s\n' "$ac_cv_lib_dl_dlopen" >&6; }
 if test "x$ac_cv_lib_dl_dlopen" = xyes
 then :
   lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for dlopen in -lsvld" >&5
+else case e in #(
+  e) { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for dlopen in -lsvld" >&5
 printf %s "checking for dlopen in -lsvld... " >&6; }
 if test ${ac_cv_lib_svld_dlopen+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lsvld  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char dlopen ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen (void);
 int
 main (void)
 {
@@ -12525,34 +12663,42 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_svld_dlopen=yes
-else $as_nop
-  ac_cv_lib_svld_dlopen=no
+else case e in #(
+  e) ac_cv_lib_svld_dlopen=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_svld_dlopen" >&5
-printf "%s\n" "$ac_cv_lib_svld_dlopen" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_svld_dlopen" >&5
+printf '%s\n' "$ac_cv_lib_svld_dlopen" >&6; }
 if test "x$ac_cv_lib_svld_dlopen" = xyes
 then :
   lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-lsvld
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for dld_link in -ldld" >&5
+else case e in #(
+  e) { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for dld_link in -ldld" >&5
 printf %s "checking for dld_link in -ldld... " >&6; }
 if test ${ac_cv_lib_dld_dld_link+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-ldld  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char dld_link ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dld_link (void);
 int
 main (void)
 {
@@ -12564,33 +12710,40 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_dld_dld_link=yes
-else $as_nop
-  ac_cv_lib_dld_dld_link=no
+else case e in #(
+  e) ac_cv_lib_dld_dld_link=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_dld_link" >&5
-printf "%s\n" "$ac_cv_lib_dld_dld_link" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_dld_link" >&5
+printf '%s\n' "$ac_cv_lib_dld_dld_link" >&6; }
 if test "x$ac_cv_lib_dld_dld_link" = xyes
 then :
   lt_cv_dlopen=dld_link lt_cv_dlopen_libs=-ldld
 fi
 
-
+	       ;;
+esac
 fi
 
-
+	     ;;
+esac
 fi
 
-
+	   ;;
+esac
 fi
 
-
+	 ;;
+esac
 fi
 
-
+       ;;
+esac
 fi
 
     ;;
@@ -12613,13 +12766,13 @@ fi
     save_LIBS=$LIBS
     LIBS="$lt_cv_dlopen_libs $LIBS"
 
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether a program can dlopen itself" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking whether a program can dlopen itself" >&5
 printf %s "checking whether a program can dlopen itself... " >&6; }
 if test ${lt_cv_dlopen_self+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  	  if test yes = "$cross_compiling"; then :
+else case e in #(
+  e) 	  if test yes = "$cross_compiling"; then :
   lt_cv_dlopen_self=cross
 else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
@@ -12697,7 +12850,7 @@ _LT_EOF
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } && test -s "conftest$ac_exeext" 2>/dev/null; then
     (./conftest; exit; ) >&5 2>/dev/null
     lt_status=$?
@@ -12713,20 +12866,21 @@ _LT_EOF
 fi
 rm -fr conftest*
 
-
+     ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self" >&5
-printf "%s\n" "$lt_cv_dlopen_self" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self" >&5
+printf '%s\n' "$lt_cv_dlopen_self" >&6; }
 
     if test yes = "$lt_cv_dlopen_self"; then
       wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\"
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether a statically linked program can dlopen itself" >&5
+      { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking whether a statically linked program can dlopen itself" >&5
 printf %s "checking whether a statically linked program can dlopen itself... " >&6; }
 if test ${lt_cv_dlopen_self_static+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  	  if test yes = "$cross_compiling"; then :
+else case e in #(
+  e) 	  if test yes = "$cross_compiling"; then :
   lt_cv_dlopen_self_static=cross
 else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
@@ -12804,7 +12958,7 @@ _LT_EOF
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } && test -s "conftest$ac_exeext" 2>/dev/null; then
     (./conftest; exit; ) >&5 2>/dev/null
     lt_status=$?
@@ -12820,10 +12974,11 @@ _LT_EOF
 fi
 rm -fr conftest*
 
-
+       ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self_static" >&5
-printf "%s\n" "$lt_cv_dlopen_self_static" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self_static" >&5
+printf '%s\n' "$lt_cv_dlopen_self_static" >&6; }
     fi
 
     CPPFLAGS=$save_CPPFLAGS
@@ -12861,40 +13016,40 @@ fi
 
 striplib=
 old_striplib=
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether stripping libraries is possible" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking whether stripping libraries is possible" >&5
 printf %s "checking whether stripping libraries is possible... " >&6; }
 if test -z "$STRIP"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 else
   if $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then
     old_striplib="$STRIP --strip-debug"
     striplib="$STRIP --strip-unneeded"
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf '%s\n' "yes" >&6; }
   else
     case $host_os in
     darwin*)
       # FIXME - insert some real tests, host_os isn't really good enough
       striplib="$STRIP -x"
       old_striplib="$STRIP -S"
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+      { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf '%s\n' "yes" >&6; }
       ;;
     freebsd*)
       if $STRIP -V 2>&1 | $GREP "elftoolchain" >/dev/null; then
         old_striplib="$STRIP --strip-debug"
         striplib="$STRIP --strip-unneeded"
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf '%s\n' "yes" >&6; }
       else
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
       fi
       ;;
     *)
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+      { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
       ;;
     esac
   fi
@@ -12912,12 +13067,12 @@ fi
 
 
   # Report what library types will actually be built
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if libtool supports shared libraries" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking if libtool supports shared libraries" >&5
 printf %s "checking if libtool supports shared libraries... " >&6; }
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $can_build_shared" >&5
-printf "%s\n" "$can_build_shared" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $can_build_shared" >&5
+printf '%s\n' "$can_build_shared" >&6; }
 
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to build shared libraries" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking whether to build shared libraries" >&5
 printf %s "checking whether to build shared libraries... " >&6; }
   test no = "$can_build_shared" && enable_shared=no
 
@@ -12942,15 +13097,15 @@ printf %s "checking whether to build shared libraries... " >&6; }
     fi
     ;;
   esac
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $enable_shared" >&5
-printf "%s\n" "$enable_shared" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $enable_shared" >&5
+printf '%s\n' "$enable_shared" >&6; }
 
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to build static libraries" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking whether to build static libraries" >&5
 printf %s "checking whether to build static libraries... " >&6; }
   # Make sure either enable_shared or enable_static is yes.
   test yes = "$enable_shared" || enable_static=yes
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $enable_static" >&5
-printf "%s\n" "$enable_static" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $enable_static" >&5
+printf '%s\n' "$enable_static" >&6; }
 
 
 
@@ -12989,13 +13144,13 @@ CC=$lt_save_CC
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}windres", so it can be a program name with args.
 set dummy ${ac_tool_prefix}windres; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_RC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$RC"; then
+else case e in #(
+  e) if test -n "$RC"; then
   ac_cv_prog_RC="$RC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -13010,22 +13165,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_RC="${ac_tool_prefix}windres"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 RC=$ac_cv_prog_RC
 if test -n "$RC"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $RC" >&5
-printf "%s\n" "$RC" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $RC" >&5
+printf '%s\n' "$RC" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -13034,13 +13190,13 @@ if test -z "$ac_cv_prog_RC"; then
   ac_ct_RC=$RC
   # Extract the first word of "windres", so it can be a program name with args.
 set dummy windres; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_RC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_RC"; then
+else case e in #(
+  e) if test -n "$ac_ct_RC"; then
   ac_cv_prog_ac_ct_RC="$ac_ct_RC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -13055,22 +13211,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_RC="windres"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_RC=$ac_cv_prog_ac_ct_RC
 if test -n "$ac_ct_RC"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RC" >&5
-printf "%s\n" "$ac_ct_RC" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RC" >&5
+printf '%s\n' "$ac_ct_RC" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
   if test "x$ac_ct_RC" = x; then
@@ -13078,8 +13235,8 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf '%s\n' "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     RC=$ac_ct_RC
@@ -13186,17 +13343,17 @@ LT_REVISION=$SDL_INTERFACE_AGE
 
 
 
-for ac_prog in gawk mawk nawk awk
+for ac_prog in gawk mawk nawk awk 'busybox awk'
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_AWK+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$AWK"; then
+else case e in #(
+  e) if test -n "$AWK"; then
   ac_cv_prog_AWK="$AWK" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -13211,22 +13368,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_AWK="$ac_prog"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 AWK=$ac_cv_prog_AWK
 if test -n "$AWK"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $AWK" >&5
-printf "%s\n" "$AWK" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $AWK" >&5
+printf '%s\n' "$AWK" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -13241,13 +13399,13 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
 set dummy ${ac_tool_prefix}gcc; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC"; then
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -13262,22 +13420,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="${ac_tool_prefix}gcc"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
-printf "%s\n" "$CC" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf '%s\n' "$CC" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -13286,13 +13445,13 @@ if test -z "$ac_cv_prog_CC"; then
   ac_ct_CC=$CC
   # Extract the first word of "gcc", so it can be a program name with args.
 set dummy gcc; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_CC"; then
+else case e in #(
+  e) if test -n "$ac_ct_CC"; then
   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -13307,22 +13466,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_CC="gcc"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
-printf "%s\n" "$ac_ct_CC" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+printf '%s\n' "$ac_ct_CC" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
   if test "x$ac_ct_CC" = x; then
@@ -13330,8 +13490,8 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf '%s\n' "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     CC=$ac_ct_CC
@@ -13344,13 +13504,13 @@ if test -z "$CC"; then
           if test -n "$ac_tool_prefix"; then
     # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
 set dummy ${ac_tool_prefix}cc; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC"; then
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -13365,22 +13525,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="${ac_tool_prefix}cc"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
-printf "%s\n" "$CC" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf '%s\n' "$CC" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -13389,13 +13550,13 @@ fi
 if test -z "$CC"; then
   # Extract the first word of "cc", so it can be a program name with args.
 set dummy cc; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC"; then
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
   ac_prog_rejected=no
@@ -13415,7 +13576,7 @@ do
        continue
      fi
     ac_cv_prog_CC="cc"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -13434,15 +13595,16 @@ if test $ac_prog_rejected = yes; then
     ac_cv_prog_CC="$as_dir$ac_word${1+' '}$@"
   fi
 fi
-fi
+fi ;;
+esac
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
-printf "%s\n" "$CC" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf '%s\n' "$CC" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -13453,13 +13615,13 @@ if test -z "$CC"; then
   do
     # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
 set dummy $ac_tool_prefix$ac_prog; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC"; then
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -13474,22 +13636,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
-printf "%s\n" "$CC" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf '%s\n' "$CC" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -13502,13 +13665,13 @@ if test -z "$CC"; then
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_CC"; then
+else case e in #(
+  e) if test -n "$ac_ct_CC"; then
   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -13523,22 +13686,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_CC="$ac_prog"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
-printf "%s\n" "$ac_ct_CC" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+printf '%s\n' "$ac_ct_CC" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -13550,8 +13714,8 @@ done
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf '%s\n' "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     CC=$ac_ct_CC
@@ -13563,13 +13727,13 @@ if test -z "$CC"; then
   if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}clang", so it can be a program name with args.
 set dummy ${ac_tool_prefix}clang; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC"; then
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -13584,22 +13748,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="${ac_tool_prefix}clang"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
-printf "%s\n" "$CC" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf '%s\n' "$CC" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -13608,13 +13773,13 @@ if test -z "$ac_cv_prog_CC"; then
   ac_ct_CC=$CC
   # Extract the first word of "clang", so it can be a program name with args.
 set dummy clang; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_CC"; then
+else case e in #(
+  e) if test -n "$ac_ct_CC"; then
   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -13629,22 +13794,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_CC="clang"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
-printf "%s\n" "$ac_ct_CC" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+printf '%s\n' "$ac_ct_CC" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
   if test "x$ac_ct_CC" = x; then
@@ -13652,8 +13818,8 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf '%s\n' "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     CC=$ac_ct_CC
@@ -13665,13 +13831,13 @@ fi
 fi
 
 
-test -z "$CC" && { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+test -z "$CC" && { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf '%s\n' "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "no acceptable C compiler found in \$PATH
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
 
 # Provide some information about the compiler.
-printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
+printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
 set X $ac_compile
 ac_compiler=$2
 for ac_option in --version -v -V -qversion -version; do
@@ -13681,7 +13847,7 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-printf "%s\n" "$ac_try_echo"; } >&5
+printf '%s\n' "$ac_try_echo"; } >&5
   (eval "$ac_compiler $ac_option >&5") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
@@ -13691,17 +13857,17 @@ printf "%s\n" "$ac_try_echo"; } >&5
     cat conftest.er1 >&5
   fi
   rm -f conftest.er1 conftest.err
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }
 done
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports GNU C" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports GNU C" >&5
 printf %s "checking whether the compiler supports GNU C... " >&6; }
 if test ${ac_cv_c_compiler_gnu+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -13718,15 +13884,17 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_compiler_gnu=yes
-else $as_nop
-  ac_compiler_gnu=no
+else case e in #(
+  e) ac_compiler_gnu=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 ac_cv_c_compiler_gnu=$ac_compiler_gnu
-
+ ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
-printf "%s\n" "$ac_cv_c_compiler_gnu" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
+printf '%s\n' "$ac_cv_c_compiler_gnu" >&6; }
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 if test $ac_compiler_gnu = yes; then
@@ -13736,13 +13904,13 @@ else
 fi
 ac_test_CFLAGS=${CFLAGS+y}
 ac_save_CFLAGS=$CFLAGS
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
 printf %s "checking whether $CC accepts -g... " >&6; }
 if test ${ac_cv_prog_cc_g+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_save_c_werror_flag=$ac_c_werror_flag
+else case e in #(
+  e) ac_save_c_werror_flag=$ac_c_werror_flag
    ac_c_werror_flag=yes
    ac_cv_prog_cc_g=no
    CFLAGS="-g"
@@ -13760,8 +13928,8 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_prog_cc_g=yes
-else $as_nop
-  CFLAGS=""
+else case e in #(
+  e) CFLAGS=""
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -13776,8 +13944,8 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
 
-else $as_nop
-  ac_c_werror_flag=$ac_save_c_werror_flag
+else case e in #(
+  e) ac_c_werror_flag=$ac_save_c_werror_flag
 	 CFLAGS="-g"
 	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -13794,15 +13962,18 @@ if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_prog_cc_g=yes
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+   ac_c_werror_flag=$ac_save_c_werror_flag ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-   ac_c_werror_flag=$ac_save_c_werror_flag
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
-printf "%s\n" "$ac_cv_prog_cc_g" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
+printf '%s\n' "$ac_cv_prog_cc_g" >&6; }
 if test $ac_test_CFLAGS; then
   CFLAGS=$ac_save_CFLAGS
 elif test $ac_cv_prog_cc_g = yes; then
@@ -13821,19 +13992,68 @@ fi
 ac_prog_cc_stdc=no
 if test x$ac_prog_cc_stdc = xno
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C11 features" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C23 features" >&5
+printf %s "checking for $CC option to enable C23 features... " >&6; }
+if test ${ac_cv_prog_cc_c23+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_cv_prog_cc_c23=no
+ac_save_CC=$CC
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$ac_c_conftest_c23_program
+_ACEOF
+for ac_arg in '' -std=gnu23
+do
+  CC="$ac_save_CC $ac_arg"
+  if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_prog_cc_c23=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam
+  test "x$ac_cv_prog_cc_c23" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CC=$ac_save_CC ;;
+esac
+fi
+
+if test "x$ac_cv_prog_cc_c23" = xno
+then :
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+printf '%s\n' "unsupported" >&6; }
+else case e in #(
+  e) if test "x$ac_cv_prog_cc_c23" = x
+then :
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+printf '%s\n' "none needed" >&6; }
+else case e in #(
+  e) { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c23" >&5
+printf '%s\n' "$ac_cv_prog_cc_c23" >&6; }
+     CC="$CC $ac_cv_prog_cc_c23" ;;
+esac
+fi
+  ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c23
+  ac_prog_cc_stdc=c23 ;;
+esac
+fi
+fi
+if test x$ac_prog_cc_stdc = xno
+then :
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C11 features" >&5
 printf %s "checking for $CC option to enable C11 features... " >&6; }
 if test ${ac_cv_prog_cc_c11+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_prog_cc_c11=no
+else case e in #(
+  e) ac_cv_prog_cc_c11=no
 ac_save_CC=$CC
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $ac_c_conftest_c11_program
 _ACEOF
-for ac_arg in '' -std=gnu11
+for ac_arg in '' -std=gnu11 -std:c11
 do
   CC="$ac_save_CC $ac_arg"
   if ac_fn_c_try_compile "$LINENO"
@@ -13844,36 +14064,39 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam
   test "x$ac_cv_prog_cc_c11" != "xno" && break
 done
 rm -f conftest.$ac_ext
-CC=$ac_save_CC
+CC=$ac_save_CC ;;
+esac
 fi
 
 if test "x$ac_cv_prog_cc_c11" = xno
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
-printf "%s\n" "unsupported" >&6; }
-else $as_nop
-  if test "x$ac_cv_prog_cc_c11" = x
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+printf '%s\n' "unsupported" >&6; }
+else case e in #(
+  e) if test "x$ac_cv_prog_cc_c11" = x
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
-printf "%s\n" "none needed" >&6; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c11" >&5
-printf "%s\n" "$ac_cv_prog_cc_c11" >&6; }
-     CC="$CC $ac_cv_prog_cc_c11"
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+printf '%s\n' "none needed" >&6; }
+else case e in #(
+  e) { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c11" >&5
+printf '%s\n' "$ac_cv_prog_cc_c11" >&6; }
+     CC="$CC $ac_cv_prog_cc_c11" ;;
+esac
 fi
   ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c11
-  ac_prog_cc_stdc=c11
+  ac_prog_cc_stdc=c11 ;;
+esac
 fi
 fi
 if test x$ac_prog_cc_stdc = xno
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C99 features" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C99 features" >&5
 printf %s "checking for $CC option to enable C99 features... " >&6; }
 if test ${ac_cv_prog_cc_c99+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_prog_cc_c99=no
+else case e in #(
+  e) ac_cv_prog_cc_c99=no
 ac_save_CC=$CC
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -13890,36 +14113,39 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam
   test "x$ac_cv_prog_cc_c99" != "xno" && break
 done
 rm -f conftest.$ac_ext
-CC=$ac_save_CC
+CC=$ac_save_CC ;;
+esac
 fi
 
 if test "x$ac_cv_prog_cc_c99" = xno
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
-printf "%s\n" "unsupported" >&6; }
-else $as_nop
-  if test "x$ac_cv_prog_cc_c99" = x
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+printf '%s\n' "unsupported" >&6; }
+else case e in #(
+  e) if test "x$ac_cv_prog_cc_c99" = x
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
-printf "%s\n" "none needed" >&6; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c99" >&5
-printf "%s\n" "$ac_cv_prog_cc_c99" >&6; }
-     CC="$CC $ac_cv_prog_cc_c99"
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+printf '%s\n' "none needed" >&6; }
+else case e in #(
+  e) { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c99" >&5
+printf '%s\n' "$ac_cv_prog_cc_c99" >&6; }
+     CC="$CC $ac_cv_prog_cc_c99" ;;
+esac
 fi
   ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c99
-  ac_prog_cc_stdc=c99
+  ac_prog_cc_stdc=c99 ;;
+esac
 fi
 fi
 if test x$ac_prog_cc_stdc = xno
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C89 features" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C89 features" >&5
 printf %s "checking for $CC option to enable C89 features... " >&6; }
 if test ${ac_cv_prog_cc_c89+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_prog_cc_c89=no
+else case e in #(
+  e) ac_cv_prog_cc_c89=no
 ac_save_CC=$CC
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -13936,25 +14162,28 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam
   test "x$ac_cv_prog_cc_c89" != "xno" && break
 done
 rm -f conftest.$ac_ext
-CC=$ac_save_CC
+CC=$ac_save_CC ;;
+esac
 fi
 
 if test "x$ac_cv_prog_cc_c89" = xno
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
-printf "%s\n" "unsupported" >&6; }
-else $as_nop
-  if test "x$ac_cv_prog_cc_c89" = x
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+printf '%s\n' "unsupported" >&6; }
+else case e in #(
+  e) if test "x$ac_cv_prog_cc_c89" = x
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
-printf "%s\n" "none needed" >&6; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
-printf "%s\n" "$ac_cv_prog_cc_c89" >&6; }
-     CC="$CC $ac_cv_prog_cc_c89"
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+printf '%s\n' "none needed" >&6; }
+else case e in #(
+  e) { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
+printf '%s\n' "$ac_cv_prog_cc_c89" >&6; }
+     CC="$CC $ac_cv_prog_cc_c89" ;;
+esac
 fi
   ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c89
-  ac_prog_cc_stdc=c89
+  ac_prog_cc_stdc=c89 ;;
+esac
 fi
 fi
 
@@ -13964,12 +14193,6 @@ ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
-
-
-
-
-
-
 ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ -13984,13 +14207,13 @@ if test -z "$CXX"; then
   do
     # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
 set dummy $ac_tool_prefix$ac_prog; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_CXX+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CXX"; then
+else case e in #(
+  e) if test -n "$CXX"; then
   ac_cv_prog_CXX="$CXX" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -14005,22 +14228,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_CXX="$ac_tool_prefix$ac_prog"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CXX=$ac_cv_prog_CXX
 if test -n "$CXX"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CXX" >&5
-printf "%s\n" "$CXX" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $CXX" >&5
+printf '%s\n' "$CXX" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -14033,13 +14257,13 @@ if test -z "$CXX"; then
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_CXX+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_CXX"; then
+else case e in #(
+  e) if test -n "$ac_ct_CXX"; then
   ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -14054,22 +14278,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_CXX="$ac_prog"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
 if test -n "$ac_ct_CXX"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CXX" >&5
-printf "%s\n" "$ac_ct_CXX" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CXX" >&5
+printf '%s\n' "$ac_ct_CXX" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -14081,8 +14306,8 @@ done
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf '%s\n' "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     CXX=$ac_ct_CXX
@@ -14092,7 +14317,7 @@ fi
   fi
 fi
 # Provide some information about the compiler.
-printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C++ compiler version" >&5
+printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for C++ compiler version" >&5
 set X $ac_compile
 ac_compiler=$2
 for ac_option in --version -v -V -qversion; do
@@ -14102,7 +14327,7 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-printf "%s\n" "$ac_try_echo"; } >&5
+printf '%s\n' "$ac_try_echo"; } >&5
   (eval "$ac_compiler $ac_option >&5") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
@@ -14112,17 +14337,17 @@ printf "%s\n" "$ac_try_echo"; } >&5
     cat conftest.er1 >&5
   fi
   rm -f conftest.er1 conftest.err
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }
 done
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports GNU C++" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports GNU C++" >&5
 printf %s "checking whether the compiler supports GNU C++... " >&6; }
 if test ${ac_cv_cxx_compiler_gnu+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -14139,15 +14364,17 @@ _ACEOF
 if ac_fn_cxx_try_compile "$LINENO"
 then :
   ac_compiler_gnu=yes
-else $as_nop
-  ac_compiler_gnu=no
+else case e in #(
+  e) ac_compiler_gnu=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 ac_cv_cxx_compiler_gnu=$ac_compiler_gnu
-
+ ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_compiler_gnu" >&5
-printf "%s\n" "$ac_cv_cxx_compiler_gnu" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_compiler_gnu" >&5
+printf '%s\n' "$ac_cv_cxx_compiler_gnu" >&6; }
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
 if test $ac_compiler_gnu = yes; then
@@ -14157,13 +14384,13 @@ else
 fi
 ac_test_CXXFLAGS=${CXXFLAGS+y}
 ac_save_CXXFLAGS=$CXXFLAGS
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -g" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -g" >&5
 printf %s "checking whether $CXX accepts -g... " >&6; }
 if test ${ac_cv_prog_cxx_g+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_save_cxx_werror_flag=$ac_cxx_werror_flag
+else case e in #(
+  e) ac_save_cxx_werror_flag=$ac_cxx_werror_flag
    ac_cxx_werror_flag=yes
    ac_cv_prog_cxx_g=no
    CXXFLAGS="-g"
@@ -14181,8 +14408,8 @@ _ACEOF
 if ac_fn_cxx_try_compile "$LINENO"
 then :
   ac_cv_prog_cxx_g=yes
-else $as_nop
-  CXXFLAGS=""
+else case e in #(
+  e) CXXFLAGS=""
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -14197,8 +14424,8 @@ _ACEOF
 if ac_fn_cxx_try_compile "$LINENO"
 then :
 
-else $as_nop
-  ac_cxx_werror_flag=$ac_save_cxx_werror_flag
+else case e in #(
+  e) ac_cxx_werror_flag=$ac_save_cxx_werror_flag
 	 CXXFLAGS="-g"
 	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -14215,15 +14442,18 @@ if ac_fn_cxx_try_compile "$LINENO"
 then :
   ac_cv_prog_cxx_g=yes
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+   ac_cxx_werror_flag=$ac_save_cxx_werror_flag ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-   ac_cxx_werror_flag=$ac_save_cxx_werror_flag
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_g" >&5
-printf "%s\n" "$ac_cv_prog_cxx_g" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_g" >&5
+printf '%s\n' "$ac_cv_prog_cxx_g" >&6; }
 if test $ac_test_CXXFLAGS; then
   CXXFLAGS=$ac_save_CXXFLAGS
 elif test $ac_cv_prog_cxx_g = yes; then
@@ -14239,100 +14469,6 @@ else
     CXXFLAGS=
   fi
 fi
-ac_prog_cxx_stdcxx=no
-if test x$ac_prog_cxx_stdcxx = xno
-then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CXX option to enable C++11 features" >&5
-printf %s "checking for $CXX option to enable C++11 features... " >&6; }
-if test ${ac_cv_prog_cxx_cxx11+y}
-then :
-  printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_prog_cxx_cxx11=no
-ac_save_CXX=$CXX
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-$ac_cxx_conftest_cxx11_program
-_ACEOF
-for ac_arg in '' -std=gnu++11 -std=gnu++0x -std=c++11 -std=c++0x -qlanglvl=extended0x -AA
-do
-  CXX="$ac_save_CXX $ac_arg"
-  if ac_fn_cxx_try_compile "$LINENO"
-then :
-  ac_cv_prog_cxx_cxx11=$ac_arg
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam
-  test "x$ac_cv_prog_cxx_cxx11" != "xno" && break
-done
-rm -f conftest.$ac_ext
-CXX=$ac_save_CXX
-fi
-
-if test "x$ac_cv_prog_cxx_cxx11" = xno
-then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
-printf "%s\n" "unsupported" >&6; }
-else $as_nop
-  if test "x$ac_cv_prog_cxx_cxx11" = x
-then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
-printf "%s\n" "none needed" >&6; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_cxx11" >&5
-printf "%s\n" "$ac_cv_prog_cxx_cxx11" >&6; }
-     CXX="$CXX $ac_cv_prog_cxx_cxx11"
-fi
-  ac_cv_prog_cxx_stdcxx=$ac_cv_prog_cxx_cxx11
-  ac_prog_cxx_stdcxx=cxx11
-fi
-fi
-if test x$ac_prog_cxx_stdcxx = xno
-then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CXX option to enable C++98 features" >&5
-printf %s "checking for $CXX option to enable C++98 features... " >&6; }
-if test ${ac_cv_prog_cxx_cxx98+y}
-then :
-  printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_prog_cxx_cxx98=no
-ac_save_CXX=$CXX
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-$ac_cxx_conftest_cxx98_program
-_ACEOF
-for ac_arg in '' -std=gnu++98 -std=c++98 -qlanglvl=extended -AA
-do
-  CXX="$ac_save_CXX $ac_arg"
-  if ac_fn_cxx_try_compile "$LINENO"
-then :
-  ac_cv_prog_cxx_cxx98=$ac_arg
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam
-  test "x$ac_cv_prog_cxx_cxx98" != "xno" && break
-done
-rm -f conftest.$ac_ext
-CXX=$ac_save_CXX
-fi
-
-if test "x$ac_cv_prog_cxx_cxx98" = xno
-then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
-printf "%s\n" "unsupported" >&6; }
-else $as_nop
-  if test "x$ac_cv_prog_cxx_cxx98" = x
-then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
-printf "%s\n" "none needed" >&6; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_cxx98" >&5
-printf "%s\n" "$ac_cv_prog_cxx_cxx98" >&6; }
-     CXX="$CXX $ac_cv_prog_cxx_cxx98"
-fi
-  ac_cv_prog_cxx_stdcxx=$ac_cv_prog_cxx_cxx98
-  ac_prog_cxx_stdcxx=cxx98
-fi
-fi
-
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ -14357,14 +14493,14 @@ ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking how to run the C++ preprocessor" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking how to run the C++ preprocessor" >&5
 printf %s "checking how to run the C++ preprocessor... " >&6; }
 if test -z "$CXXCPP"; then
   if test ${ac_cv_prog_CXXCPP+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-      # Double quotes because $CXX needs to be expanded
+else case e in #(
+  e)     # Double quotes because $CXX needs to be expanded
     for CXXCPP in "$CXX -E" cpp /lib/cpp
     do
       ac_preproc_ok=false
@@ -14382,9 +14518,10 @@ _ACEOF
 if ac_fn_cxx_try_cpp "$LINENO"
 then :
 
-else $as_nop
-  # Broken: fails on valid input.
-continue
+else case e in #(
+  e) # Broken: fails on valid input.
+continue ;;
+esac
 fi
 rm -f conftest.err conftest.i conftest.$ac_ext
 
@@ -14398,15 +14535,16 @@ if ac_fn_cxx_try_cpp "$LINENO"
 then :
   # Broken: success on invalid input.
 continue
-else $as_nop
-  # Passes both tests.
+else case e in #(
+  e) # Passes both tests.
 ac_preproc_ok=:
-break
+break ;;
+esac
 fi
 rm -f conftest.err conftest.i conftest.$ac_ext
 
 done
-# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+# Because of 'break', _AC_PREPROC_IFELSE's cleaning code was skipped.
 rm -f conftest.i conftest.err conftest.$ac_ext
 if $ac_preproc_ok
 then :
@@ -14415,14 +14553,15 @@ fi
 
     done
     ac_cv_prog_CXXCPP=$CXXCPP
-
+   ;;
+esac
 fi
   CXXCPP=$ac_cv_prog_CXXCPP
 else
   ac_cv_prog_CXXCPP=$CXXCPP
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CXXCPP" >&5
-printf "%s\n" "$CXXCPP" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $CXXCPP" >&5
+printf '%s\n' "$CXXCPP" >&6; }
 ac_preproc_ok=false
 for ac_cxx_preproc_warn_flag in '' yes
 do
@@ -14438,9 +14577,10 @@ _ACEOF
 if ac_fn_cxx_try_cpp "$LINENO"
 then :
 
-else $as_nop
-  # Broken: fails on valid input.
-continue
+else case e in #(
+  e) # Broken: fails on valid input.
+continue ;;
+esac
 fi
 rm -f conftest.err conftest.i conftest.$ac_ext
 
@@ -14454,24 +14594,26 @@ if ac_fn_cxx_try_cpp "$LINENO"
 then :
   # Broken: success on invalid input.
 continue
-else $as_nop
-  # Passes both tests.
+else case e in #(
+  e) # Passes both tests.
 ac_preproc_ok=:
-break
+break ;;
+esac
 fi
 rm -f conftest.err conftest.i conftest.$ac_ext
 
 done
-# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+# Because of 'break', _AC_PREPROC_IFELSE's cleaning code was skipped.
 rm -f conftest.i conftest.err conftest.$ac_ext
 if $ac_preproc_ok
 then :
 
-else $as_nop
-  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+else case e in #(
+  e) { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf '%s\n' "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "C++ preprocessor \"$CXXCPP\" fails sanity check
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; } ;;
+esac
 fi
 
 ac_ext=c
@@ -14608,14 +14750,15 @@ cc_basename=$func_cc_basename_result
 if test ${with_gnu_ld+y}
 then :
   withval=$with_gnu_ld; test no = "$withval" || with_gnu_ld=yes
-else $as_nop
-  with_gnu_ld=no
+else case e in #(
+  e) with_gnu_ld=no ;;
+esac
 fi
 
 ac_prog=ld
 if test yes = "$GCC"; then
   # Check if gcc -print-prog-name=ld gives a path.
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ld used by $CC" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for ld used by $CC" >&5
 printf %s "checking for ld used by $CC... " >&6; }
   case $host in
   *-*-mingw* | *-*-windows*)
@@ -14645,17 +14788,17 @@ printf %s "checking for ld used by $CC... " >&6; }
     ;;
   esac
 elif test yes = "$with_gnu_ld"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GNU ld" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for GNU ld" >&5
 printf %s "checking for GNU ld... " >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for non-GNU ld" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for non-GNU ld" >&5
 printf %s "checking for non-GNU ld... " >&6; }
 fi
 if test ${lt_cv_path_LD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -z "$LD"; then
+else case e in #(
+  e) if test -z "$LD"; then
   lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
   for ac_dir in $PATH; do
     IFS=$lt_save_ifs
@@ -14678,25 +14821,26 @@ else $as_nop
   IFS=$lt_save_ifs
 else
   lt_cv_path_LD=$LD # Let the user override the test with a path.
-fi
+fi ;;
+esac
 fi
 
 LD=$lt_cv_path_LD
 if test -n "$LD"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $LD" >&5
-printf "%s\n" "$LD" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $LD" >&5
+printf '%s\n' "$LD" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 test -z "$LD" && as_fn_error $? "no acceptable ld found in \$PATH" "$LINENO" 5
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5
 printf %s "checking if the linker ($LD) is GNU ld... " >&6; }
 if test ${lt_cv_prog_gnu_ld+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  # I'd rather use --version here, but apparently some GNU lds only accept -v.
+else case e in #(
+  e) # I'd rather use --version here, but apparently some GNU lds only accept -v.
 case `$LD -v 2>&1 </dev/null` in
 *GNU* | *'with BFD'*)
   lt_cv_prog_gnu_ld=yes
@@ -14704,10 +14848,11 @@ case `$LD -v 2>&1 </dev/null` in
 *)
   lt_cv_prog_gnu_ld=no
   ;;
+esac ;;
 esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_gnu_ld" >&5
-printf "%s\n" "$lt_cv_prog_gnu_ld" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_gnu_ld" >&5
+printf '%s\n' "$lt_cv_prog_gnu_ld" >&6; }
 with_gnu_ld=$lt_cv_prog_gnu_ld
 
 
@@ -14761,7 +14906,7 @@ with_gnu_ld=$lt_cv_prog_gnu_ld
     fi
 
     # PORTME: fill in a description of your system's C++ link characteristics
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5
 printf %s "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; }
     ld_shlibs_CXX=yes
     case $host_os in
@@ -14903,8 +15048,8 @@ else
   if test ${lt_cv_aix_libpath__CXX+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -14936,7 +15081,8 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam \
   if test -z "$lt_cv_aix_libpath__CXX"; then
     lt_cv_aix_libpath__CXX=/usr/lib:/lib
   fi
-
+   ;;
+esac
 fi
 
   aix_libpath=$lt_cv_aix_libpath__CXX
@@ -14959,8 +15105,8 @@ else
   if test ${lt_cv_aix_libpath__CXX+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -14992,7 +15138,8 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam \
   if test -z "$lt_cv_aix_libpath__CXX"; then
     lt_cv_aix_libpath__CXX=/usr/lib:/lib
   fi
-
+   ;;
+esac
 fi
 
   aix_libpath=$lt_cv_aix_libpath__CXX
@@ -15838,8 +15985,8 @@ fi
         ;;
     esac
 
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs_CXX" >&5
-printf "%s\n" "$ld_shlibs_CXX" >&6; }
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs_CXX" >&5
+printf '%s\n' "$ld_shlibs_CXX" >&6; }
     test no = "$ld_shlibs_CXX" && can_build_shared=no
 
     GCC_CXX=$GXX
@@ -15877,7 +16024,7 @@ esac
 if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   # Parse the compiler output and extract the necessary
   # objects, libraries and library flags.
@@ -16359,29 +16506,30 @@ case $host_os in
     ;;
 esac
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $compiler option to produce PIC" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $compiler option to produce PIC" >&5
 printf %s "checking for $compiler option to produce PIC... " >&6; }
 if test ${lt_cv_prog_compiler_pic_CXX+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  lt_cv_prog_compiler_pic_CXX=$lt_prog_compiler_pic_CXX
+else case e in #(
+  e) lt_cv_prog_compiler_pic_CXX=$lt_prog_compiler_pic_CXX ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_CXX" >&5
-printf "%s\n" "$lt_cv_prog_compiler_pic_CXX" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_CXX" >&5
+printf '%s\n' "$lt_cv_prog_compiler_pic_CXX" >&6; }
 lt_prog_compiler_pic_CXX=$lt_cv_prog_compiler_pic_CXX
 
 #
 # Check to make sure the PIC flag actually works.
 #
 if test -n "$lt_prog_compiler_pic_CXX"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if $compiler PIC flag $lt_prog_compiler_pic_CXX works" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking if $compiler PIC flag $lt_prog_compiler_pic_CXX works" >&5
 printf %s "checking if $compiler PIC flag $lt_prog_compiler_pic_CXX works... " >&6; }
 if test ${lt_cv_prog_compiler_pic_works_CXX+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  lt_cv_prog_compiler_pic_works_CXX=no
+else case e in #(
+  e) lt_cv_prog_compiler_pic_works_CXX=no
    ac_outfile=conftest.$ac_objext
    echo "$lt_simple_compile_test_code" > conftest.$ac_ext
    lt_compiler_flag="$lt_prog_compiler_pic_CXX -DPIC"  ## exclude from sc_useless_quotes_in_assignment
@@ -16409,10 +16557,11 @@ else $as_nop
      fi
    fi
    $RM conftest*
-
+ ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_works_CXX" >&5
-printf "%s\n" "$lt_cv_prog_compiler_pic_works_CXX" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_works_CXX" >&5
+printf '%s\n' "$lt_cv_prog_compiler_pic_works_CXX" >&6; }
 
 if test yes = "$lt_cv_prog_compiler_pic_works_CXX"; then
     case $lt_prog_compiler_pic_CXX in
@@ -16434,13 +16583,13 @@ fi
 # Check to make sure the static flag actually works.
 #
 wl=$lt_prog_compiler_wl_CXX eval lt_tmp_static_flag=\"$lt_prog_compiler_static_CXX\"
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if $compiler static flag $lt_tmp_static_flag works" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking if $compiler static flag $lt_tmp_static_flag works" >&5
 printf %s "checking if $compiler static flag $lt_tmp_static_flag works... " >&6; }
 if test ${lt_cv_prog_compiler_static_works_CXX+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  lt_cv_prog_compiler_static_works_CXX=no
+else case e in #(
+  e) lt_cv_prog_compiler_static_works_CXX=no
    save_LDFLAGS=$LDFLAGS
    LDFLAGS="$LDFLAGS $lt_tmp_static_flag"
    echo "$lt_simple_link_test_code" > conftest.$ac_ext
@@ -16461,10 +16610,11 @@ else $as_nop
    fi
    $RM -r conftest*
    LDFLAGS=$save_LDFLAGS
-
+ ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_static_works_CXX" >&5
-printf "%s\n" "$lt_cv_prog_compiler_static_works_CXX" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_static_works_CXX" >&5
+printf '%s\n' "$lt_cv_prog_compiler_static_works_CXX" >&6; }
 
 if test yes = "$lt_cv_prog_compiler_static_works_CXX"; then
     :
@@ -16475,13 +16625,13 @@ fi
 
 
 
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
 printf %s "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
 if test ${lt_cv_prog_compiler_c_o_CXX+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  lt_cv_prog_compiler_c_o_CXX=no
+else case e in #(
+  e) lt_cv_prog_compiler_c_o_CXX=no
    $RM -r conftest 2>/dev/null
    mkdir conftest
    cd conftest
@@ -16521,20 +16671,21 @@ else $as_nop
    cd ..
    $RM -r conftest
    $RM conftest*
-
+ ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o_CXX" >&5
-printf "%s\n" "$lt_cv_prog_compiler_c_o_CXX" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o_CXX" >&5
+printf '%s\n' "$lt_cv_prog_compiler_c_o_CXX" >&6; }
 
 
 
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
 printf %s "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
 if test ${lt_cv_prog_compiler_c_o_CXX+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  lt_cv_prog_compiler_c_o_CXX=no
+else case e in #(
+  e) lt_cv_prog_compiler_c_o_CXX=no
    $RM -r conftest 2>/dev/null
    mkdir conftest
    cd conftest
@@ -16574,10 +16725,11 @@ else $as_nop
    cd ..
    $RM -r conftest
    $RM conftest*
-
+ ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o_CXX" >&5
-printf "%s\n" "$lt_cv_prog_compiler_c_o_CXX" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o_CXX" >&5
+printf '%s\n' "$lt_cv_prog_compiler_c_o_CXX" >&6; }
 
 
 
@@ -16585,7 +16737,7 @@ printf "%s\n" "$lt_cv_prog_compiler_c_o_CXX" >&6; }
 hard_links=nottested
 if test no = "$lt_cv_prog_compiler_c_o_CXX" && test no != "$need_locks"; then
   # do not overwrite the value of need_locks provided by the user
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if we can lock with hard links" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking if we can lock with hard links" >&5
 printf %s "checking if we can lock with hard links... " >&6; }
   hard_links=yes
   $RM conftest*
@@ -16593,11 +16745,11 @@ printf %s "checking if we can lock with hard links... " >&6; }
   touch conftest.a
   ln conftest.a conftest.b 2>&5 || hard_links=no
   ln conftest.a conftest.b 2>/dev/null && hard_links=no
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $hard_links" >&5
-printf "%s\n" "$hard_links" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $hard_links" >&5
+printf '%s\n' "$hard_links" >&6; }
   if test no = "$hard_links"; then
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: '$CC' does not support '-c -o', so 'make -j' may be unsafe" >&5
-printf "%s\n" "$as_me: WARNING: '$CC' does not support '-c -o', so 'make -j' may be unsafe" >&2;}
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: '$CC' does not support '-c -o', so 'make -j' may be unsafe" >&5
+printf '%s\n' "$as_me: WARNING: '$CC' does not support '-c -o', so 'make -j' may be unsafe" >&2;}
     need_locks=warn
   fi
 else
@@ -16606,7 +16758,7 @@ fi
 
 
 
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5
 printf %s "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; }
 
   export_symbols_cmds_CXX='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
@@ -16646,8 +16798,8 @@ printf %s "checking whether the $compiler linker ($LD) supports shared libraries
     ;;
   esac
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs_CXX" >&5
-printf "%s\n" "$ld_shlibs_CXX" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs_CXX" >&5
+printf '%s\n' "$ld_shlibs_CXX" >&6; }
 test no = "$ld_shlibs_CXX" && can_build_shared=no
 
 with_gnu_ld_CXX=$with_gnu_ld
@@ -16674,19 +16826,19 @@ x|xyes)
       # Test whether the compiler implicitly links with -lc since on some
       # systems, -lgcc has to come before -lc. If gcc already passes -lc
       # to ld, don't add -lc before -lgcc.
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether -lc should be explicitly linked in" >&5
+      { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking whether -lc should be explicitly linked in" >&5
 printf %s "checking whether -lc should be explicitly linked in... " >&6; }
 if test ${lt_cv_archive_cmds_need_lc_CXX+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  $RM conftest*
+else case e in #(
+  e) $RM conftest*
 	echo "$lt_simple_compile_test_code" > conftest.$ac_ext
 
 	if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } 2>conftest.err; then
 	  soname=conftest
 	  lib=conftest
@@ -16704,7 +16856,7 @@ else $as_nop
 	  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$archive_cmds_CXX 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1\""; } >&5
   (eval $archive_cmds_CXX 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1) 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }
 	  then
 	    lt_cv_archive_cmds_need_lc_CXX=no
@@ -16716,10 +16868,11 @@ else $as_nop
 	  cat conftest.err 1>&5
 	fi
 	$RM conftest*
-
+	 ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_archive_cmds_need_lc_CXX" >&5
-printf "%s\n" "$lt_cv_archive_cmds_need_lc_CXX" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $lt_cv_archive_cmds_need_lc_CXX" >&5
+printf '%s\n' "$lt_cv_archive_cmds_need_lc_CXX" >&6; }
       archive_cmds_need_lc_CXX=$lt_cv_archive_cmds_need_lc_CXX
       ;;
     esac
@@ -16788,7 +16941,7 @@ esac
 
 
 
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking dynamic linker characteristics" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking dynamic linker characteristics" >&5
 printf %s "checking dynamic linker characteristics... " >&6; }
 
 library_names_spec=
@@ -17282,8 +17435,8 @@ linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
   if test ${lt_cv_shlibpath_overrides_runpath+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  lt_cv_shlibpath_overrides_runpath=no
+else case e in #(
+  e) lt_cv_shlibpath_overrides_runpath=no
     save_LDFLAGS=$LDFLAGS
     save_libdir=$libdir
     eval "libdir=/foo; wl=\"$lt_prog_compiler_wl_CXX\"; \
@@ -17310,7 +17463,8 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
     LDFLAGS=$save_LDFLAGS
     libdir=$save_libdir
-
+     ;;
+esac
 fi
 
   shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath
@@ -17543,8 +17697,8 @@ uts4*)
   dynamic_linker=no
   ;;
 esac
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $dynamic_linker" >&5
-printf "%s\n" "$dynamic_linker" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $dynamic_linker" >&5
+printf '%s\n' "$dynamic_linker" >&6; }
 test no = "$dynamic_linker" && can_build_shared=no
 
 variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
@@ -17608,7 +17762,7 @@ configure_time_lt_sys_library_path=$LT_SYS_LIBRARY_PATH
 
 
 
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking how to hardcode library paths into programs" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking how to hardcode library paths into programs" >&5
 printf %s "checking how to hardcode library paths into programs... " >&6; }
 hardcode_action_CXX=
 if test -n "$hardcode_libdir_flag_spec_CXX" ||
@@ -17633,8 +17787,8 @@ else
   # directories.
   hardcode_action_CXX=unsupported
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $hardcode_action_CXX" >&5
-printf "%s\n" "$hardcode_action_CXX" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $hardcode_action_CXX" >&5
+printf '%s\n' "$hardcode_action_CXX" >&6; }
 
 if test relink = "$hardcode_action_CXX" ||
    test yes = "$inherit_rpath_CXX"; then
@@ -17673,13 +17827,13 @@ ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
 printf %s "checking for egrep... " >&6; }
 if test ${ac_cv_path_EGREP+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
+else case e in #(
+  e) if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
    then ac_cv_path_EGREP="$GREP -E"
    else
      if test -z "$EGREP"; then
@@ -17701,9 +17855,10 @@ do
       as_fn_executable_p "$ac_path_EGREP" || continue
 # Check for GNU ac_path_EGREP and select it if it is found.
   # Check for GNU $ac_path_EGREP
-case `"$ac_path_EGREP" --version 2>&1` in
+case `"$ac_path_EGREP" --version 2>&1` in #(
 *GNU*)
   ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
+#(
 *)
   ac_count=0
   printf %s 0123456789 >"conftest.in"
@@ -17712,7 +17867,7 @@ case `"$ac_path_EGREP" --version 2>&1` in
     cat "conftest.in" "conftest.in" >"conftest.tmp"
     mv "conftest.tmp" "conftest.in"
     cp "conftest.in" "conftest.nl"
-    printf "%s\n" 'EGREP' >> "conftest.nl"
+    printf '%s\n' 'EGREP' >> "conftest.nl"
     "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
     diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
     as_fn_arith $ac_count + 1 && ac_count=$as_val
@@ -17739,20 +17894,23 @@ else
   ac_cv_path_EGREP=$EGREP
 fi
 
-   fi
+   fi ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
-printf "%s\n" "$ac_cv_path_EGREP" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
+printf '%s\n' "$ac_cv_path_EGREP" >&6; }
  EGREP="$ac_cv_path_EGREP"
 
+         EGREP_TRADITIONAL=$EGREP
+ ac_cv_path_EGREP_TRADITIONAL=$EGREP
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for fgrep" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for fgrep" >&5
 printf %s "checking for fgrep... " >&6; }
 if test ${ac_cv_path_FGREP+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if echo 'ab*c' | $GREP -F 'ab*c' >/dev/null 2>&1
+else case e in #(
+  e) if echo 'ab*c' | $GREP -F 'ab*c' >/dev/null 2>&1
    then ac_cv_path_FGREP="$GREP -F"
    else
      if test -z "$FGREP"; then
@@ -17774,9 +17932,10 @@ do
       as_fn_executable_p "$ac_path_FGREP" || continue
 # Check for GNU ac_path_FGREP and select it if it is found.
   # Check for GNU $ac_path_FGREP
-case `"$ac_path_FGREP" --version 2>&1` in
+case `"$ac_path_FGREP" --version 2>&1` in #(
 *GNU*)
   ac_cv_path_FGREP="$ac_path_FGREP" ac_path_FGREP_found=:;;
+#(
 *)
   ac_count=0
   printf %s 0123456789 >"conftest.in"
@@ -17785,7 +17944,7 @@ case `"$ac_path_FGREP" --version 2>&1` in
     cat "conftest.in" "conftest.in" >"conftest.tmp"
     mv "conftest.tmp" "conftest.in"
     cp "conftest.in" "conftest.nl"
-    printf "%s\n" 'FGREP' >> "conftest.nl"
+    printf '%s\n' 'FGREP' >> "conftest.nl"
     "$ac_path_FGREP" FGREP < "conftest.nl" >"conftest.out" 2>/dev/null || break
     diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
     as_fn_arith $ac_count + 1 && ac_count=$as_val
@@ -17812,10 +17971,11 @@ else
   ac_cv_path_FGREP=$FGREP
 fi
 
-   fi
+   fi ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_FGREP" >&5
-printf "%s\n" "$ac_cv_path_FGREP" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_FGREP" >&5
+printf '%s\n' "$ac_cv_path_FGREP" >&6; }
  FGREP="$ac_cv_path_FGREP"
 
 
@@ -17834,14 +17994,14 @@ printf "%s\n" "$ac_cv_path_FGREP" >&6; }
 # OS/2's system install, which has a completely different semantic
 # ./install, which can be erroneously created by make from ./install.sh.
 # Reject install programs that cannot install multiple files.
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5
 printf %s "checking for a BSD-compatible install... " >&6; }
 if test -z "$INSTALL"; then
 if test ${ac_cv_path_install+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+else case e in #(
+  e) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
@@ -17857,8 +18017,8 @@ case $as_dir in #((
   ?:[\\/]os2[\\/]install[\\/]* | ?:[\\/]OS2[\\/]INSTALL[\\/]* | \
   /usr/ucb/* ) ;;
   *)
-    # OSF1 and SCO ODT 3.0 have their own names for install.
-    # Don't use installbsd from OSF since it installs stuff as root
+    # OSF/1 and SCO ODT 3.0 have their own names for install.
+    # Don't use installbsd from OSF/1 since it installs stuff as root
     # by default.
     for ac_prog in ginstall scoinst install; do
       for ac_exec_ext in '' $ac_executable_extensions; do
@@ -17895,7 +18055,8 @@ esac
 IFS=$as_save_IFS
 
 rm -rf conftest.one conftest.two conftest.dir
-
+ ;;
+esac
 fi
   if test ${ac_cv_path_install+y}; then
     INSTALL=$ac_cv_path_install
@@ -17907,8 +18068,8 @@ fi
     INSTALL=$ac_install_sh
   fi
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $INSTALL" >&5
-printf "%s\n" "$INSTALL" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $INSTALL" >&5
+printf '%s\n' "$INSTALL" >&6; }
 
 # Use test -z because SunOS4 sh mishandles braces in ${var-val}.
 # It thinks the first close brace ends the variable substitution.
@@ -17918,18 +18079,18 @@ test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
 
 test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} sets \$(MAKE)" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} sets \$(MAKE)" >&5
 printf %s "checking whether ${MAKE-make} sets \$(MAKE)... " >&6; }
 set x ${MAKE-make}
-ac_make=`printf "%s\n" "$2" | sed 's/+/p/g; s/[^a-zA-Z0-9_]/_/g'`
+ac_make=`printf '%s\n' "$2" | sed 's/+/p/g; s/[^a-zA-Z0-9_]/_/g'`
 if eval test \${ac_cv_prog_make_${ac_make}_set+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat >conftest.make <<\_ACEOF
+else case e in #(
+  e) cat >conftest.make <<\_ACEOF
 SHELL = /bin/sh
 all:
-	@echo '@@@%%%=$(MAKE)=@@@%%%'
+	@printf '%s\n' '@@@%%%=$(MAKE)=@@@%%%'
 _ACEOF
 # GNU make sometimes prints "make[1]: Entering ...", which would confuse us.
 case `${MAKE-make} -f conftest.make 2>/dev/null` in
@@ -17938,15 +18099,16 @@ case `${MAKE-make} -f conftest.make 2>/dev/null` in
   *)
     eval ac_cv_prog_make_${ac_make}_set=no;;
 esac
-rm -f conftest.make
+rm -f conftest.make ;;
+esac
 fi
 if eval test \$ac_cv_prog_make_${ac_make}_set = yes; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf '%s\n' "yes" >&6; }
   SET_MAKE=
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
   SET_MAKE="MAKE=${MAKE-make}"
 fi
 
@@ -17961,13 +18123,13 @@ if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
 	if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
 set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_PKG_CONFIG+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $PKG_CONFIG in
+else case e in #(
+  e) case $PKG_CONFIG in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_PKG_CONFIG="$PKG_CONFIG" # Let the user override the test with a path.
   ;;
@@ -17984,7 +18146,7 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_path_PKG_CONFIG="$as_dir$ac_word$ac_exec_ext"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -17992,15 +18154,16 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 PKG_CONFIG=$ac_cv_path_PKG_CONFIG
 if test -n "$PKG_CONFIG"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKG_CONFIG" >&5
-printf "%s\n" "$PKG_CONFIG" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $PKG_CONFIG" >&5
+printf '%s\n' "$PKG_CONFIG" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -18009,13 +18172,13 @@ if test -z "$ac_cv_path_PKG_CONFIG"; then
   ac_pt_PKG_CONFIG=$PKG_CONFIG
   # Extract the first word of "pkg-config", so it can be a program name with args.
 set dummy pkg-config; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_ac_pt_PKG_CONFIG+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $ac_pt_PKG_CONFIG in
+else case e in #(
+  e) case $ac_pt_PKG_CONFIG in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_ac_pt_PKG_CONFIG="$ac_pt_PKG_CONFIG" # Let the user override the test with a path.
   ;;
@@ -18032,7 +18195,7 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_path_ac_pt_PKG_CONFIG="$as_dir$ac_word$ac_exec_ext"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -18040,15 +18203,16 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 ac_pt_PKG_CONFIG=$ac_cv_path_ac_pt_PKG_CONFIG
 if test -n "$ac_pt_PKG_CONFIG"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKG_CONFIG" >&5
-printf "%s\n" "$ac_pt_PKG_CONFIG" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKG_CONFIG" >&5
+printf '%s\n' "$ac_pt_PKG_CONFIG" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
   if test "x$ac_pt_PKG_CONFIG" = x; then
@@ -18056,8 +18220,8 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf '%s\n' "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     PKG_CONFIG=$ac_pt_PKG_CONFIG
@@ -18069,14 +18233,14 @@ fi
 fi
 if test -n "$PKG_CONFIG"; then
 	_pkg_min_version=0.9.0
-	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking pkg-config is at least version $_pkg_min_version" >&5
+	{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking pkg-config is at least version $_pkg_min_version" >&5
 printf %s "checking pkg-config is at least version $_pkg_min_version... " >&6; }
 	if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
-		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+		{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf '%s\n' "yes" >&6; }
 	else
-		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+		{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 		PKG_CONFIG=""
 	fi
 fi
@@ -18089,13 +18253,13 @@ for ac_prog in gsort sort
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_SORT+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$SORT"; then
+else case e in #(
+  e) if test -n "$SORT"; then
   ac_cv_prog_SORT="$SORT" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -18110,22 +18274,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_SORT="$ac_prog"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 SORT=$ac_cv_prog_SORT
 if test -n "$SORT"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $SORT" >&5
-printf "%s\n" "$SORT" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $SORT" >&5
+printf '%s\n' "$SORT" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -18135,8 +18300,8 @@ test -n "$SORT" || SORT="false"
 
 if ! "$SORT" -V </dev/null >/dev/null
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: sort(1) that supports the -V option is required to find dynamic libraries" >&5
-printf "%s\n" "$as_me: WARNING: sort(1) that supports the -V option is required to find dynamic libraries" >&2;}
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: sort(1) that supports the -V option is required to find dynamic libraries" >&5
+printf '%s\n' "$as_me: WARNING: sort(1) that supports the -V option is required to find dynamic libraries" >&2;}
 fi
 
 # Check whether --enable-largefile was given.
@@ -18144,31 +18309,34 @@ if test ${enable_largefile+y}
 then :
   enableval=$enable_largefile;
 fi
-
-if test "$enable_largefile" != no; then
-
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for special C compiler options needed for large files" >&5
-printf %s "checking for special C compiler options needed for large files... " >&6; }
-if test ${ac_cv_sys_largefile_CC+y}
+if test "$enable_largefile,$enable_year2038" != no,no
+then :
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $CC option to support large files" >&5
+printf %s "checking for $CC option to support large files... " >&6; }
+if test ${ac_cv_sys_largefile_opts+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_sys_largefile_CC=no
-     if test "$GCC" != yes; then
-       ac_save_CC=$CC
-       while :; do
-	 # IRIX 6.2 and later do not support large files by default,
-	 # so use the C compiler's -n32 option if that helps.
-	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) ac_save_CPPFLAGS=$CPPFLAGS
+  ac_opt_found=no
+  for ac_opt in "none needed" "-D_FILE_OFFSET_BITS=64" "-D_LARGE_FILES=1"; do
+    if test x"$ac_opt" != x"none needed"
+then :
+  CPPFLAGS="$ac_save_CPPFLAGS $ac_opt"
+fi
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <sys/types.h>
- /* Check that off_t can represent 2**63 - 1 correctly.
-    We can't simply define LARGE_OFF_T to be 9223372036854775807,
+#ifndef FTYPE
+# define FTYPE off_t
+#endif
+ /* Check that FTYPE can represent 2**63 - 1 correctly.
+    We can't simply define LARGE_FTYPE to be 9223372036854775807,
     since some C++ compilers masquerading as C compilers
     incorrectly reject 9223372036854775807.  */
-#define LARGE_OFF_T (((off_t) 1 << 31 << 31) - 1 + ((off_t) 1 << 31 << 31))
-  int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
-		       && LARGE_OFF_T % 2147483647 == 1)
+#define LARGE_FTYPE (((FTYPE) 1 << 31 << 31) - 1 + ((FTYPE) 1 << 31 << 31))
+  int FTYPE_is_large[(LARGE_FTYPE % 2147483629 == 721
+		       && LARGE_FTYPE % 2147483647 == 1)
 		      ? 1 : -1];
 int
 main (void)
@@ -18178,47 +18346,86 @@ main (void)
   return 0;
 }
 _ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  if test x"$ac_opt" = x"none needed"
+then :
+  # GNU/Linux s390x and alpha need _FILE_OFFSET_BITS=64 for wide ino_t.
+	 CPPFLAGS="$CPPFLAGS -DFTYPE=ino_t"
 	 if ac_fn_c_try_compile "$LINENO"
 then :
-  break
+
+else case e in #(
+  e) CPPFLAGS="$CPPFLAGS -D_FILE_OFFSET_BITS=64"
+	    if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_opt='-D_FILE_OFFSET_BITS=64'
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam
-	 CC="$CC -n32"
-	 if ac_fn_c_try_compile "$LINENO"
-then :
-  ac_cv_sys_largefile_CC=' -n32'; break
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam
-	 break
-       done
-       CC=$ac_save_CC
-       rm -f conftest.$ac_ext
-    fi
+      ac_cv_sys_largefile_opts=$ac_opt
+      ac_opt_found=yes
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_largefile_CC" >&5
-printf "%s\n" "$ac_cv_sys_largefile_CC" >&6; }
-  if test "$ac_cv_sys_largefile_CC" != no; then
-    CC=$CC$ac_cv_sys_largefile_CC
-  fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+    test $ac_opt_found = no || break
+  done
+  CPPFLAGS=$ac_save_CPPFLAGS
 
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for _FILE_OFFSET_BITS value needed for large files" >&5
-printf %s "checking for _FILE_OFFSET_BITS value needed for large files... " >&6; }
-if test ${ac_cv_sys_file_offset_bits+y}
+  test $ac_opt_found = yes || ac_cv_sys_largefile_opts="support not detected" ;;
+esac
+fi
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_largefile_opts" >&5
+printf '%s\n' "$ac_cv_sys_largefile_opts" >&6; }
+
+ac_have_largefile=yes
+case $ac_cv_sys_largefile_opts in #(
+  "none needed") :
+     ;; #(
+  "supported through gnulib") :
+     ;; #(
+  "support not detected") :
+    ac_have_largefile=no ;; #(
+  "-D_FILE_OFFSET_BITS=64") :
+
+printf '%s\n' "#define _FILE_OFFSET_BITS 64" >>confdefs.h
+ ;; #(
+  "-D_LARGE_FILES=1") :
+
+printf '%s\n' "#define _LARGE_FILES 1" >>confdefs.h
+ ;; #(
+  *) :
+    as_fn_error $? "internal error: bad value for \$ac_cv_sys_largefile_opts" "$LINENO" 5 ;;
+esac
+
+if test "$enable_year2038" != no
+then :
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $CC option to support timestamps after 2038" >&5
+printf %s "checking for $CC option to support timestamps after 2038... " >&6; }
+if test ${ac_cv_sys_year2038_opts+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  while :; do
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) ac_save_CPPFLAGS="$CPPFLAGS"
+  ac_opt_found=no
+  for ac_opt in "none needed" "-D_TIME_BITS=64" "-D__MINGW_USE_VC2005_COMPAT" "-U_USE_32_BIT_TIME_T -D__MINGW_USE_VC2005_COMPAT"; do
+    if test x"$ac_opt" != x"none needed"
+then :
+  CPPFLAGS="$ac_save_CPPFLAGS $ac_opt"
+fi
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-#include <sys/types.h>
- /* Check that off_t can represent 2**63 - 1 correctly.
-    We can't simply define LARGE_OFF_T to be 9223372036854775807,
-    since some C++ compilers masquerading as C compilers
-    incorrectly reject 9223372036854775807.  */
-#define LARGE_OFF_T (((off_t) 1 << 31 << 31) - 1 + ((off_t) 1 << 31 << 31))
-  int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
-		       && LARGE_OFF_T % 2147483647 == 1)
-		      ? 1 : -1];
+
+  #include <time.h>
+  /* Check that time_t can represent 2**32 - 1 correctly.  */
+  #define LARGE_TIME_T \\
+    ((time_t) (((time_t) 1 << 30) - 1 + 3 * ((time_t) 1 << 30)))
+  int verify_time_t_range[(LARGE_TIME_T / 65537 == 65535
+                           && LARGE_TIME_T % 65537 == 0)
+                          ? 1 : -1];
+
 int
 main (void)
 {
@@ -18229,120 +18436,47 @@ main (void)
 _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
-  ac_cv_sys_file_offset_bits=no; break
+  ac_cv_sys_year2038_opts="$ac_opt"
+      ac_opt_found=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#define _FILE_OFFSET_BITS 64
-#include <sys/types.h>
- /* Check that off_t can represent 2**63 - 1 correctly.
-    We can't simply define LARGE_OFF_T to be 9223372036854775807,
-    since some C++ compilers masquerading as C compilers
-    incorrectly reject 9223372036854775807.  */
-#define LARGE_OFF_T (((off_t) 1 << 31 << 31) - 1 + ((off_t) 1 << 31 << 31))
-  int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
-		       && LARGE_OFF_T % 2147483647 == 1)
-		      ? 1 : -1];
-int
-main (void)
-{
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"
-then :
-  ac_cv_sys_file_offset_bits=64; break
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-  ac_cv_sys_file_offset_bits=unknown
-  break
-done
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_file_offset_bits" >&5
-printf "%s\n" "$ac_cv_sys_file_offset_bits" >&6; }
-case $ac_cv_sys_file_offset_bits in #(
-  no | unknown) ;;
-  *)
-printf "%s\n" "#define _FILE_OFFSET_BITS $ac_cv_sys_file_offset_bits" >>confdefs.h
-;;
+    test $ac_opt_found = no || break
+  done
+  CPPFLAGS="$ac_save_CPPFLAGS"
+  test $ac_opt_found = yes || ac_cv_sys_year2038_opts="support not detected" ;;
 esac
-rm -rf conftest*
-  if test $ac_cv_sys_file_offset_bits = unknown; then
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for _LARGE_FILES value needed for large files" >&5
-printf %s "checking for _LARGE_FILES value needed for large files... " >&6; }
-if test ${ac_cv_sys_large_files+y}
-then :
-  printf %s "(cached) " >&6
-else $as_nop
-  while :; do
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <sys/types.h>
- /* Check that off_t can represent 2**63 - 1 correctly.
-    We can't simply define LARGE_OFF_T to be 9223372036854775807,
-    since some C++ compilers masquerading as C compilers
-    incorrectly reject 9223372036854775807.  */
-#define LARGE_OFF_T (((off_t) 1 << 31 << 31) - 1 + ((off_t) 1 << 31 << 31))
-  int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
-		       && LARGE_OFF_T % 2147483647 == 1)
-		      ? 1 : -1];
-int
-main (void)
-{
+fi
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_year2038_opts" >&5
+printf '%s\n' "$ac_cv_sys_year2038_opts" >&6; }
 
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"
-then :
-  ac_cv_sys_large_files=no; break
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#define _LARGE_FILES 1
-#include <sys/types.h>
- /* Check that off_t can represent 2**63 - 1 correctly.
-    We can't simply define LARGE_OFF_T to be 9223372036854775807,
-    since some C++ compilers masquerading as C compilers
-    incorrectly reject 9223372036854775807.  */
-#define LARGE_OFF_T (((off_t) 1 << 31 << 31) - 1 + ((off_t) 1 << 31 << 31))
-  int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
-		       && LARGE_OFF_T % 2147483647 == 1)
-		      ? 1 : -1];
-int
-main (void)
-{
+ac_have_year2038=yes
+case $ac_cv_sys_year2038_opts in #(
+  "none needed") :
+     ;; #(
+  "support not detected") :
+    ac_have_year2038=no ;; #(
+  "-D_TIME_BITS=64") :
 
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"
-then :
-  ac_cv_sys_large_files=1; break
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-  ac_cv_sys_large_files=unknown
-  break
-done
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_large_files" >&5
-printf "%s\n" "$ac_cv_sys_large_files" >&6; }
-case $ac_cv_sys_large_files in #(
-  no | unknown) ;;
-  *)
-printf "%s\n" "#define _LARGE_FILES $ac_cv_sys_large_files" >>confdefs.h
-;;
+printf '%s\n' "#define _TIME_BITS 64" >>confdefs.h
+ ;; #(
+  "-D__MINGW_USE_VC2005_COMPAT") :
+
+printf '%s\n' "#define __MINGW_USE_VC2005_COMPAT 1" >>confdefs.h
+ ;; #(
+  "-U_USE_32_BIT_TIME_T"*) :
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf '%s\n' "$as_me: error: in '$ac_pwd':" >&2;}
+as_fn_error $? "the 'time_t' type is currently forced to be 32-bit. It
+will stop working after mid-January 2038. Remove
+_USE_32BIT_TIME_T from the compiler flags.
+See 'config.log' for more details" "$LINENO" 5; } ;; #(
+  *) :
+    as_fn_error $? "internal error: bad value for \$ac_cv_sys_year2038_opts" "$LINENO" 5 ;;
 esac
-rm -rf conftest*
-  fi
+
 fi
 
+fi
 
 case "$host" in
     *-*-mingw*)
@@ -18391,7 +18525,7 @@ case "$host" in
         # We build SDL on cygwin without the UNIX emulation layer
         save_CFLAGS="$CFLAGS"
         have_no_cygwin=no
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GCC -mno-cygwin option" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for GCC -mno-cygwin option" >&5
 printf %s "checking for GCC -mno-cygwin option... " >&6; }
         CFLAGS="$save_CFLAGS -mno-cygwin"
 
@@ -18411,8 +18545,8 @@ then :
   have_no_cygwin=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_no_cygwin" >&5
-printf "%s\n" "$have_no_cygwin" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_no_cygwin" >&5
+printf '%s\n' "$have_no_cygwin" >&6; }
         CFLAGS="$save_CFLAGS"
 
         if test x$have_no_cygwin = xyes; then
@@ -18476,13 +18610,13 @@ find_lib()
     done
 }
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for an ANSI C-conforming const" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for an ANSI C-conforming const" >&5
 printf %s "checking for an ANSI C-conforming const... " >&6; }
 if test ${ac_cv_c_const+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -18517,15 +18651,12 @@ main (void)
     *t++ = 0;
     if (s) return 0;
   }
-  { /* Someone thinks the Sun supposedly-ANSI compiler will reject this.  */
+  { /* Derived from code rejected by Sun C 1.0 and similar vintage.  */
     int x[] = {25, 17};
-    const int *foo = &x[0];
+    typedef int const *iptr;
+    iptr foo = &x[0];
     ++foo;
-  }
-  { /* Sun SC1.0 ANSI compiler rejects this -- but not the above. */
-    typedef const int *iptr;
-    iptr p = 0;
-    ++p;
+    if (!*foo) return 0;
   }
   { /* IBM XL C 1.02.0.0 rejects this sort of thing, saying
        "k.c", line 2.27: 1506-025 (S) Operand must be a modifiable lvalue. */
@@ -18546,26 +18677,28 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_c_const=yes
-else $as_nop
-  ac_cv_c_const=no
+else case e in #(
+  e) ac_cv_c_const=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_const" >&5
-printf "%s\n" "$ac_cv_c_const" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_const" >&5
+printf '%s\n' "$ac_cv_c_const" >&6; }
 if test $ac_cv_c_const = no; then
 
-printf "%s\n" "#define const /**/" >>confdefs.h
+printf '%s\n' "#define const /**/" >>confdefs.h
 
 fi
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for inline" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for inline" >&5
 printf %s "checking for inline... " >&6; }
 if test ${ac_cv_c_inline+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_c_inline=no
+else case e in #(
+  e) ac_cv_c_inline=no
 for ac_kw in inline __inline__ __inline; do
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -18583,10 +18716,11 @@ fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
   test "$ac_cv_c_inline" != no && break
 done
-
+ ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_inline" >&5
-printf "%s\n" "$ac_cv_c_inline" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_inline" >&5
+printf '%s\n' "$ac_cv_c_inline" >&6; }
 
 case $ac_cv_c_inline in
   inline | yes) ;;
@@ -18603,13 +18737,13 @@ _ACEOF
     ;;
 esac
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for working volatile" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for working volatile" >&5
 printf %s "checking for working volatile... " >&6; }
 if test ${ac_cv_c_volatile+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -18626,16 +18760,18 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_c_volatile=yes
-else $as_nop
-  ac_cv_c_volatile=no
+else case e in #(
+  e) ac_cv_c_volatile=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_volatile" >&5
-printf "%s\n" "$ac_cv_c_volatile" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_volatile" >&5
+printf '%s\n' "$ac_cv_c_volatile" >&6; }
 if test $ac_cv_c_volatile = no; then
 
-printf "%s\n" "#define volatile /**/" >>confdefs.h
+printf '%s\n' "#define volatile /**/" >>confdefs.h
 
 fi
 
@@ -18644,8 +18780,9 @@ fi
 if test ${enable_assertions+y}
 then :
   enableval=$enable_assertions;
-else $as_nop
-  enable_assertions=auto
+else case e in #(
+  e) enable_assertions=auto ;;
+esac
 fi
 
 case "$enable_assertions" in
@@ -18653,22 +18790,22 @@ case "$enable_assertions" in
         ;;
     disabled)
 
-printf "%s\n" "#define SDL_DEFAULT_ASSERT_LEVEL 0" >>confdefs.h
+printf '%s\n' "#define SDL_DEFAULT_ASSERT_LEVEL 0" >>confdefs.h
 
         ;;
     release)
 
-printf "%s\n" "#define SDL_DEFAULT_ASSERT_LEVEL 1" >>confdefs.h
+printf '%s\n' "#define SDL_DEFAULT_ASSERT_LEVEL 1" >>confdefs.h
 
         ;;
     enabled)
 
-printf "%s\n" "#define SDL_DEFAULT_ASSERT_LEVEL 2" >>confdefs.h
+printf '%s\n' "#define SDL_DEFAULT_ASSERT_LEVEL 2" >>confdefs.h
 
         ;;
     paranoid)
 
-printf "%s\n" "#define SDL_DEFAULT_ASSERT_LEVEL 3" >>confdefs.h
+printf '%s\n' "#define SDL_DEFAULT_ASSERT_LEVEL 3" >>confdefs.h
 
         ;;
     *)
@@ -18682,13 +18819,14 @@ EXTRA_CFLAGS="$EXTRA_CFLAGS -DSDL_BUILD_MAJOR_VERSION=$SDL_MAJOR_VERSION -DSDL_B
 if test ${enable_dependency_tracking+y}
 then :
   enableval=$enable_dependency_tracking;
-else $as_nop
-  enable_dependency_tracking=yes
+else case e in #(
+  e) enable_dependency_tracking=yes ;;
+esac
 fi
 
 if test x$enable_dependency_tracking = xyes; then
     have_gcc_mmd_mt=no
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GCC -MMD -MT option" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for GCC -MMD -MT option" >&5
 printf %s "checking for GCC -MMD -MT option... " >&6; }
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -18710,15 +18848,15 @@ then :
   have_gcc_mmd_mt=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_gcc_mmd_mt" >&5
-printf "%s\n" "$have_gcc_mmd_mt" >&6; }
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_gcc_mmd_mt" >&5
+printf '%s\n' "$have_gcc_mmd_mt" >&6; }
 
     if test x$have_gcc_mmd_mt = xyes; then
         DEPENDENCY_TRACKING_OPTIONS="-MMD -MT \$@"
     fi
 fi
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for linker option --no-undefined" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for linker option --no-undefined" >&5
 printf %s "checking for linker option --no-undefined... " >&6; }
 have_no_undefined=no
 case "$host" in
@@ -18750,10 +18888,10 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam \
         LDFLAGS="$save_LDFLAGS"
         ;;
 esac
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_no_undefined" >&5
-printf "%s\n" "$have_no_undefined" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_no_undefined" >&5
+printf '%s\n' "$have_no_undefined" >&6; }
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for linker option --dynamicbase" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for linker option --dynamicbase" >&5
 printf %s "checking for linker option --dynamicbase... " >&6; }
 have_dynamicbase=no
 case "$host" in
@@ -18783,10 +18921,10 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam \
         LDFLAGS="$save_LDFLAGS"
         ;;
 esac
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_dynamicbase" >&5
-printf "%s\n" "$have_dynamicbase" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_dynamicbase" >&5
+printf '%s\n' "$have_dynamicbase" >&6; }
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for linker option --nxcompat" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for linker option --nxcompat" >&5
 printf %s "checking for linker option --nxcompat... " >&6; }
 have_nxcompat=no
 case "$host" in
@@ -18816,10 +18954,10 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam \
         LDFLAGS="$save_LDFLAGS"
         ;;
 esac
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_nxcompat" >&5
-printf "%s\n" "$have_nxcompat" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_nxcompat" >&5
+printf '%s\n' "$have_nxcompat" >&6; }
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for linker option --high-entropy-va" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for linker option --high-entropy-va" >&5
 printf %s "checking for linker option --high-entropy-va... " >&6; }
 have_high_entropy_va=no
 case "$host" in
@@ -18849,15 +18987,16 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam \
         LDFLAGS="$save_LDFLAGS"
         ;;
 esac
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_high_entropy_va" >&5
-printf "%s\n" "$have_high_entropy_va" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_high_entropy_va" >&5
+printf '%s\n' "$have_high_entropy_va" >&6; }
 
 # Check whether --enable-libc was given.
 if test ${enable_libc+y}
 then :
   enableval=$enable_libc;
-else $as_nop
-  enable_libc=yes
+else case e in #(
+  e) enable_libc=yes ;;
+esac
 fi
 
 
@@ -18871,131 +19010,133 @@ esac
 if test ${enable_system_iconv+y}
 then :
   enableval=$enable_system_iconv;
-else $as_nop
-  enable_system_iconv=$enable_system_iconv_default
+else case e in #(
+  e) enable_system_iconv=$enable_system_iconv_default ;;
+esac
 fi
 
 # Check whether --enable-libiconv was given.
 if test ${enable_libiconv+y}
 then :
   enableval=$enable_libiconv;
-else $as_nop
-  enable_libiconv=no
+else case e in #(
+  e) enable_libiconv=no ;;
+esac
 fi
 
 
 if test x$enable_libc = xyes; then
 
-printf "%s\n" "#define HAVE_LIBC 1" >>confdefs.h
+printf '%s\n' "#define HAVE_LIBC 1" >>confdefs.h
 
 
 
     ac_fn_c_check_header_compile "$LINENO" "sys/types.h" "ac_cv_header_sys_types_h" "$ac_includes_default"
 if test "x$ac_cv_header_sys_types_h" = xyes
 then :
-  printf "%s\n" "#define HAVE_SYS_TYPES_H 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_SYS_TYPES_H 1" >>confdefs.h
 
 fi
 ac_fn_c_check_header_compile "$LINENO" "stdio.h" "ac_cv_header_stdio_h" "$ac_includes_default"
 if test "x$ac_cv_header_stdio_h" = xyes
 then :
-  printf "%s\n" "#define HAVE_STDIO_H 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_STDIO_H 1" >>confdefs.h
 
 fi
 ac_fn_c_check_header_compile "$LINENO" "stdlib.h" "ac_cv_header_stdlib_h" "$ac_includes_default"
 if test "x$ac_cv_header_stdlib_h" = xyes
 then :
-  printf "%s\n" "#define HAVE_STDLIB_H 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_STDLIB_H 1" >>confdefs.h
 
 fi
 ac_fn_c_check_header_compile "$LINENO" "stddef.h" "ac_cv_header_stddef_h" "$ac_includes_default"
 if test "x$ac_cv_header_stddef_h" = xyes
 then :
-  printf "%s\n" "#define HAVE_STDDEF_H 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_STDDEF_H 1" >>confdefs.h
 
 fi
 ac_fn_c_check_header_compile "$LINENO" "stdarg.h" "ac_cv_header_stdarg_h" "$ac_includes_default"
 if test "x$ac_cv_header_stdarg_h" = xyes
 then :
-  printf "%s\n" "#define HAVE_STDARG_H 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_STDARG_H 1" >>confdefs.h
 
 fi
 ac_fn_c_check_header_compile "$LINENO" "malloc.h" "ac_cv_header_malloc_h" "$ac_includes_default"
 if test "x$ac_cv_header_malloc_h" = xyes
 then :
-  printf "%s\n" "#define HAVE_MALLOC_H 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_MALLOC_H 1" >>confdefs.h
 
 fi
 ac_fn_c_check_header_compile "$LINENO" "memory.h" "ac_cv_header_memory_h" "$ac_includes_default"
 if test "x$ac_cv_header_memory_h" = xyes
 then :
-  printf "%s\n" "#define HAVE_MEMORY_H 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_MEMORY_H 1" >>confdefs.h
 
 fi
 ac_fn_c_check_header_compile "$LINENO" "string.h" "ac_cv_header_string_h" "$ac_includes_default"
 if test "x$ac_cv_header_string_h" = xyes
 then :
-  printf "%s\n" "#define HAVE_STRING_H 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_STRING_H 1" >>confdefs.h
 
 fi
 ac_fn_c_check_header_compile "$LINENO" "strings.h" "ac_cv_header_strings_h" "$ac_includes_default"
 if test "x$ac_cv_header_strings_h" = xyes
 then :
-  printf "%s\n" "#define HAVE_STRINGS_H 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_STRINGS_H 1" >>confdefs.h
 
 fi
 ac_fn_c_check_header_compile "$LINENO" "wchar.h" "ac_cv_header_wchar_h" "$ac_includes_default"
 if test "x$ac_cv_header_wchar_h" = xyes
 then :
-  printf "%s\n" "#define HAVE_WCHAR_H 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_WCHAR_H 1" >>confdefs.h
 
 fi
 ac_fn_c_check_header_compile "$LINENO" "inttypes.h" "ac_cv_header_inttypes_h" "$ac_includes_default"
 if test "x$ac_cv_header_inttypes_h" = xyes
 then :
-  printf "%s\n" "#define HAVE_INTTYPES_H 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_INTTYPES_H 1" >>confdefs.h
 
 fi
 ac_fn_c_check_header_compile "$LINENO" "stdint.h" "ac_cv_header_stdint_h" "$ac_includes_default"
 if test "x$ac_cv_header_stdint_h" = xyes
 then :
-  printf "%s\n" "#define HAVE_STDINT_H 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_STDINT_H 1" >>confdefs.h
 
 fi
 ac_fn_c_check_header_compile "$LINENO" "limits.h" "ac_cv_header_limits_h" "$ac_includes_default"
 if test "x$ac_cv_header_limits_h" = xyes
 then :
-  printf "%s\n" "#define HAVE_LIMITS_H 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_LIMITS_H 1" >>confdefs.h
 
 fi
 ac_fn_c_check_header_compile "$LINENO" "ctype.h" "ac_cv_header_ctype_h" "$ac_includes_default"
 if test "x$ac_cv_header_ctype_h" = xyes
 then :
-  printf "%s\n" "#define HAVE_CTYPE_H 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_CTYPE_H 1" >>confdefs.h
 
 fi
 ac_fn_c_check_header_compile "$LINENO" "math.h" "ac_cv_header_math_h" "$ac_includes_default"
 if test "x$ac_cv_header_math_h" = xyes
 then :
-  printf "%s\n" "#define HAVE_MATH_H 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_MATH_H 1" >>confdefs.h
 
 fi
 ac_fn_c_check_header_compile "$LINENO" "float.h" "ac_cv_header_float_h" "$ac_includes_default"
 if test "x$ac_cv_header_float_h" = xyes
 then :
-  printf "%s\n" "#define HAVE_FLOAT_H 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_FLOAT_H 1" >>confdefs.h
 
 fi
 ac_fn_c_check_header_compile "$LINENO" "iconv.h" "ac_cv_header_iconv_h" "$ac_includes_default"
 if test "x$ac_cv_header_iconv_h" = xyes
 then :
-  printf "%s\n" "#define HAVE_ICONV_H 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_ICONV_H 1" >>confdefs.h
 
 fi
 ac_fn_c_check_header_compile "$LINENO" "signal.h" "ac_cv_header_signal_h" "$ac_includes_default"
 if test "x$ac_cv_header_signal_h" = xyes
 then :
-  printf "%s\n" "#define HAVE_SIGNAL_H 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_SIGNAL_H 1" >>confdefs.h
 
 fi
 
@@ -19004,10 +19145,11 @@ fi
 if test "x$ac_cv_type_size_t" = xyes
 then :
 
-else $as_nop
-
-printf "%s\n" "#define size_t unsigned int" >>confdefs.h
-
+else case e in #(
+  e)
+printf '%s\n' "#define size_t unsigned int" >>confdefs.h
+ ;;
+esac
 fi
 
 
@@ -19016,7 +19158,7 @@ ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
 printf %s "checking how to run the C preprocessor... " >&6; }
 # On Suns, sometimes $CPP names a directory.
 if test -n "$CPP" && test -d "$CPP"; then
@@ -19026,8 +19168,8 @@ if test -z "$CPP"; then
   if test ${ac_cv_prog_CPP+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-      # Double quotes because $CC needs to be expanded
+else case e in #(
+  e)     # Double quotes because $CC needs to be expanded
     for CPP in "$CC -E" "$CC -E -traditional-cpp" cpp /lib/cpp
     do
       ac_preproc_ok=false
@@ -19045,9 +19187,10 @@ _ACEOF
 if ac_fn_c_try_cpp "$LINENO"
 then :
 
-else $as_nop
-  # Broken: fails on valid input.
-continue
+else case e in #(
+  e) # Broken: fails on valid input.
+continue ;;
+esac
 fi
 rm -f conftest.err conftest.i conftest.$ac_ext
 
@@ -19061,15 +19204,16 @@ if ac_fn_c_try_cpp "$LINENO"
 then :
   # Broken: success on invalid input.
 continue
-else $as_nop
-  # Passes both tests.
+else case e in #(
+  e) # Passes both tests.
 ac_preproc_ok=:
-break
+break ;;
+esac
 fi
 rm -f conftest.err conftest.i conftest.$ac_ext
 
 done
-# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+# Because of 'break', _AC_PREPROC_IFELSE's cleaning code was skipped.
 rm -f conftest.i conftest.err conftest.$ac_ext
 if $ac_preproc_ok
 then :
@@ -19078,14 +19222,15 @@ fi
 
     done
     ac_cv_prog_CPP=$CPP
-
+   ;;
+esac
 fi
   CPP=$ac_cv_prog_CPP
 else
   ac_cv_prog_CPP=$CPP
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
-printf "%s\n" "$CPP" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
+printf '%s\n' "$CPP" >&6; }
 ac_preproc_ok=false
 for ac_c_preproc_warn_flag in '' yes
 do
@@ -19101,9 +19246,10 @@ _ACEOF
 if ac_fn_c_try_cpp "$LINENO"
 then :
 
-else $as_nop
-  # Broken: fails on valid input.
-continue
+else case e in #(
+  e) # Broken: fails on valid input.
+continue ;;
+esac
 fi
 rm -f conftest.err conftest.i conftest.$ac_ext
 
@@ -19117,24 +19263,26 @@ if ac_fn_c_try_cpp "$LINENO"
 then :
   # Broken: success on invalid input.
 continue
-else $as_nop
-  # Passes both tests.
+else case e in #(
+  e) # Passes both tests.
 ac_preproc_ok=:
-break
+break ;;
+esac
 fi
 rm -f conftest.err conftest.i conftest.$ac_ext
 
 done
-# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+# Because of 'break', _AC_PREPROC_IFELSE's cleaning code was skipped.
 rm -f conftest.i conftest.err conftest.$ac_ext
 if $ac_preproc_ok
 then :
 
-else $as_nop
-  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+else case e in #(
+  e) { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf '%s\n' "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; } ;;
+esac
 fi
 
 ac_ext=c
@@ -19143,12 +19291,146 @@ ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for M_PI in math.h" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for M_PI in math.h" >&5
 printf %s "checking for M_PI in math.h... " >&6; }
 if test ${ac_cv_define_M_PI+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
+else case e in #(
+  e)
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for egrep -e" >&5
+printf %s "checking for egrep -e... " >&6; }
+if test ${ac_cv_path_EGREP_TRADITIONAL+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) if test -z "$EGREP_TRADITIONAL"; then
+  ac_path_EGREP_TRADITIONAL_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_prog in grep ggrep
+   do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_EGREP_TRADITIONAL="$as_dir$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_EGREP_TRADITIONAL" || continue
+# Check for GNU ac_path_EGREP_TRADITIONAL and select it if it is found.
+  # Check for GNU $ac_path_EGREP_TRADITIONAL
+case `"$ac_path_EGREP_TRADITIONAL" --version 2>&1` in #(
+*GNU*)
+  ac_cv_path_EGREP_TRADITIONAL="$ac_path_EGREP_TRADITIONAL" ac_path_EGREP_TRADITIONAL_found=:;;
+#(
+*)
+  ac_count=0
+  printf %s 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    printf '%s\n' 'EGREP_TRADITIONAL' >> "conftest.nl"
+    "$ac_path_EGREP_TRADITIONAL" -E 'EGR(EP|AC)_TRADITIONAL$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_EGREP_TRADITIONAL_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_EGREP_TRADITIONAL="$ac_path_EGREP_TRADITIONAL"
+      ac_path_EGREP_TRADITIONAL_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_EGREP_TRADITIONAL_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_EGREP_TRADITIONAL"; then
+    :
+  fi
+else
+  ac_cv_path_EGREP_TRADITIONAL=$EGREP_TRADITIONAL
+fi
+
+    if test "$ac_cv_path_EGREP_TRADITIONAL"
+then :
+  ac_cv_path_EGREP_TRADITIONAL="$ac_cv_path_EGREP_TRADITIONAL -E"
+else case e in #(
+  e) if test -z "$EGREP_TRADITIONAL"; then
+  ac_path_EGREP_TRADITIONAL_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_prog in egrep
+   do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_EGREP_TRADITIONAL="$as_dir$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_EGREP_TRADITIONAL" || continue
+# Check for GNU ac_path_EGREP_TRADITIONAL and select it if it is found.
+  # Check for GNU $ac_path_EGREP_TRADITIONAL
+case `"$ac_path_EGREP_TRADITIONAL" --version 2>&1` in #(
+*GNU*)
+  ac_cv_path_EGREP_TRADITIONAL="$ac_path_EGREP_TRADITIONAL" ac_path_EGREP_TRADITIONAL_found=:;;
+#(
+*)
+  ac_count=0
+  printf %s 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    printf '%s\n' 'EGREP_TRADITIONAL' >> "conftest.nl"
+    "$ac_path_EGREP_TRADITIONAL" 'EGR(EP|AC)_TRADITIONAL$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_EGREP_TRADITIONAL_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_EGREP_TRADITIONAL="$ac_path_EGREP_TRADITIONAL"
+      ac_path_EGREP_TRADITIONAL_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_EGREP_TRADITIONAL_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_EGREP_TRADITIONAL"; then
+    as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_EGREP_TRADITIONAL=$EGREP_TRADITIONAL
+fi
+ ;;
+esac
+fi ;;
+esac
+fi
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP_TRADITIONAL" >&5
+printf '%s\n' "$ac_cv_path_EGREP_TRADITIONAL" >&6; }
+ EGREP_TRADITIONAL=$ac_cv_path_EGREP_TRADITIONAL
 
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -19160,34 +19442,36 @@ YES_IS_DEFINED
 
 _ACEOF
 if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "YES_IS_DEFINED" >/dev/null 2>&1
+  $EGREP_TRADITIONAL "YES_IS_DEFINED" >/dev/null 2>&1
 then :
   ac_cv_define_M_PI=yes
-else $as_nop
-  ac_cv_define_M_PI=no
+else case e in #(
+  e) ac_cv_define_M_PI=no ;;
+esac
 fi
 rm -rf conftest*
 
-
+   ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_define_M_PI" >&5
-printf "%s\n" "$ac_cv_define_M_PI" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_define_M_PI" >&5
+printf '%s\n' "$ac_cv_define_M_PI" >&6; }
   if test "$ac_cv_define_M_PI" = "yes" ; then
 
-printf "%s\n" "#define HAVE_M_PI /**/" >>confdefs.h
+printf '%s\n' "#define HAVE_M_PI /**/" >>confdefs.h
 
   fi
 
 
     # The Ultrix 4.2 mips builtin alloca declared by alloca.h only works
 # for constant arguments.  Useless!
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for working alloca.h" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for working alloca.h" >&5
 printf %s "checking for working alloca.h... " >&6; }
 if test ${ac_cv_working_alloca_h+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <alloca.h>
 int
@@ -19202,29 +19486,31 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_working_alloca_h=yes
-else $as_nop
-  ac_cv_working_alloca_h=no
+else case e in #(
+  e) ac_cv_working_alloca_h=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
-    conftest$ac_exeext conftest.$ac_ext
+    conftest$ac_exeext conftest.$ac_ext ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_working_alloca_h" >&5
-printf "%s\n" "$ac_cv_working_alloca_h" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_working_alloca_h" >&5
+printf '%s\n' "$ac_cv_working_alloca_h" >&6; }
 if test $ac_cv_working_alloca_h = yes; then
 
-printf "%s\n" "#define HAVE_ALLOCA_H 1" >>confdefs.h
+printf '%s\n' "#define HAVE_ALLOCA_H 1" >>confdefs.h
 
 fi
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for alloca" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for alloca" >&5
 printf %s "checking for alloca... " >&6; }
 if test ${ac_cv_func_alloca_works+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test $ac_cv_working_alloca_h = yes; then
-  ac_cv_func_alloca_works=yes
-else
+else case e in #(
+  e) ac_cv_func_alloca_works=$ac_cv_working_alloca_h
+if test "$ac_cv_func_alloca_works" != yes
+then :
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stdlib.h>
@@ -19255,21 +19541,18 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_func_alloca_works=yes
-else $as_nop
-  ac_cv_func_alloca_works=no
-
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
+fi ;;
+esac
 fi
-
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_alloca_works" >&5
-printf "%s\n" "$ac_cv_func_alloca_works" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_alloca_works" >&5
+printf '%s\n' "$ac_cv_func_alloca_works" >&6; }
 
 if test $ac_cv_func_alloca_works = yes; then
 
-printf "%s\n" "#define HAVE_ALLOCA 1" >>confdefs.h
+printf '%s\n' "#define HAVE_ALLOCA 1" >>confdefs.h
 
 else
   # The SVR3 libPW and SVR4 libucb both contain incompatible functions
@@ -19279,20 +19562,20 @@ else
 
 ALLOCA=\${LIBOBJDIR}alloca.$ac_objext
 
-printf "%s\n" "#define C_ALLOCA 1" >>confdefs.h
+printf '%s\n' "#define C_ALLOCA 1" >>confdefs.h
 
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking stack direction for C alloca" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking stack direction for C alloca" >&5
 printf %s "checking stack direction for C alloca... " >&6; }
 if test ${ac_cv_c_stack_direction+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "$cross_compiling" = yes
+else case e in #(
+  e) if test "$cross_compiling" = yes
 then :
   ac_cv_c_stack_direction=0
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $ac_includes_default
 int
@@ -19315,17 +19598,20 @@ _ACEOF
 if ac_fn_c_try_run "$LINENO"
 then :
   ac_cv_c_stack_direction=1
-else $as_nop
-  ac_cv_c_stack_direction=-1
+else case e in #(
+  e) ac_cv_c_stack_direction=-1 ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-
+ ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_stack_direction" >&5
-printf "%s\n" "$ac_cv_c_stack_direction" >&6; }
-printf "%s\n" "#define STACK_DIRECTION $ac_cv_c_stack_direction" >>confdefs.h
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_stack_direction" >&5
+printf '%s\n' "$ac_cv_c_stack_direction" >&6; }
+printf '%s\n' "#define STACK_DIRECTION $ac_cv_c_stack_direction" >>confdefs.h
 
 
 fi
@@ -19352,7 +19638,7 @@ if ac_fn_c_try_compile "$LINENO"
 then :
 
 
-printf "%s\n" "#define HAVE_MPROTECT 1" >>confdefs.h
+printf '%s\n' "#define HAVE_MPROTECT 1" >>confdefs.h
 
 
 fi
@@ -19362,482 +19648,488 @@ fi
     ac_fn_c_check_func "$LINENO" "malloc" "ac_cv_func_malloc"
 if test "x$ac_cv_func_malloc" = xyes
 then :
-  printf "%s\n" "#define HAVE_MALLOC 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_MALLOC 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "calloc" "ac_cv_func_calloc"
 if test "x$ac_cv_func_calloc" = xyes
 then :
-  printf "%s\n" "#define HAVE_CALLOC 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_CALLOC 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "realloc" "ac_cv_func_realloc"
 if test "x$ac_cv_func_realloc" = xyes
 then :
-  printf "%s\n" "#define HAVE_REALLOC 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_REALLOC 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "free" "ac_cv_func_free"
 if test "x$ac_cv_func_free" = xyes
 then :
-  printf "%s\n" "#define HAVE_FREE 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_FREE 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "getenv" "ac_cv_func_getenv"
 if test "x$ac_cv_func_getenv" = xyes
 then :
-  printf "%s\n" "#define HAVE_GETENV 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_GETENV 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "setenv" "ac_cv_func_setenv"
 if test "x$ac_cv_func_setenv" = xyes
 then :
-  printf "%s\n" "#define HAVE_SETENV 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_SETENV 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "putenv" "ac_cv_func_putenv"
 if test "x$ac_cv_func_putenv" = xyes
 then :
-  printf "%s\n" "#define HAVE_PUTENV 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_PUTENV 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "unsetenv" "ac_cv_func_unsetenv"
 if test "x$ac_cv_func_unsetenv" = xyes
 then :
-  printf "%s\n" "#define HAVE_UNSETENV 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_UNSETENV 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "bsearch" "ac_cv_func_bsearch"
 if test "x$ac_cv_func_bsearch" = xyes
 then :
-  printf "%s\n" "#define HAVE_BSEARCH 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_BSEARCH 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "qsort" "ac_cv_func_qsort"
 if test "x$ac_cv_func_qsort" = xyes
 then :
-  printf "%s\n" "#define HAVE_QSORT 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_QSORT 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "abs" "ac_cv_func_abs"
 if test "x$ac_cv_func_abs" = xyes
 then :
-  printf "%s\n" "#define HAVE_ABS 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_ABS 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "bcopy" "ac_cv_func_bcopy"
 if test "x$ac_cv_func_bcopy" = xyes
 then :
-  printf "%s\n" "#define HAVE_BCOPY 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_BCOPY 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "memset" "ac_cv_func_memset"
 if test "x$ac_cv_func_memset" = xyes
 then :
-  printf "%s\n" "#define HAVE_MEMSET 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_MEMSET 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "memcmp" "ac_cv_func_memcmp"
 if test "x$ac_cv_func_memcmp" = xyes
 then :
-  printf "%s\n" "#define HAVE_MEMCMP 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_MEMCMP 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "memcpy" "ac_cv_func_memcpy"
 if test "x$ac_cv_func_memcpy" = xyes
 then :
-  printf "%s\n" "#define HAVE_MEMCPY 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_MEMCPY 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "memmove" "ac_cv_func_memmove"
 if test "x$ac_cv_func_memmove" = xyes
 then :
-  printf "%s\n" "#define HAVE_MEMMOVE 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_MEMMOVE 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "wcslen" "ac_cv_func_wcslen"
 if test "x$ac_cv_func_wcslen" = xyes
 then :
-  printf "%s\n" "#define HAVE_WCSLEN 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_WCSLEN 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "wcslcpy" "ac_cv_func_wcslcpy"
 if test "x$ac_cv_func_wcslcpy" = xyes
 then :
-  printf "%s\n" "#define HAVE_WCSLCPY 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_WCSLCPY 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "wcslcat" "ac_cv_func_wcslcat"
 if test "x$ac_cv_func_wcslcat" = xyes
 then :
-  printf "%s\n" "#define HAVE_WCSLCAT 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_WCSLCAT 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "_wcsdup" "ac_cv_func__wcsdup"
 if test "x$ac_cv_func__wcsdup" = xyes
 then :
-  printf "%s\n" "#define HAVE__WCSDUP 1" >>confdefs.h
+  printf '%s\n' "#define HAVE__WCSDUP 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "wcsdup" "ac_cv_func_wcsdup"
 if test "x$ac_cv_func_wcsdup" = xyes
 then :
-  printf "%s\n" "#define HAVE_WCSDUP 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_WCSDUP 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "wcsstr" "ac_cv_func_wcsstr"
 if test "x$ac_cv_func_wcsstr" = xyes
 then :
-  printf "%s\n" "#define HAVE_WCSSTR 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_WCSSTR 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "wcscmp" "ac_cv_func_wcscmp"
 if test "x$ac_cv_func_wcscmp" = xyes
 then :
-  printf "%s\n" "#define HAVE_WCSCMP 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_WCSCMP 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "wcsncmp" "ac_cv_func_wcsncmp"
 if test "x$ac_cv_func_wcsncmp" = xyes
 then :
-  printf "%s\n" "#define HAVE_WCSNCMP 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_WCSNCMP 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "wcscasecmp" "ac_cv_func_wcscasecmp"
 if test "x$ac_cv_func_wcscasecmp" = xyes
 then :
-  printf "%s\n" "#define HAVE_WCSCASECMP 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_WCSCASECMP 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "_wcsicmp" "ac_cv_func__wcsicmp"
 if test "x$ac_cv_func__wcsicmp" = xyes
 then :
-  printf "%s\n" "#define HAVE__WCSICMP 1" >>confdefs.h
+  printf '%s\n' "#define HAVE__WCSICMP 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "wcsncasecmp" "ac_cv_func_wcsncasecmp"
 if test "x$ac_cv_func_wcsncasecmp" = xyes
 then :
-  printf "%s\n" "#define HAVE_WCSNCASECMP 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_WCSNCASECMP 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "_wcsnicmp" "ac_cv_func__wcsnicmp"
 if test "x$ac_cv_func__wcsnicmp" = xyes
 then :
-  printf "%s\n" "#define HAVE__WCSNICMP 1" >>confdefs.h
+  printf '%s\n' "#define HAVE__WCSNICMP 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "strlen" "ac_cv_func_strlen"
 if test "x$ac_cv_func_strlen" = xyes
 then :
-  printf "%s\n" "#define HAVE_STRLEN 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_STRLEN 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "strlcpy" "ac_cv_func_strlcpy"
 if test "x$ac_cv_func_strlcpy" = xyes
 then :
-  printf "%s\n" "#define HAVE_STRLCPY 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_STRLCPY 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "strlcat" "ac_cv_func_strlcat"
 if test "x$ac_cv_func_strlcat" = xyes
 then :
-  printf "%s\n" "#define HAVE_STRLCAT 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_STRLCAT 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "_strrev" "ac_cv_func__strrev"
 if test "x$ac_cv_func__strrev" = xyes
 then :
-  printf "%s\n" "#define HAVE__STRREV 1" >>confdefs.h
+  printf '%s\n' "#define HAVE__STRREV 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "_strupr" "ac_cv_func__strupr"
 if test "x$ac_cv_func__strupr" = xyes
 then :
-  printf "%s\n" "#define HAVE__STRUPR 1" >>confdefs.h
+  printf '%s\n' "#define HAVE__STRUPR 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "_strlwr" "ac_cv_func__strlwr"
 if test "x$ac_cv_func__strlwr" = xyes
 then :
-  printf "%s\n" "#define HAVE__STRLWR 1" >>confdefs.h
+  printf '%s\n' "#define HAVE__STRLWR 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "index" "ac_cv_func_index"
 if test "x$ac_cv_func_index" = xyes
 then :
-  printf "%s\n" "#define HAVE_INDEX 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_INDEX 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "rindex" "ac_cv_func_rindex"
 if test "x$ac_cv_func_rindex" = xyes
 then :
-  printf "%s\n" "#define HAVE_RINDEX 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_RINDEX 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "strchr" "ac_cv_func_strchr"
 if test "x$ac_cv_func_strchr" = xyes
 then :
-  printf "%s\n" "#define HAVE_STRCHR 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_STRCHR 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "strrchr" "ac_cv_func_strrchr"
 if test "x$ac_cv_func_strrchr" = xyes
 then :
-  printf "%s\n" "#define HAVE_STRRCHR 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_STRRCHR 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "strstr" "ac_cv_func_strstr"
 if test "x$ac_cv_func_strstr" = xyes
 then :
-  printf "%s\n" "#define HAVE_STRSTR 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_STRSTR 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "strtok_r" "ac_cv_func_strtok_r"
 if test "x$ac_cv_func_strtok_r" = xyes
 then :
-  printf "%s\n" "#define HAVE_STRTOK_R 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_STRTOK_R 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "itoa" "ac_cv_func_itoa"
 if test "x$ac_cv_func_itoa" = xyes
 then :
-  printf "%s\n" "#define HAVE_ITOA 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_ITOA 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "_ltoa" "ac_cv_func__ltoa"
 if test "x$ac_cv_func__ltoa" = xyes
 then :
-  printf "%s\n" "#define HAVE__LTOA 1" >>confdefs.h
+  printf '%s\n' "#define HAVE__LTOA 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "_ultoa" "ac_cv_func__ultoa"
 if test "x$ac_cv_func__ultoa" = xyes
 then :
-  printf "%s\n" "#define HAVE__ULTOA 1" >>confdefs.h
+  printf '%s\n' "#define HAVE__ULTOA 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "strtod" "ac_cv_func_strtod"
 if test "x$ac_cv_func_strtod" = xyes
 then :
-  printf "%s\n" "#define HAVE_STRTOD 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_STRTOD 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "strtol" "ac_cv_func_strtol"
 if test "x$ac_cv_func_strtol" = xyes
 then :
-  printf "%s\n" "#define HAVE_STRTOL 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_STRTOL 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "strtoul" "ac_cv_func_strtoul"
 if test "x$ac_cv_func_strtoul" = xyes
 then :
-  printf "%s\n" "#define HAVE_STRTOUL 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_STRTOUL 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "_i64toa" "ac_cv_func__i64toa"
 if test "x$ac_cv_func__i64toa" = xyes
 then :
-  printf "%s\n" "#define HAVE__I64TOA 1" >>confdefs.h
+  printf '%s\n' "#define HAVE__I64TOA 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "_ui64toa" "ac_cv_func__ui64toa"
 if test "x$ac_cv_func__ui64toa" = xyes
 then :
-  printf "%s\n" "#define HAVE__UI64TOA 1" >>confdefs.h
+  printf '%s\n' "#define HAVE__UI64TOA 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "strtoll" "ac_cv_func_strtoll"
 if test "x$ac_cv_func_strtoll" = xyes
 then :
-  printf "%s\n" "#define HAVE_STRTOLL 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_STRTOLL 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "strtoull" "ac_cv_func_strtoull"
 if test "x$ac_cv_func_strtoull" = xyes
 then :
-  printf "%s\n" "#define HAVE_STRTOULL 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_STRTOULL 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "atoi" "ac_cv_func_atoi"
 if test "x$ac_cv_func_atoi" = xyes
 then :
-  printf "%s\n" "#define HAVE_ATOI 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_ATOI 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "atof" "ac_cv_func_atof"
 if test "x$ac_cv_func_atof" = xyes
 then :
-  printf "%s\n" "#define HAVE_ATOF 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_ATOF 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "strcmp" "ac_cv_func_strcmp"
 if test "x$ac_cv_func_strcmp" = xyes
 then :
-  printf "%s\n" "#define HAVE_STRCMP 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_STRCMP 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "strncmp" "ac_cv_func_strncmp"
 if test "x$ac_cv_func_strncmp" = xyes
 then :
-  printf "%s\n" "#define HAVE_STRNCMP 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_STRNCMP 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "_stricmp" "ac_cv_func__stricmp"
 if test "x$ac_cv_func__stricmp" = xyes
 then :
-  printf "%s\n" "#define HAVE__STRICMP 1" >>confdefs.h
+  printf '%s\n' "#define HAVE__STRICMP 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "strcasecmp" "ac_cv_func_strcasecmp"
 if test "x$ac_cv_func_strcasecmp" = xyes
 then :
-  printf "%s\n" "#define HAVE_STRCASECMP 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_STRCASECMP 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "_strnicmp" "ac_cv_func__strnicmp"
 if test "x$ac_cv_func__strnicmp" = xyes
 then :
-  printf "%s\n" "#define HAVE__STRNICMP 1" >>confdefs.h
+  printf '%s\n' "#define HAVE__STRNICMP 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "strncasecmp" "ac_cv_func_strncasecmp"
 if test "x$ac_cv_func_strncasecmp" = xyes
 then :
-  printf "%s\n" "#define HAVE_STRNCASECMP 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_STRNCASECMP 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "strcasestr" "ac_cv_func_strcasestr"
 if test "x$ac_cv_func_strcasestr" = xyes
 then :
-  printf "%s\n" "#define HAVE_STRCASESTR 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_STRCASESTR 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "vsscanf" "ac_cv_func_vsscanf"
 if test "x$ac_cv_func_vsscanf" = xyes
 then :
-  printf "%s\n" "#define HAVE_VSSCANF 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_VSSCANF 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "vsnprintf" "ac_cv_func_vsnprintf"
 if test "x$ac_cv_func_vsnprintf" = xyes
 then :
-  printf "%s\n" "#define HAVE_VSNPRINTF 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_VSNPRINTF 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "fopen64" "ac_cv_func_fopen64"
 if test "x$ac_cv_func_fopen64" = xyes
 then :
-  printf "%s\n" "#define HAVE_FOPEN64 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_FOPEN64 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "fseeko" "ac_cv_func_fseeko"
 if test "x$ac_cv_func_fseeko" = xyes
 then :
-  printf "%s\n" "#define HAVE_FSEEKO 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_FSEEKO 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "fseeko64" "ac_cv_func_fseeko64"
 if test "x$ac_cv_func_fseeko64" = xyes
 then :
-  printf "%s\n" "#define HAVE_FSEEKO64 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_FSEEKO64 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "sigaction" "ac_cv_func_sigaction"
 if test "x$ac_cv_func_sigaction" = xyes
 then :
-  printf "%s\n" "#define HAVE_SIGACTION 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_SIGACTION 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "sigtimedwait" "ac_cv_func_sigtimedwait"
 if test "x$ac_cv_func_sigtimedwait" = xyes
 then :
-  printf "%s\n" "#define HAVE_SIGTIMEDWAIT 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_SIGTIMEDWAIT 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "setjmp" "ac_cv_func_setjmp"
 if test "x$ac_cv_func_setjmp" = xyes
 then :
-  printf "%s\n" "#define HAVE_SETJMP 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_SETJMP 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "nanosleep" "ac_cv_func_nanosleep"
 if test "x$ac_cv_func_nanosleep" = xyes
 then :
-  printf "%s\n" "#define HAVE_NANOSLEEP 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_NANOSLEEP 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "sysconf" "ac_cv_func_sysconf"
 if test "x$ac_cv_func_sysconf" = xyes
 then :
-  printf "%s\n" "#define HAVE_SYSCONF 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_SYSCONF 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "sysctlbyname" "ac_cv_func_sysctlbyname"
 if test "x$ac_cv_func_sysctlbyname" = xyes
 then :
-  printf "%s\n" "#define HAVE_SYSCTLBYNAME 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_SYSCTLBYNAME 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "getauxval" "ac_cv_func_getauxval"
 if test "x$ac_cv_func_getauxval" = xyes
 then :
-  printf "%s\n" "#define HAVE_GETAUXVAL 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_GETAUXVAL 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "elf_aux_info" "ac_cv_func_elf_aux_info"
 if test "x$ac_cv_func_elf_aux_info" = xyes
 then :
-  printf "%s\n" "#define HAVE_ELF_AUX_INFO 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_ELF_AUX_INFO 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "poll" "ac_cv_func_poll"
 if test "x$ac_cv_func_poll" = xyes
 then :
-  printf "%s\n" "#define HAVE_POLL 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_POLL 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "memfd_create" "ac_cv_func_memfd_create"
 if test "x$ac_cv_func_memfd_create" = xyes
 then :
-  printf "%s\n" "#define HAVE_MEMFD_CREATE 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_MEMFD_CREATE 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "posix_fallocate" "ac_cv_func_posix_fallocate"
 if test "x$ac_cv_func_posix_fallocate" = xyes
 then :
-  printf "%s\n" "#define HAVE_POSIX_FALLOCATE 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_POSIX_FALLOCATE 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "_Exit" "ac_cv_func__Exit"
 if test "x$ac_cv_func__Exit" = xyes
 then :
-  printf "%s\n" "#define HAVE__EXIT 1" >>confdefs.h
+  printf '%s\n' "#define HAVE__EXIT 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "getexecpath" "ac_cv_func_getexecpath"
 if test "x$ac_cv_func_getexecpath" = xyes
 then :
-  printf "%s\n" "#define HAVE_GETEXECPATH 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_GETEXECPATH 1" >>confdefs.h
 
 fi
 
 
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for pow in -lm" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for pow in -lm" >&5
 printf %s "checking for pow in -lm... " >&6; }
 if test ${ac_cv_lib_m_pow+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char pow ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char pow (void);
 int
 main (void)
 {
@@ -19849,15 +20141,17 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_m_pow=yes
-else $as_nop
-  ac_cv_lib_m_pow=no
+else case e in #(
+  e) ac_cv_lib_m_pow=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_pow" >&5
-printf "%s\n" "$ac_cv_lib_m_pow" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_pow" >&5
+printf '%s\n' "$ac_cv_lib_m_pow" >&6; }
 if test "x$ac_cv_lib_m_pow" = xyes
 then :
   LIBS="$LIBS -lm"; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm"
@@ -19866,259 +20160,259 @@ fi
     ac_fn_c_check_func "$LINENO" "acos" "ac_cv_func_acos"
 if test "x$ac_cv_func_acos" = xyes
 then :
-  printf "%s\n" "#define HAVE_ACOS 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_ACOS 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "acosf" "ac_cv_func_acosf"
 if test "x$ac_cv_func_acosf" = xyes
 then :
-  printf "%s\n" "#define HAVE_ACOSF 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_ACOSF 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "asin" "ac_cv_func_asin"
 if test "x$ac_cv_func_asin" = xyes
 then :
-  printf "%s\n" "#define HAVE_ASIN 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_ASIN 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "asinf" "ac_cv_func_asinf"
 if test "x$ac_cv_func_asinf" = xyes
 then :
-  printf "%s\n" "#define HAVE_ASINF 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_ASINF 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "atan" "ac_cv_func_atan"
 if test "x$ac_cv_func_atan" = xyes
 then :
-  printf "%s\n" "#define HAVE_ATAN 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_ATAN 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "atanf" "ac_cv_func_atanf"
 if test "x$ac_cv_func_atanf" = xyes
 then :
-  printf "%s\n" "#define HAVE_ATANF 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_ATANF 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "atan2" "ac_cv_func_atan2"
 if test "x$ac_cv_func_atan2" = xyes
 then :
-  printf "%s\n" "#define HAVE_ATAN2 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_ATAN2 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "atan2f" "ac_cv_func_atan2f"
 if test "x$ac_cv_func_atan2f" = xyes
 then :
-  printf "%s\n" "#define HAVE_ATAN2F 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_ATAN2F 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "ceil" "ac_cv_func_ceil"
 if test "x$ac_cv_func_ceil" = xyes
 then :
-  printf "%s\n" "#define HAVE_CEIL 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_CEIL 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "ceilf" "ac_cv_func_ceilf"
 if test "x$ac_cv_func_ceilf" = xyes
 then :
-  printf "%s\n" "#define HAVE_CEILF 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_CEILF 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "copysign" "ac_cv_func_copysign"
 if test "x$ac_cv_func_copysign" = xyes
 then :
-  printf "%s\n" "#define HAVE_COPYSIGN 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_COPYSIGN 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "copysignf" "ac_cv_func_copysignf"
 if test "x$ac_cv_func_copysignf" = xyes
 then :
-  printf "%s\n" "#define HAVE_COPYSIGNF 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_COPYSIGNF 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "cos" "ac_cv_func_cos"
 if test "x$ac_cv_func_cos" = xyes
 then :
-  printf "%s\n" "#define HAVE_COS 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_COS 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "cosf" "ac_cv_func_cosf"
 if test "x$ac_cv_func_cosf" = xyes
 then :
-  printf "%s\n" "#define HAVE_COSF 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_COSF 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "exp" "ac_cv_func_exp"
 if test "x$ac_cv_func_exp" = xyes
 then :
-  printf "%s\n" "#define HAVE_EXP 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_EXP 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "expf" "ac_cv_func_expf"
 if test "x$ac_cv_func_expf" = xyes
 then :
-  printf "%s\n" "#define HAVE_EXPF 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_EXPF 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "fabs" "ac_cv_func_fabs"
 if test "x$ac_cv_func_fabs" = xyes
 then :
-  printf "%s\n" "#define HAVE_FABS 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_FABS 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "fabsf" "ac_cv_func_fabsf"
 if test "x$ac_cv_func_fabsf" = xyes
 then :
-  printf "%s\n" "#define HAVE_FABSF 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_FABSF 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "floor" "ac_cv_func_floor"
 if test "x$ac_cv_func_floor" = xyes
 then :
-  printf "%s\n" "#define HAVE_FLOOR 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_FLOOR 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "floorf" "ac_cv_func_floorf"
 if test "x$ac_cv_func_floorf" = xyes
 then :
-  printf "%s\n" "#define HAVE_FLOORF 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_FLOORF 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "trunc" "ac_cv_func_trunc"
 if test "x$ac_cv_func_trunc" = xyes
 then :
-  printf "%s\n" "#define HAVE_TRUNC 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_TRUNC 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "truncf" "ac_cv_func_truncf"
 if test "x$ac_cv_func_truncf" = xyes
 then :
-  printf "%s\n" "#define HAVE_TRUNCF 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_TRUNCF 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "fmod" "ac_cv_func_fmod"
 if test "x$ac_cv_func_fmod" = xyes
 then :
-  printf "%s\n" "#define HAVE_FMOD 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_FMOD 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "fmodf" "ac_cv_func_fmodf"
 if test "x$ac_cv_func_fmodf" = xyes
 then :
-  printf "%s\n" "#define HAVE_FMODF 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_FMODF 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "log" "ac_cv_func_log"
 if test "x$ac_cv_func_log" = xyes
 then :
-  printf "%s\n" "#define HAVE_LOG 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_LOG 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "logf" "ac_cv_func_logf"
 if test "x$ac_cv_func_logf" = xyes
 then :
-  printf "%s\n" "#define HAVE_LOGF 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_LOGF 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "log10" "ac_cv_func_log10"
 if test "x$ac_cv_func_log10" = xyes
 then :
-  printf "%s\n" "#define HAVE_LOG10 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_LOG10 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "log10f" "ac_cv_func_log10f"
 if test "x$ac_cv_func_log10f" = xyes
 then :
-  printf "%s\n" "#define HAVE_LOG10F 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_LOG10F 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "lround" "ac_cv_func_lround"
 if test "x$ac_cv_func_lround" = xyes
 then :
-  printf "%s\n" "#define HAVE_LROUND 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_LROUND 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "lroundf" "ac_cv_func_lroundf"
 if test "x$ac_cv_func_lroundf" = xyes
 then :
-  printf "%s\n" "#define HAVE_LROUNDF 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_LROUNDF 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "pow" "ac_cv_func_pow"
 if test "x$ac_cv_func_pow" = xyes
 then :
-  printf "%s\n" "#define HAVE_POW 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_POW 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "powf" "ac_cv_func_powf"
 if test "x$ac_cv_func_powf" = xyes
 then :
-  printf "%s\n" "#define HAVE_POWF 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_POWF 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "round" "ac_cv_func_round"
 if test "x$ac_cv_func_round" = xyes
 then :
-  printf "%s\n" "#define HAVE_ROUND 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_ROUND 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "roundf" "ac_cv_func_roundf"
 if test "x$ac_cv_func_roundf" = xyes
 then :
-  printf "%s\n" "#define HAVE_ROUNDF 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_ROUNDF 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "scalbn" "ac_cv_func_scalbn"
 if test "x$ac_cv_func_scalbn" = xyes
 then :
-  printf "%s\n" "#define HAVE_SCALBN 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_SCALBN 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "scalbnf" "ac_cv_func_scalbnf"
 if test "x$ac_cv_func_scalbnf" = xyes
 then :
-  printf "%s\n" "#define HAVE_SCALBNF 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_SCALBNF 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "sin" "ac_cv_func_sin"
 if test "x$ac_cv_func_sin" = xyes
 then :
-  printf "%s\n" "#define HAVE_SIN 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_SIN 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "sinf" "ac_cv_func_sinf"
 if test "x$ac_cv_func_sinf" = xyes
 then :
-  printf "%s\n" "#define HAVE_SINF 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_SINF 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "sqrt" "ac_cv_func_sqrt"
 if test "x$ac_cv_func_sqrt" = xyes
 then :
-  printf "%s\n" "#define HAVE_SQRT 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_SQRT 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "sqrtf" "ac_cv_func_sqrtf"
 if test "x$ac_cv_func_sqrtf" = xyes
 then :
-  printf "%s\n" "#define HAVE_SQRTF 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_SQRTF 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "tan" "ac_cv_func_tan"
 if test "x$ac_cv_func_tan" = xyes
 then :
-  printf "%s\n" "#define HAVE_TAN 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_TAN 1" >>confdefs.h
 
 fi
 ac_fn_c_check_func "$LINENO" "tanf" "ac_cv_func_tanf"
 if test "x$ac_cv_func_tanf" = xyes
 then :
-  printf "%s\n" "#define HAVE_TANF 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_TANF 1" >>confdefs.h
 
 fi
 
 
     if test x$enable_system_iconv = xyes; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for iconv in libc" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for iconv in libc" >&5
 printf %s "checking for iconv in libc... " >&6; }
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -20140,15 +20434,16 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   have_libc_iconv=yes
-else $as_nop
-  have_libc_iconv=no
+else case e in #(
+  e) have_libc_iconv=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_libc_iconv" >&5
-printf "%s\n" "$have_libc_iconv" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_libc_iconv" >&5
+printf '%s\n' "$have_libc_iconv" >&6; }
 
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for iconv in libiconv" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for iconv in libiconv" >&5
 printf %s "checking for iconv in libiconv... " >&6; }
         save_LIBS="$LIBS"
         LIBS="$LIBS -liconv"
@@ -20171,18 +20466,19 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   have_libiconv=yes
-else $as_nop
-  have_libiconv=no
+else case e in #(
+  e) have_libiconv=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
         LIBS="$save_LIBS"
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_libiconv" >&5
-printf "%s\n" "$have_libiconv" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_libiconv" >&5
+printf '%s\n' "$have_libiconv" >&6; }
 
         if test x$have_libc_iconv = xyes || test x$have_libiconv = xyes; then
 
-printf "%s\n" "#define HAVE_ICONV 1" >>confdefs.h
+printf '%s\n' "#define HAVE_ICONV 1" >>confdefs.h
 
 
            if test x$have_libiconv = xyes; then
@@ -20194,7 +20490,7 @@ printf "%s\n" "#define HAVE_ICONV 1" >>confdefs.h
            fi
            if test x$use_libiconv = xyes; then
 
-printf "%s\n" "#define SDL_USE_LIBICONV 1" >>confdefs.h
+printf '%s\n' "#define SDL_USE_LIBICONV 1" >>confdefs.h
 
               EXTRA_LDFLAGS="$EXTRA_LDFLAGS -liconv"
               echo "-- Using iconv from libiconv"
@@ -20209,7 +20505,7 @@ printf "%s\n" "#define SDL_USE_LIBICONV 1" >>confdefs.h
 if test "x$ac_cv_member_struct_sigaction_sa_sigaction" = xyes
 then :
 
-printf "%s\n" "#define HAVE_SA_SIGACTION 1" >>confdefs.h
+printf '%s\n' "#define HAVE_SA_SIGACTION 1" >>confdefs.h
 
 fi
 
@@ -20217,7 +20513,7 @@ fi
     ac_fn_c_check_header_compile "$LINENO" "libunwind.h" "ac_cv_header_libunwind_h" "$ac_includes_default"
 if test "x$ac_cv_header_libunwind_h" = xyes
 then :
-  printf "%s\n" "#define HAVE_LIBUNWIND_H 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_LIBUNWIND_H 1" >>confdefs.h
 
 fi
 
@@ -20228,13 +20524,14 @@ fi
 if test ${enable_gcc_atomics+y}
 then :
   enableval=$enable_gcc_atomics;
-else $as_nop
-  enable_gcc_atomics=yes
+else case e in #(
+  e) enable_gcc_atomics=yes ;;
+esac
 fi
 
 if test x$enable_gcc_atomics = xyes; then
     have_gcc_atomics=no
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GCC builtin atomic operations" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for GCC builtin atomic operations" >&5
 printf %s "checking for GCC builtin atomic operations... " >&6; }
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -20261,12 +20558,12 @@ then :
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_gcc_atomics" >&5
-printf "%s\n" "$have_gcc_atomics" >&6; }
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_gcc_atomics" >&5
+printf '%s\n' "$have_gcc_atomics" >&6; }
 
     if test x$have_gcc_atomics = xyes; then
 
-printf "%s\n" "#define HAVE_GCC_ATOMICS 1" >>confdefs.h
+printf '%s\n' "#define HAVE_GCC_ATOMICS 1" >>confdefs.h
 
     else
         # See if we have the minimum operation needed for GCC atomics
@@ -20293,7 +20590,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
         if test x$have_gcc_sync_lock_test_and_set = xyes; then
 
-printf "%s\n" "#define HAVE_GCC_SYNC_LOCK_TEST_AND_SET 1" >>confdefs.h
+printf '%s\n' "#define HAVE_GCC_SYNC_LOCK_TEST_AND_SET 1" >>confdefs.h
 
         fi
     fi
@@ -20338,13 +20635,14 @@ esac
 if test ${enable_atomic+y}
 then :
   enableval=$enable_atomic;
-else $as_nop
-  enable_atomic=$default_atomic
+else case e in #(
+  e) enable_atomic=$default_atomic ;;
+esac
 fi
 
 if test x$enable_atomic != xyes; then
 
-printf "%s\n" "#define SDL_ATOMIC_DISABLED 1" >>confdefs.h
+printf '%s\n' "#define SDL_ATOMIC_DISABLED 1" >>confdefs.h
 
 else
     SUMMARY_modules="${SUMMARY_modules} atomic"
@@ -20353,13 +20651,14 @@ fi
 if test ${enable_audio+y}
 then :
   enableval=$enable_audio;
-else $as_nop
-  enable_audio=yes
+else case e in #(
+  e) enable_audio=yes ;;
+esac
 fi
 
 if test x$enable_audio != xyes; then
 
-printf "%s\n" "#define SDL_AUDIO_DISABLED 1" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DISABLED 1" >>confdefs.h
 
 else
     SUMMARY_modules="${SUMMARY_modules} audio"
@@ -20368,13 +20667,14 @@ fi
 if test ${enable_video+y}
 then :
   enableval=$enable_video;
-else $as_nop
-  enable_video=yes
+else case e in #(
+  e) enable_video=yes ;;
+esac
 fi
 
 if test x$enable_video != xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_DISABLED 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DISABLED 1" >>confdefs.h
 
 else
     SUMMARY_modules="${SUMMARY_modules} video"
@@ -20383,13 +20683,14 @@ fi
 if test ${enable_render+y}
 then :
   enableval=$enable_render;
-else $as_nop
-  enable_render=yes
+else case e in #(
+  e) enable_render=yes ;;
+esac
 fi
 
 if test x$enable_render != xyes; then
 
-printf "%s\n" "#define SDL_RENDER_DISABLED 1" >>confdefs.h
+printf '%s\n' "#define SDL_RENDER_DISABLED 1" >>confdefs.h
 
 else
     SUMMARY_modules="${SUMMARY_modules} render"
@@ -20398,13 +20699,14 @@ fi
 if test ${enable_events+y}
 then :
   enableval=$enable_events;
-else $as_nop
-  enable_events=yes
+else case e in #(
+  e) enable_events=yes ;;
+esac
 fi
 
 if test x$enable_events != xyes; then
 
-printf "%s\n" "#define SDL_EVENTS_DISABLED 1" >>confdefs.h
+printf '%s\n' "#define SDL_EVENTS_DISABLED 1" >>confdefs.h
 
 else
     SUMMARY_modules="${SUMMARY_modules} events"
@@ -20413,13 +20715,14 @@ fi
 if test ${enable_joystick+y}
 then :
   enableval=$enable_joystick;
-else $as_nop
-  enable_joystick=yes
+else case e in #(
+  e) enable_joystick=yes ;;
+esac
 fi
 
 if test x$enable_joystick != xyes; then
 
-printf "%s\n" "#define SDL_JOYSTICK_DISABLED 1" >>confdefs.h
+printf '%s\n' "#define SDL_JOYSTICK_DISABLED 1" >>confdefs.h
 
 else
     SUMMARY_modules="${SUMMARY_modules} joystick"
@@ -20428,13 +20731,14 @@ fi
 if test ${enable_haptic+y}
 then :
   enableval=$enable_haptic;
-else $as_nop
-  enable_haptic=yes
+else case e in #(
+  e) enable_haptic=yes ;;
+esac
 fi
 
 if test x$enable_haptic != xyes; then
 
-printf "%s\n" "#define SDL_HAPTIC_DISABLED 1" >>confdefs.h
+printf '%s\n' "#define SDL_HAPTIC_DISABLED 1" >>confdefs.h
 
 else
     SUMMARY_modules="${SUMMARY_modules} haptic"
@@ -20443,13 +20747,14 @@ fi
 if test ${enable_hidapi+y}
 then :
   enableval=$enable_hidapi;
-else $as_nop
-  enable_hidapi=yes
+else case e in #(
+  e) enable_hidapi=yes ;;
+esac
 fi
 
 if test x$enable_hidapi != xyes; then
 
-printf "%s\n" "#define SDL_HIDAPI_DISABLED 1" >>confdefs.h
+printf '%s\n' "#define SDL_HIDAPI_DISABLED 1" >>confdefs.h
 
 else
     SUMMARY_modules="${SUMMARY_modules} hidapi"
@@ -20458,13 +20763,14 @@ fi
 if test ${enable_sensor+y}
 then :
   enableval=$enable_sensor;
-else $as_nop
-  enable_sensor=yes
+else case e in #(
+  e) enable_sensor=yes ;;
+esac
 fi
 
 if test x$enable_sensor != xyes; then
 
-printf "%s\n" "#define SDL_SENSOR_DISABLED 1" >>confdefs.h
+printf '%s\n' "#define SDL_SENSOR_DISABLED 1" >>confdefs.h
 
 else
     SUMMARY_modules="${SUMMARY_modules} sensor"
@@ -20473,13 +20779,14 @@ fi
 if test ${enable_power+y}
 then :
   enableval=$enable_power;
-else $as_nop
-  enable_power=yes
+else case e in #(
+  e) enable_power=yes ;;
+esac
 fi
 
 if test x$enable_power != xyes; then
 
-printf "%s\n" "#define SDL_POWER_DISABLED 1" >>confdefs.h
+printf '%s\n' "#define SDL_POWER_DISABLED 1" >>confdefs.h
 
 else
     SUMMARY_modules="${SUMMARY_modules} power"
@@ -20488,13 +20795,14 @@ fi
 if test ${enable_filesystem+y}
 then :
   enableval=$enable_filesystem;
-else $as_nop
-  enable_filesystem=yes
+else case e in #(
+  e) enable_filesystem=yes ;;
+esac
 fi
 
 if test x$enable_filesystem != xyes; then
 
-printf "%s\n" "#define SDL_FILESYSTEM_DISABLED 1" >>confdefs.h
+printf '%s\n' "#define SDL_FILESYSTEM_DISABLED 1" >>confdefs.h
 
 else
     SUMMARY_modules="${SUMMARY_modules} filesystem"
@@ -20506,7 +20814,7 @@ fi
 enable_threads=yes
 if test x$enable_threads != xyes; then
 
-printf "%s\n" "#define SDL_THREADS_DISABLED 1" >>confdefs.h
+printf '%s\n' "#define SDL_THREADS_DISABLED 1" >>confdefs.h
 
 else
     SUMMARY_modules="${SUMMARY_modules} threads"
@@ -20515,13 +20823,14 @@ fi
 if test ${enable_timers+y}
 then :
   enableval=$enable_timers;
-else $as_nop
-  enable_timers=yes
+else case e in #(
+  e) enable_timers=yes ;;
+esac
 fi
 
 if test x$enable_timers != xyes; then
 
-printf "%s\n" "#define SDL_TIMERS_DISABLED 1" >>confdefs.h
+printf '%s\n' "#define SDL_TIMERS_DISABLED 1" >>confdefs.h
 
 else
     SUMMARY_modules="${SUMMARY_modules} timers"
@@ -20530,13 +20839,14 @@ fi
 if test ${enable_file+y}
 then :
   enableval=$enable_file;
-else $as_nop
-  enable_file=yes
+else case e in #(
+  e) enable_file=yes ;;
+esac
 fi
 
 if test x$enable_file != xyes; then
 
-printf "%s\n" "#define SDL_FILE_DISABLED 1" >>confdefs.h
+printf '%s\n' "#define SDL_FILE_DISABLED 1" >>confdefs.h
 
 else
     SUMMARY_modules="${SUMMARY_modules} file"
@@ -20545,13 +20855,14 @@ fi
 if test ${enable_misc+y}
 then :
   enableval=$enable_misc;
-else $as_nop
-  enable_misc=yes
+else case e in #(
+  e) enable_misc=yes ;;
+esac
 fi
 
 if test x$enable_misc != xyes; then
 
-printf "%s\n" "#define SDL_MISC_DISABLED 1" >>confdefs.h
+printf '%s\n' "#define SDL_MISC_DISABLED 1" >>confdefs.h
 
 else
     SUMMARY_modules="${SUMMARY_modules} misc"
@@ -20560,13 +20871,14 @@ fi
 if test ${enable_locale+y}
 then :
   enableval=$enable_locale;
-else $as_nop
-  enable_locale=yes
+else case e in #(
+  e) enable_locale=yes ;;
+esac
 fi
 
 if test x$enable_locale != xyes; then
 
-printf "%s\n" "#define SDL_LOCALE_DISABLED 1" >>confdefs.h
+printf '%s\n' "#define SDL_LOCALE_DISABLED 1" >>confdefs.h
 
 else
     SUMMARY_modules="${SUMMARY_modules} locale"
@@ -20575,13 +20887,14 @@ fi
 if test ${enable_loadso+y}
 then :
   enableval=$enable_loadso;
-else $as_nop
-  enable_loadso=yes
+else case e in #(
+  e) enable_loadso=yes ;;
+esac
 fi
 
 if test x$enable_loadso != xyes; then
 
-printf "%s\n" "#define SDL_LOADSO_DISABLED 1" >>confdefs.h
+printf '%s\n' "#define SDL_LOADSO_DISABLED 1" >>confdefs.h
 
 else
     SUMMARY_modules="${SUMMARY_modules} loadso"
@@ -20590,13 +20903,14 @@ fi
 if test ${enable_cpuinfo+y}
 then :
   enableval=$enable_cpuinfo;
-else $as_nop
-  enable_cpuinfo=yes
+else case e in #(
+  e) enable_cpuinfo=yes ;;
+esac
 fi
 
 if test x$enable_cpuinfo != xyes; then
 
-printf "%s\n" "#define SDL_CPUINFO_DISABLED 1" >>confdefs.h
+printf '%s\n' "#define SDL_CPUINFO_DISABLED 1" >>confdefs.h
 
 else
     SUMMARY_modules="${SUMMARY_modules} cpuinfo"
@@ -20605,8 +20919,9 @@ fi
 if test ${enable_assembly+y}
 then :
   enableval=$enable_assembly;
-else $as_nop
-  enable_assembly=yes
+else case e in #(
+  e) enable_assembly=yes ;;
+esac
 fi
 
 if test x$enable_assembly = xyes; then
@@ -20631,8 +20946,9 @@ if test x$enable_assembly = xyes; then
 if test ${enable_ssemath+y}
 then :
   enableval=$enable_ssemath;
-else $as_nop
-  enable_ssemath=$default_ssemath
+else case e in #(
+  e) enable_ssemath=$default_ssemath ;;
+esac
 fi
 
     if test x$enable_ssemath = xno; then
@@ -20645,14 +20961,15 @@ fi
 if test ${enable_mmx+y}
 then :
   enableval=$enable_mmx;
-else $as_nop
-  enable_mmx=yes
+else case e in #(
+  e) enable_mmx=yes ;;
+esac
 fi
 
     if test x$enable_mmx = xyes; then
         save_CFLAGS="$CFLAGS"
         have_gcc_mmx=no
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GCC -mmmx option" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for GCC -mmmx option" >&5
 printf %s "checking for GCC -mmmx option... " >&6; }
         mmx_CFLAGS="-mmmx"
         CFLAGS="$save_CFLAGS $mmx_CFLAGS"
@@ -20687,8 +21004,8 @@ then :
   have_gcc_mmx=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_gcc_mmx" >&5
-printf "%s\n" "$have_gcc_mmx" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_gcc_mmx" >&5
+printf '%s\n' "$have_gcc_mmx" >&6; }
         CFLAGS="$save_CFLAGS"
 
         if test x$have_gcc_mmx = xyes; then
@@ -20701,14 +21018,15 @@ printf "%s\n" "$have_gcc_mmx" >&6; }
 if test ${enable_3dnow+y}
 then :
   enableval=$enable_3dnow;
-else $as_nop
-  enable_3dnow=no
+else case e in #(
+  e) enable_3dnow=no ;;
+esac
 fi
 
     if test x$enable_3dnow = xyes; then
         save_CFLAGS="$CFLAGS"
         have_gcc_3dnow=no
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GCC -m3dnow option" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for GCC -m3dnow option" >&5
 printf %s "checking for GCC -m3dnow option... " >&6; }
         amd3dnow_CFLAGS="-m3dnow"
         CFLAGS="$save_CFLAGS $amd3dnow_CFLAGS"
@@ -20738,8 +21056,8 @@ then :
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_gcc_3dnow" >&5
-printf "%s\n" "$have_gcc_3dnow" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_gcc_3dnow" >&5
+printf '%s\n' "$have_gcc_3dnow" >&6; }
         CFLAGS="$save_CFLAGS"
 
         if test x$have_gcc_3dnow = xyes; then
@@ -20752,14 +21070,15 @@ printf "%s\n" "$have_gcc_3dnow" >&6; }
 if test ${enable_sse+y}
 then :
   enableval=$enable_sse;
-else $as_nop
-  enable_sse=yes
+else case e in #(
+  e) enable_sse=yes ;;
+esac
 fi
 
     if test x$enable_sse = xyes; then
         save_CFLAGS="$CFLAGS"
         have_gcc_sse=no
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GCC -msse option" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for GCC -msse option" >&5
 printf %s "checking for GCC -msse option... " >&6; }
         sse_CFLAGS="-msse"
         CFLAGS="$save_CFLAGS $sse_CFLAGS"
@@ -20794,8 +21113,8 @@ then :
   have_gcc_sse=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_gcc_sse" >&5
-printf "%s\n" "$have_gcc_sse" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_gcc_sse" >&5
+printf '%s\n' "$have_gcc_sse" >&6; }
         CFLAGS="$save_CFLAGS"
 
         if test x$have_gcc_sse = xyes; then
@@ -20808,14 +21127,15 @@ printf "%s\n" "$have_gcc_sse" >&6; }
 if test ${enable_sse2+y}
 then :
   enableval=$enable_sse2;
-else $as_nop
-  enable_sse2=$default_ssemath
+else case e in #(
+  e) enable_sse2=$default_ssemath ;;
+esac
 fi
 
     if test x$enable_sse2 = xyes; then
         save_CFLAGS="$CFLAGS"
         have_gcc_sse2=no
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GCC -msse2 option" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for GCC -msse2 option" >&5
 printf %s "checking for GCC -msse2 option... " >&6; }
         sse2_CFLAGS="-msse2"
         CFLAGS="$save_CFLAGS $sse2_CFLAGS"
@@ -20850,8 +21170,8 @@ then :
   have_gcc_sse2=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_gcc_sse2" >&5
-printf "%s\n" "$have_gcc_sse2" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_gcc_sse2" >&5
+printf '%s\n' "$have_gcc_sse2" >&6; }
         CFLAGS="$save_CFLAGS"
 
         if test x$have_gcc_sse2 = xyes; then
@@ -20864,14 +21184,15 @@ printf "%s\n" "$have_gcc_sse2" >&6; }
 if test ${enable_sse3+y}
 then :
   enableval=$enable_sse3;
-else $as_nop
-  enable_sse3=$default_ssemath
+else case e in #(
+  e) enable_sse3=$default_ssemath ;;
+esac
 fi
 
     if test x$enable_sse3 = xyes; then
         save_CFLAGS="$CFLAGS"
         have_gcc_sse3=no
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GCC -msse3 option" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for GCC -msse3 option" >&5
 printf %s "checking for GCC -msse3 option... " >&6; }
         sse3_CFLAGS="-msse3"
         CFLAGS="$save_CFLAGS $sse3_CFLAGS"
@@ -20906,8 +21227,8 @@ then :
   have_gcc_sse3=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_gcc_sse3" >&5
-printf "%s\n" "$have_gcc_sse3" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_gcc_sse3" >&5
+printf '%s\n' "$have_gcc_sse3" >&6; }
         CFLAGS="$save_CFLAGS"
 
         if test x$have_gcc_sse3 = xyes; then
@@ -20916,7 +21237,7 @@ printf "%s\n" "$have_gcc_sse3" >&6; }
         fi
     fi
 
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for immintrin.h" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for immintrin.h" >&5
 printf %s "checking for immintrin.h... " >&6; }
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -20932,15 +21253,16 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   have_immintrin_h_hdr=yes
-else $as_nop
-  have_immintrin_h_hdr=no
+else case e in #(
+  e) have_immintrin_h_hdr=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_immintrin_h_hdr" >&5
-printf "%s\n" "$have_immintrin_h_hdr" >&6; }
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_immintrin_h_hdr" >&5
+printf '%s\n' "$have_immintrin_h_hdr" >&6; }
     if test x$have_immintrin_h_hdr = xyes; then
 
-printf "%s\n" "#define HAVE_IMMINTRIN_H 1" >>confdefs.h
+printf '%s\n' "#define HAVE_IMMINTRIN_H 1" >>confdefs.h
 
     fi
 
@@ -20948,8 +21270,9 @@ printf "%s\n" "#define HAVE_IMMINTRIN_H 1" >>confdefs.h
 if test ${enable_altivec+y}
 then :
   enableval=$enable_altivec;
-else $as_nop
-  enable_altivec=yes
+else case e in #(
+  e) enable_altivec=yes ;;
+esac
 fi
 
     if test x$enable_altivec = xyes; then
@@ -20959,7 +21282,7 @@ fi
         altivec_CFLAGS="-maltivec"
         CFLAGS="$save_CFLAGS $altivec_CFLAGS"
 
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for Altivec with GCC altivec.h and -maltivec option" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for Altivec with GCC altivec.h and -maltivec option" >&5
 printf %s "checking for Altivec with GCC altivec.h and -maltivec option... " >&6; }
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -20985,11 +21308,11 @@ then :
 
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_gcc_altivec" >&5
-printf "%s\n" "$have_gcc_altivec" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_gcc_altivec" >&5
+printf '%s\n' "$have_gcc_altivec" >&6; }
 
         if test x$have_gcc_altivec = xno; then
-            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for Altivec with GCC -maltivec option" >&5
+            { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for Altivec with GCC -maltivec option" >&5
 printf %s "checking for Altivec with GCC -maltivec option... " >&6; }
             cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -21011,12 +21334,12 @@ then :
   have_gcc_altivec=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_gcc_altivec" >&5
-printf "%s\n" "$have_gcc_altivec" >&6; }
+            { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_gcc_altivec" >&5
+printf '%s\n' "$have_gcc_altivec" >&6; }
         fi
 
         if test x$have_gcc_altivec = xno; then
-            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for Altivec with GCC altivec.h and -faltivec option" >&5
+            { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for Altivec with GCC altivec.h and -faltivec option" >&5
 printf %s "checking for Altivec with GCC altivec.h and -faltivec option... " >&6; }
             altivec_CFLAGS="-faltivec"
             CFLAGS="$save_CFLAGS $altivec_CFLAGS"
@@ -21044,12 +21367,12 @@ then :
 
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_gcc_altivec" >&5
-printf "%s\n" "$have_gcc_altivec" >&6; }
+            { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_gcc_altivec" >&5
+printf '%s\n' "$have_gcc_altivec" >&6; }
         fi
 
         if test x$have_gcc_altivec = xno; then
-            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for Altivec with GCC -faltivec option" >&5
+            { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for Altivec with GCC -faltivec option" >&5
 printf %s "checking for Altivec with GCC -faltivec option... " >&6; }
             cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -21071,18 +21394,18 @@ then :
   have_gcc_altivec=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_gcc_altivec" >&5
-printf "%s\n" "$have_gcc_altivec" >&6; }
+            { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_gcc_altivec" >&5
+printf '%s\n' "$have_gcc_altivec" >&6; }
         fi
         CFLAGS="$save_CFLAGS"
 
         if test x$have_gcc_altivec = xyes; then
 
-printf "%s\n" "#define SDL_ALTIVEC_BLITTERS 1" >>confdefs.h
+printf '%s\n' "#define SDL_ALTIVEC_BLITTERS 1" >>confdefs.h
 
             if test x$have_altivec_h_hdr = xyes; then
 
-printf "%s\n" "#define HAVE_ALTIVEC_H 1" >>confdefs.h
+printf '%s\n' "#define HAVE_ALTIVEC_H 1" >>confdefs.h
 
             fi
             EXTRA_CFLAGS="$EXTRA_CFLAGS $altivec_CFLAGS"
@@ -21095,14 +21418,15 @@ fi
 if test ${enable_lsx+y}
 then :
   enableval=$enable_lsx;
-else $as_nop
-  enable_lsx=yes
+else case e in #(
+  e) enable_lsx=yes ;;
+esac
 fi
 
 if test x$enable_lsx = xyes; then
     save_CFLAGS="$CFLAGS"
     have_gcc_lsx=no
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GCC -mlsx option" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for GCC -mlsx option" >&5
 printf %s "checking for GCC -mlsx option... " >&6; }
     lsx_CFLAGS="-mlsx"
     CFLAGS="$save_CFLAGS $lsx_CFLAGS"
@@ -21127,8 +21451,8 @@ then :
   have_gcc_lsx=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_gcc_lsx" >&5
-printf "%s\n" "$have_gcc_lsx" >&6; }
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_gcc_lsx" >&5
+printf '%s\n' "$have_gcc_lsx" >&6; }
     CFLAGS="$save_CFLAGS"
 
     if test x$have_gcc_lsx = xyes; then
@@ -21137,7 +21461,7 @@ printf "%s\n" "$have_gcc_lsx" >&6; }
     fi
 fi
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for lsxintrin.h" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for lsxintrin.h" >&5
 printf %s "checking for lsxintrin.h... " >&6; }
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -21153,15 +21477,16 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   have_lsxintrin_h_hdr=yes
-else $as_nop
-  have_lsxintrin_h_hdr=no
+else case e in #(
+  e) have_lsxintrin_h_hdr=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_lsxintrin_h_hdr" >&5
-printf "%s\n" "$have_lsxintrin_h_hdr" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_lsxintrin_h_hdr" >&5
+printf '%s\n' "$have_lsxintrin_h_hdr" >&6; }
 if test x$have_lsxintrin_h_hdr = xyes; then
 
-printf "%s\n" "#define HAVE_LSXINTRIN_H 1" >>confdefs.h
+printf '%s\n' "#define HAVE_LSXINTRIN_H 1" >>confdefs.h
 
 fi
 
@@ -21171,8 +21496,9 @@ CheckOSS()
 if test ${enable_oss+y}
 then :
   enableval=$enable_oss;
-else $as_nop
-  enable_oss=maybe
+else case e in #(
+  e) enable_oss=maybe ;;
+esac
 fi
 
     if test x$enable_oss = xmaybe; then
@@ -21180,7 +21506,7 @@ fi
     fi
 
     if test x$enable_audio = xyes -a x$enable_oss = xyes; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for OSS audio support" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for OSS audio support" >&5
 printf %s "checking for OSS audio support... " >&6; }
         have_oss=no
         if test x$have_oss != xyes; then
@@ -21205,12 +21531,12 @@ then :
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
         fi
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_oss" >&5
-printf "%s\n" "$have_oss" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_oss" >&5
+printf '%s\n' "$have_oss" >&6; }
         if test x$have_oss = xyes; then
             SUMMARY_audio="${SUMMARY_audio} oss"
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_OSS 1" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_OSS 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/audio/dsp/*.c"
             have_audio=yes
@@ -21230,8 +21556,9 @@ CheckALSA()
 if test ${enable_alsa+y}
 then :
   enableval=$enable_alsa;
-else $as_nop
-  enable_alsa=yes
+else case e in #(
+  e) enable_alsa=yes ;;
+esac
 fi
 
     if test x$enable_audio = xyes -a x$enable_alsa = xyes; then
@@ -21245,8 +21572,9 @@ alsa_found=yes
 if test ${with_alsa_prefix+y}
 then :
   withval=$with_alsa_prefix; alsa_prefix="$withval"
-else $as_nop
-  alsa_prefix=""
+else case e in #(
+  e) alsa_prefix="" ;;
+esac
 fi
 
 
@@ -21255,8 +21583,9 @@ fi
 if test ${with_alsa_inc_prefix+y}
 then :
   withval=$with_alsa_inc_prefix; alsa_inc_prefix="$withval"
-else $as_nop
-  alsa_inc_prefix=""
+else case e in #(
+  e) alsa_inc_prefix="" ;;
+esac
 fi
 
 
@@ -21264,21 +21593,22 @@ fi
 if test ${enable_alsatest+y}
 then :
   enableval=$enable_alsatest; enable_alsatest="$enableval"
-else $as_nop
-  enable_alsatest=yes
+else case e in #(
+  e) enable_alsatest=yes ;;
+esac
 fi
 
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ALSA CFLAGS" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for ALSA CFLAGS" >&5
 printf %s "checking for ALSA CFLAGS... " >&6; }
 if test "$alsa_inc_prefix" != "" ; then
 	ALSA_CFLAGS="$ALSA_CFLAGS -I$alsa_inc_prefix"
 	CFLAGS="$CFLAGS -I$alsa_inc_prefix"
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ALSA_CFLAGS" >&5
-printf "%s\n" "$ALSA_CFLAGS" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ALSA_CFLAGS" >&5
+printf '%s\n' "$ALSA_CFLAGS" >&6; }
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ALSA LDFLAGS" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for ALSA LDFLAGS" >&5
 printf %s "checking for ALSA LDFLAGS... " >&6; }
 if test "$alsa_prefix" != "" ; then
 	ALSA_LIBS="$ALSA_LIBS -L$alsa_prefix"
@@ -21291,11 +21621,11 @@ LIBS=`echo $LIBS | sed 's/-ldl//'`
 LIBS=`echo $LIBS | sed 's/-lpthread//'`
 LIBS=`echo $LIBS | sed 's/  //'`
 LIBS="$ALSA_LIBS $LIBS"
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ALSA_LIBS" >&5
-printf "%s\n" "$ALSA_LIBS" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ALSA_LIBS" >&5
+printf '%s\n' "$ALSA_LIBS" >&6; }
 
 min_alsa_version=1.0.11
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for libasound headers version >= $min_alsa_version" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for libasound headers version >= $min_alsa_version" >&5
 printf %s "checking for libasound headers version >= $min_alsa_version... " >&6; }
 no_alsa=""
     alsa_min_major_version=`echo $min_alsa_version | \
@@ -21358,14 +21688,15 @@ exit(0);
 _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found." >&5
-printf "%s\n" "found." >&6; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: not present." >&5
-printf "%s\n" "not present." >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: found." >&5
+printf '%s\n' "found." >&6; }
+else case e in #(
+  e) { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: not present." >&5
+printf '%s\n' "not present." >&6; }
 
    alsa_found=no
-
+ ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 ac_ext=c
@@ -21376,21 +21707,27 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 
 if test "x$enable_alsatest" = "xyes"; then
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for snd_ctl_open in -lasound" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for snd_ctl_open in -lasound" >&5
 printf %s "checking for snd_ctl_open in -lasound... " >&6; }
 if test ${ac_cv_lib_asound_snd_ctl_open+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lasound  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char snd_ctl_open ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char snd_ctl_open (void);
 int
 main (void)
 {
@@ -21402,25 +21739,28 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_asound_snd_ctl_open=yes
-else $as_nop
-  ac_cv_lib_asound_snd_ctl_open=no
+else case e in #(
+  e) ac_cv_lib_asound_snd_ctl_open=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_asound_snd_ctl_open" >&5
-printf "%s\n" "$ac_cv_lib_asound_snd_ctl_open" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_asound_snd_ctl_open" >&5
+printf '%s\n' "$ac_cv_lib_asound_snd_ctl_open" >&6; }
 if test "x$ac_cv_lib_asound_snd_ctl_open" = xyes
 then :
-  printf "%s\n" "#define HAVE_LIBASOUND 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_LIBASOUND 1" >>confdefs.h
 
   LIBS="-lasound $LIBS"
 
-else $as_nop
-
+else case e in #(
+  e)
 	 alsa_found=no
-
+ ;;
+esac
 fi
 
 fi
@@ -21452,27 +21792,28 @@ fi
 if test ${enable_alsa_shared+y}
 then :
   enableval=$enable_alsa_shared;
-else $as_nop
-  enable_alsa_shared=yes
+else case e in #(
+  e) enable_alsa_shared=yes ;;
+esac
 fi
 
             alsa_lib=`find_lib "libasound.so.*" "$ALSA_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`
 
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_ALSA 1" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_ALSA 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/audio/alsa/*.c"
             EXTRA_CFLAGS="$EXTRA_CFLAGS $ALSA_CFLAGS"
             if test x$have_loadso != xyes && \
                test x$enable_alsa_shared = xyes; then
-                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic ALSA loading" >&5
-printf "%s\n" "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic ALSA loading" >&2;}
+                { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic ALSA loading" >&5
+printf '%s\n' "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic ALSA loading" >&2;}
             fi
             if test x$have_loadso = xyes && \
                test x$enable_alsa_shared = xyes && test x$alsa_lib != x; then
                 echo "-- dynamic libasound -> $alsa_lib"
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_ALSA_DYNAMIC \"$alsa_lib\"" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_ALSA_DYNAMIC \"$alsa_lib\"" >>confdefs.h
 
                 SUMMARY_audio="${SUMMARY_audio} alsa(dynamic)"
             else
@@ -21490,24 +21831,25 @@ CheckJACK()
 if test ${enable_jack+y}
 then :
   enableval=$enable_jack;
-else $as_nop
-  enable_jack=yes
+else case e in #(
+  e) enable_jack=yes ;;
+esac
 fi
 
     if test x$enable_audio = xyes -a x$enable_jack = xyes; then
 
 pkg_failed=no
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for jack >= 0.125" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for jack >= 0.125" >&5
 printf %s "checking for jack >= 0.125... " >&6; }
 
 if test -n "$JACK_CFLAGS"; then
     pkg_cv_JACK_CFLAGS="$JACK_CFLAGS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"jack >= 0.125\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"jack >= 0.125\""; } >&5
   ($PKG_CONFIG --exists --print-errors "jack >= 0.125") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_JACK_CFLAGS=`$PKG_CONFIG --cflags "jack >= 0.125" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
@@ -21521,10 +21863,10 @@ if test -n "$JACK_LIBS"; then
     pkg_cv_JACK_LIBS="$JACK_LIBS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"jack >= 0.125\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"jack >= 0.125\""; } >&5
   ($PKG_CONFIG --exists --print-errors "jack >= 0.125") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_JACK_LIBS=`$PKG_CONFIG --libs "jack >= 0.125" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
@@ -21538,8 +21880,8 @@ fi
 
 
 if test $pkg_failed = yes; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 
 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
         _pkg_short_errors_supported=yes
@@ -21556,14 +21898,14 @@ fi
 
 	audio_jack=no
 elif test $pkg_failed = untried; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 	audio_jack=no
 else
 	JACK_CFLAGS=$pkg_cv_JACK_CFLAGS
 	JACK_LIBS=$pkg_cv_JACK_LIBS
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf '%s\n' "yes" >&6; }
 	audio_jack=yes
 fi
 
@@ -21572,27 +21914,28 @@ fi
 if test ${enable_jack_shared+y}
 then :
   enableval=$enable_jack_shared;
-else $as_nop
-  enable_jack_shared=yes
+else case e in #(
+  e) enable_jack_shared=yes ;;
+esac
 fi
 
             jack_lib=`find_lib "libjack.so.*" "$JACK_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`
 
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_JACK 1" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_JACK 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/audio/jack/*.c"
             EXTRA_CFLAGS="$EXTRA_CFLAGS $JACK_CFLAGS"
             if test x$have_loadso != xyes && \
                test x$enable_jack_shared = xyes; then
-                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic JACK audio loading" >&5
-printf "%s\n" "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic JACK audio loading" >&2;}
+                { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic JACK audio loading" >&5
+printf '%s\n' "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic JACK audio loading" >&2;}
             fi
             if test x$have_loadso = xyes && \
                test x$enable_jack_shared = xyes && test x$jack_lib != x; then
                 echo "-- dynamic libjack -> $jack_lib"
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_JACK_DYNAMIC \"$jack_lib\"" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_JACK_DYNAMIC \"$jack_lib\"" >>confdefs.h
 
                 SUMMARY_audio="${SUMMARY_audio} jack(dynamic)"
 
@@ -21618,24 +21961,25 @@ CheckESD()
 if test ${enable_esd+y}
 then :
   enableval=$enable_esd;
-else $as_nop
-  enable_esd=yes
+else case e in #(
+  e) enable_esd=yes ;;
+esac
 fi
 
     if test x$enable_audio = xyes -a x$enable_esd = xyes; then
 
 pkg_failed=no
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for esound >= 0.2.8" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for esound >= 0.2.8" >&5
 printf %s "checking for esound >= 0.2.8... " >&6; }
 
 if test -n "$ESD_CFLAGS"; then
     pkg_cv_ESD_CFLAGS="$ESD_CFLAGS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"esound >= 0.2.8\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"esound >= 0.2.8\""; } >&5
   ($PKG_CONFIG --exists --print-errors "esound >= 0.2.8") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_ESD_CFLAGS=`$PKG_CONFIG --cflags "esound >= 0.2.8" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
@@ -21649,10 +21993,10 @@ if test -n "$ESD_LIBS"; then
     pkg_cv_ESD_LIBS="$ESD_LIBS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"esound >= 0.2.8\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"esound >= 0.2.8\""; } >&5
   ($PKG_CONFIG --exists --print-errors "esound >= 0.2.8") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_ESD_LIBS=`$PKG_CONFIG --libs "esound >= 0.2.8" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
@@ -21666,8 +22010,8 @@ fi
 
 
 if test $pkg_failed = yes; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 
 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
         _pkg_short_errors_supported=yes
@@ -21684,14 +22028,14 @@ fi
 
 	have_esd=no
 elif test $pkg_failed = untried; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 	have_esd=no
 else
 	ESD_CFLAGS=$pkg_cv_ESD_CFLAGS
 	ESD_LIBS=$pkg_cv_ESD_LIBS
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf '%s\n' "yes" >&6; }
 	have_esd=yes
 fi
         if test x$have_esd = xno; then
@@ -21700,8 +22044,9 @@ fi
 if test ${with_esd_prefix+y}
 then :
   withval=$with_esd_prefix; esd_prefix="$withval"
-else $as_nop
-  esd_prefix=""
+else case e in #(
+  e) esd_prefix="" ;;
+esac
 fi
 
 
@@ -21709,16 +22054,18 @@ fi
 if test ${with_esd_exec_prefix+y}
 then :
   withval=$with_esd_exec_prefix; esd_exec_prefix="$withval"
-else $as_nop
-  esd_exec_prefix=""
+else case e in #(
+  e) esd_exec_prefix="" ;;
+esac
 fi
 
 # Check whether --enable-esdtest was given.
 if test ${enable_esdtest+y}
 then :
   enableval=$enable_esdtest;
-else $as_nop
-  enable_esdtest=yes
+else case e in #(
+  e) enable_esdtest=yes ;;
+esac
 fi
 
 
@@ -21737,13 +22084,13 @@ fi
 
   # Extract the first word of "esd-config", so it can be a program name with args.
 set dummy esd-config; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_ESD_CONFIG+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $ESD_CONFIG in
+else case e in #(
+  e) case $ESD_CONFIG in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_ESD_CONFIG="$ESD_CONFIG" # Let the user override the test with a path.
   ;;
@@ -21760,7 +22107,7 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_path_ESD_CONFIG="$as_dir$ac_word$ac_exec_ext"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -21769,20 +22116,21 @@ IFS=$as_save_IFS
 
   test -z "$ac_cv_path_ESD_CONFIG" && ac_cv_path_ESD_CONFIG="no"
   ;;
+esac ;;
 esac
 fi
 ESD_CONFIG=$ac_cv_path_ESD_CONFIG
 if test -n "$ESD_CONFIG"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ESD_CONFIG" >&5
-printf "%s\n" "$ESD_CONFIG" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ESD_CONFIG" >&5
+printf '%s\n' "$ESD_CONFIG" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
   min_esd_version=0.2.8
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ESD - version >= $min_esd_version" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for ESD - version >= $min_esd_version" >&5
 printf %s "checking for ESD - version >= $min_esd_version... " >&6; }
   no_esd=""
   if test "$ESD_CONFIG" = "no" ; then
@@ -21812,8 +22160,8 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
       if test "$cross_compiling" = yes
 then :
   echo $ac_n "cross compiling; assumed OK... $ac_c"
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <stdio.h>
@@ -21854,11 +22202,13 @@ _ACEOF
 if ac_fn_c_try_run "$LINENO"
 then :
 
-else $as_nop
-  no_esd=yes
+else case e in #(
+  e) no_esd=yes ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 
        CFLAGS="$ac_save_CFLAGS"
@@ -21872,12 +22222,12 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
      fi
   fi
   if test "x$no_esd" = x ; then
-     { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+     { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf '%s\n' "yes" >&6; }
      have_esd=yes
   else
-     { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+     { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
      if test "$ESD_CONFIG" = "no" ; then
       :
      else
@@ -21918,11 +22268,12 @@ then :
 	  echo "***"
           echo "*** If you have an old version installed, it is best to remove it, although"
           echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"
-else $as_nop
-   echo "*** The test program failed to compile or link. See the file config.log for the"
+else case e in #(
+  e)  echo "*** The test program failed to compile or link. See the file config.log for the"
           echo "*** exact error that occured. This usually means ESD was incorrectly installed"
           echo "*** or that you have moved ESD since it was installed. In the latter case, you"
-          echo "*** may want to edit the esd-config script: $ESD_CONFIG"
+          echo "*** may want to edit the esd-config script: $ESD_CONFIG"  ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
@@ -21950,27 +22301,28 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 if test ${enable_esd_shared+y}
 then :
   enableval=$enable_esd_shared;
-else $as_nop
-  enable_esd_shared=yes
+else case e in #(
+  e) enable_esd_shared=yes ;;
+esac
 fi
 
             esd_lib=`find_lib "libesd.so.*" "$ESD_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`
 
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_ESD 1" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_ESD 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/audio/esd/*.c"
             EXTRA_CFLAGS="$EXTRA_CFLAGS $ESD_CFLAGS"
             if test x$have_loadso != xyes && \
                test x$enable_esd_shared = xyes; then
-                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic ESD loading" >&5
-printf "%s\n" "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic ESD loading" >&2;}
+                { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic ESD loading" >&5
+printf '%s\n' "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic ESD loading" >&2;}
             fi
             if test x$have_loadso = xyes && \
                test x$enable_esd_shared = xyes && test x$esd_lib != x; then
                 echo "-- dynamic libesd -> $esd_lib"
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_ESD_DYNAMIC \"$esd_lib\"" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_ESD_DYNAMIC \"$esd_lib\"" >>confdefs.h
 
                 SUMMARY_audio="${SUMMARY_audio} esd(dynamic)"
             else
@@ -21988,24 +22340,25 @@ CheckPipewire()
 if test ${enable_pipewire+y}
 then :
   enableval=$enable_pipewire;
-else $as_nop
-  enable_pipewire=yes
+else case e in #(
+  e) enable_pipewire=yes ;;
+esac
 fi
 
     if test x$enable_audio = xyes -a x$enable_pipewire = xyes; then
 
 pkg_failed=no
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for libpipewire-0.3 >= 0.3.20" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for libpipewire-0.3 >= 0.3.20" >&5
 printf %s "checking for libpipewire-0.3 >= 0.3.20... " >&6; }
 
 if test -n "$PIPEWIRE_CFLAGS"; then
     pkg_cv_PIPEWIRE_CFLAGS="$PIPEWIRE_CFLAGS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libpipewire-0.3 >= 0.3.20\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libpipewire-0.3 >= 0.3.20\""; } >&5
   ($PKG_CONFIG --exists --print-errors "libpipewire-0.3 >= 0.3.20") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_PIPEWIRE_CFLAGS=`$PKG_CONFIG --cflags "libpipewire-0.3 >= 0.3.20" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
@@ -22019,10 +22372,10 @@ if test -n "$PIPEWIRE_LIBS"; then
     pkg_cv_PIPEWIRE_LIBS="$PIPEWIRE_LIBS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libpipewire-0.3 >= 0.3.20\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libpipewire-0.3 >= 0.3.20\""; } >&5
   ($PKG_CONFIG --exists --print-errors "libpipewire-0.3 >= 0.3.20") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_PIPEWIRE_LIBS=`$PKG_CONFIG --libs "libpipewire-0.3 >= 0.3.20" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
@@ -22036,8 +22389,8 @@ fi
 
 
 if test $pkg_failed = yes; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 
 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
         _pkg_short_errors_supported=yes
@@ -22054,14 +22407,14 @@ fi
 
 	audio_pipewire=no
 elif test $pkg_failed = untried; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 	audio_pipewire=no
 else
 	PIPEWIRE_CFLAGS=$pkg_cv_PIPEWIRE_CFLAGS
 	PIPEWIRE_LIBS=$pkg_cv_PIPEWIRE_LIBS
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf '%s\n' "yes" >&6; }
 	audio_pipewire=yes
 fi
 
@@ -22070,27 +22423,28 @@ fi
 if test ${enable_pipewire_shared+y}
 then :
   enableval=$enable_pipewire_shared;
-else $as_nop
-  enable_pipewire_shared=yes
+else case e in #(
+  e) enable_pipewire_shared=yes ;;
+esac
 fi
 
             pipewire_lib=`find_lib "libpipewire-0.3.so.*" "$PIPEWIRE_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`
 
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_PIPEWIRE 1" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_PIPEWIRE 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/audio/pipewire/*.c"
             EXTRA_CFLAGS="$EXTRA_CFLAGS $PIPEWIRE_CFLAGS"
             if test x$have_loadso != xyes && \
                test x$enable_pipewire_shared = xyes; then
-                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic Pipewire loading" >&5
-printf "%s\n" "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic Pipewire loading" >&2;}
+                { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic Pipewire loading" >&5
+printf '%s\n' "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic Pipewire loading" >&2;}
             fi
             if test x$have_loadso = xyes && \
                test x$enable_pipewire_shared = xyes && test x$pipewire_lib != x; then
                 echo "-- dynamic libpipewire-0.3 -> $pipewire_lib"
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_PIPEWIRE_DYNAMIC \"$pipewire_lib\"" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_PIPEWIRE_DYNAMIC \"$pipewire_lib\"" >>confdefs.h
 
                 SUMMARY_audio="${SUMMARY_audio} pipewire(dynamic)"
             else
@@ -22108,24 +22462,25 @@ CheckPulseAudio()
 if test ${enable_pulseaudio+y}
 then :
   enableval=$enable_pulseaudio;
-else $as_nop
-  enable_pulseaudio=yes
+else case e in #(
+  e) enable_pulseaudio=yes ;;
+esac
 fi
 
     if test x$enable_audio = xyes -a x$enable_pulseaudio = xyes; then
 
 pkg_failed=no
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for libpulse >= 0.9.15" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for libpulse >= 0.9.15" >&5
 printf %s "checking for libpulse >= 0.9.15... " >&6; }
 
 if test -n "$PULSEAUDIO_CFLAGS"; then
     pkg_cv_PULSEAUDIO_CFLAGS="$PULSEAUDIO_CFLAGS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libpulse >= 0.9.15\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libpulse >= 0.9.15\""; } >&5
   ($PKG_CONFIG --exists --print-errors "libpulse >= 0.9.15") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_PULSEAUDIO_CFLAGS=`$PKG_CONFIG --cflags "libpulse >= 0.9.15" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
@@ -22139,10 +22494,10 @@ if test -n "$PULSEAUDIO_LIBS"; then
     pkg_cv_PULSEAUDIO_LIBS="$PULSEAUDIO_LIBS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libpulse >= 0.9.15\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libpulse >= 0.9.15\""; } >&5
   ($PKG_CONFIG --exists --print-errors "libpulse >= 0.9.15") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_PULSEAUDIO_LIBS=`$PKG_CONFIG --libs "libpulse >= 0.9.15" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
@@ -22156,8 +22511,8 @@ fi
 
 
 if test $pkg_failed = yes; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 
 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
         _pkg_short_errors_supported=yes
@@ -22174,14 +22529,14 @@ fi
 
 	audio_pulseaudio=no
 elif test $pkg_failed = untried; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 	audio_pulseaudio=no
 else
 	PULSEAUDIO_CFLAGS=$pkg_cv_PULSEAUDIO_CFLAGS
 	PULSEAUDIO_LIBS=$pkg_cv_PULSEAUDIO_LIBS
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf '%s\n' "yes" >&6; }
 	audio_pulseaudio=yes
 fi
 
@@ -22190,27 +22545,28 @@ fi
 if test ${enable_pulseaudio_shared+y}
 then :
   enableval=$enable_pulseaudio_shared;
-else $as_nop
-  enable_pulseaudio_shared=yes
+else case e in #(
+  e) enable_pulseaudio_shared=yes ;;
+esac
 fi
 
             pulseaudio_lib=`find_lib "libpulse.so.*" "$PULSEAUDIO_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`
 
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_PULSEAUDIO 1" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_PULSEAUDIO 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/audio/pulseaudio/*.c"
             EXTRA_CFLAGS="$EXTRA_CFLAGS $PULSEAUDIO_CFLAGS"
             if test x$have_loadso != xyes && \
                test x$enable_pulseaudio_shared = xyes; then
-                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic PulseAudio loading" >&5
-printf "%s\n" "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic PulseAudio loading" >&2;}
+                { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic PulseAudio loading" >&5
+printf '%s\n' "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic PulseAudio loading" >&2;}
             fi
             if test x$have_loadso = xyes && \
                test x$enable_pulseaudio_shared = xyes && test x$pulseaudio_lib != x; then
                 echo "-- dynamic libpulse -> $pulseaudio_lib"
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_PULSEAUDIO_DYNAMIC \"$pulseaudio_lib\"" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_PULSEAUDIO_DYNAMIC \"$pulseaudio_lib\"" >>confdefs.h
 
                 SUMMARY_audio="${SUMMARY_audio} pulse(dynamic)"
 
@@ -22236,20 +22592,21 @@ CheckARTSC()
 if test ${enable_arts+y}
 then :
   enableval=$enable_arts;
-else $as_nop
-  enable_arts=yes
+else case e in #(
+  e) enable_arts=yes ;;
+esac
 fi
 
     if test x$enable_audio = xyes -a x$enable_arts = xyes; then
         # Extract the first word of "artsc-config", so it can be a program name with args.
 set dummy artsc-config; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_ARTSCONFIG+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $ARTSCONFIG in
+else case e in #(
+  e) case $ARTSCONFIG in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_ARTSCONFIG="$ARTSCONFIG" # Let the user override the test with a path.
   ;;
@@ -22266,7 +22623,7 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_path_ARTSCONFIG="$as_dir$ac_word$ac_exec_ext"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -22274,15 +22631,16 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 ARTSCONFIG=$ac_cv_path_ARTSCONFIG
 if test -n "$ARTSCONFIG"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ARTSCONFIG" >&5
-printf "%s\n" "$ARTSCONFIG" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ARTSCONFIG" >&5
+printf '%s\n' "$ARTSCONFIG" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -22291,7 +22649,7 @@ fi
         else
             ARTS_CFLAGS=`$ARTSCONFIG --cflags`
             ARTS_LIBS=`$ARTSCONFIG --libs`
-            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for aRts development environment" >&5
+            { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for aRts development environment" >&5
 printf %s "checking for aRts development environment... " >&6; }
             audio_arts=no
             save_CFLAGS="$CFLAGS"
@@ -22317,34 +22675,35 @@ then :
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
             CFLAGS="$save_CFLAGS"
-            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $audio_arts" >&5
-printf "%s\n" "$audio_arts" >&6; }
+            { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $audio_arts" >&5
+printf '%s\n' "$audio_arts" >&6; }
             if test x$audio_arts = xyes; then
                 # Check whether --enable-arts-shared was given.
 if test ${enable_arts_shared+y}
 then :
   enableval=$enable_arts_shared;
-else $as_nop
-  enable_arts_shared=yes
+else case e in #(
+  e) enable_arts_shared=yes ;;
+esac
 fi
 
                 arts_lib=`find_lib "libartsc.so.*" "$ARTS_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`
 
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_ARTS 1" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_ARTS 1" >>confdefs.h
 
                 SOURCES="$SOURCES $srcdir/src/audio/arts/*.c"
                 EXTRA_CFLAGS="$EXTRA_CFLAGS $ARTS_CFLAGS"
                 if test x$have_loadso != xyes && \
                    test x$enable_arts_shared = xyes; then
-                    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic ARTS loading" >&5
-printf "%s\n" "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic ARTS loading" >&2;}
+                    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic ARTS loading" >&5
+printf '%s\n' "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic ARTS loading" >&2;}
                 fi
                 if test x$have_loadso = xyes && \
                    test x$enable_arts_shared = xyes && test x$arts_lib != x; then
                     echo "-- dynamic libartsc -> $arts_lib"
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_ARTS_DYNAMIC \"$arts_lib\"" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_ARTS_DYNAMIC \"$arts_lib\"" >>confdefs.h
 
                     SUMMARY_audio="${SUMMARY_audio} arts(dynamic)"
                 else
@@ -22363,8 +22722,9 @@ CheckNAS()
 if test ${enable_nas+y}
 then :
   enableval=$enable_nas;
-else $as_nop
-  enable_nas=yes
+else case e in #(
+  e) enable_nas=yes ;;
+esac
 fi
 
     if test x$enable_audio = xyes -a x$enable_nas = xyes; then
@@ -22374,21 +22734,27 @@ then :
   have_nas_hdr=yes
 fi
 
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for AuOpenServer in -laudio" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for AuOpenServer in -laudio" >&5
 printf %s "checking for AuOpenServer in -laudio... " >&6; }
 if test ${ac_cv_lib_audio_AuOpenServer+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-laudio  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char AuOpenServer ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char AuOpenServer (void);
 int
 main (void)
 {
@@ -22400,22 +22766,24 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_audio_AuOpenServer=yes
-else $as_nop
-  ac_cv_lib_audio_AuOpenServer=no
+else case e in #(
+  e) ac_cv_lib_audio_AuOpenServer=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_audio_AuOpenServer" >&5
-printf "%s\n" "$ac_cv_lib_audio_AuOpenServer" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_audio_AuOpenServer" >&5
+printf '%s\n' "$ac_cv_lib_audio_AuOpenServer" >&6; }
 if test "x$ac_cv_lib_audio_AuOpenServer" = xyes
 then :
   have_nas_lib=yes
 fi
 
 
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for NAS audio support" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for NAS audio support" >&5
 printf %s "checking for NAS audio support... " >&6; }
         have_nas=no
 
@@ -22429,30 +22797,31 @@ printf %s "checking for NAS audio support... " >&6; }
             NAS_LIBS="-L/usr/X11R6/lib -laudio -lXt"
         fi
 
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_nas" >&5
-printf "%s\n" "$have_nas" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_nas" >&5
+printf '%s\n' "$have_nas" >&6; }
 
         if test x$have_nas = xyes; then
             # Check whether --enable-nas-shared was given.
 if test ${enable_nas_shared+y}
 then :
   enableval=$enable_nas_shared;
-else $as_nop
-  enable_nas_shared=yes
+else case e in #(
+  e) enable_nas_shared=yes ;;
+esac
 fi
 
             nas_lib=`find_lib "libaudio.so.*" "$NAS_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`
 
             if test x$have_loadso != xyes && \
                test x$enable_nas_shared = xyes; then
-                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic NAS loading" >&5
-printf "%s\n" "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic NAS loading" >&2;}
+                { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic NAS loading" >&5
+printf '%s\n' "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic NAS loading" >&2;}
             fi
             if test x$have_loadso = xyes && \
                test x$enable_nas_shared = xyes && test x$nas_lib != x; then
                 echo "-- dynamic libaudio -> $nas_lib"
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_NAS_DYNAMIC \"$nas_lib\"" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_NAS_DYNAMIC \"$nas_lib\"" >>confdefs.h
 
                 SUMMARY_audio="${SUMMARY_audio} nas(dynamic)"
             else
@@ -22461,7 +22830,7 @@ printf "%s\n" "#define SDL_AUDIO_DRIVER_NAS_DYNAMIC \"$nas_lib\"" >>confdefs.h
             fi
 
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_NAS 1" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_NAS 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/audio/nas/*.c"
             EXTRA_CFLAGS="$EXTRA_CFLAGS $NAS_CFLAGS"
@@ -22476,24 +22845,25 @@ CheckSNDIO()
 if test ${enable_sndio+y}
 then :
   enableval=$enable_sndio;
-else $as_nop
-  enable_sndio=yes
+else case e in #(
+  e) enable_sndio=yes ;;
+esac
 fi
 
     if test x$enable_audio = xyes -a x$enable_sndio = xyes; then
 
 pkg_failed=no
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for sndio" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for sndio" >&5
 printf %s "checking for sndio... " >&6; }
 
 if test -n "$SNDIO_CFLAGS"; then
     pkg_cv_SNDIO_CFLAGS="$SNDIO_CFLAGS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"sndio\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"sndio\""; } >&5
   ($PKG_CONFIG --exists --print-errors "sndio") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_SNDIO_CFLAGS=`$PKG_CONFIG --cflags "sndio" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
@@ -22507,10 +22877,10 @@ if test -n "$SNDIO_LIBS"; then
     pkg_cv_SNDIO_LIBS="$SNDIO_LIBS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"sndio\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"sndio\""; } >&5
   ($PKG_CONFIG --exists --print-errors "sndio") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_SNDIO_LIBS=`$PKG_CONFIG --libs "sndio" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
@@ -22524,8 +22894,8 @@ fi
 
 
 if test $pkg_failed = yes; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 
 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
         _pkg_short_errors_supported=yes
@@ -22542,14 +22912,14 @@ fi
 
 	audio_sndio=no
 elif test $pkg_failed = untried; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 	audio_sndio=no
 else
 	SNDIO_CFLAGS=$pkg_cv_SNDIO_CFLAGS
 	SNDIO_LIBS=$pkg_cv_SNDIO_LIBS
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf '%s\n' "yes" >&6; }
 	audio_sndio=yes
 fi
 
@@ -22558,22 +22928,23 @@ fi
 if test ${enable_sndio_shared+y}
 then :
   enableval=$enable_sndio_shared;
-else $as_nop
-  enable_sndio_shared=yes
+else case e in #(
+  e) enable_sndio_shared=yes ;;
+esac
 fi
 
             sndio_lib=`find_lib "libsndio.so.*" "$SNDIO_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`
 
             if test x$have_loadso != xyes && \
                test x$enable_sndio_shared = xyes; then
-                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic sndio loading" >&5
-printf "%s\n" "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic sndio loading" >&2;}
+                { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic sndio loading" >&5
+printf '%s\n' "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic sndio loading" >&2;}
             fi
             if test x$have_loadso = xyes && \
                test x$enable_sndio_shared = xyes && test x$sndio_lib != x; then
                 echo "-- dynamic libsndio -> $sndio_lib"
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_SNDIO_DYNAMIC \"$sndio_lib\"" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_SNDIO_DYNAMIC \"$sndio_lib\"" >>confdefs.h
 
                 SUMMARY_audio="${SUMMARY_audio} sndio(dynamic)"
             else
@@ -22582,7 +22953,7 @@ printf "%s\n" "#define SDL_AUDIO_DRIVER_SNDIO_DYNAMIC \"$sndio_lib\"" >>confdefs
             fi
 
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_SNDIO 1" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_SNDIO 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/audio/sndio/*.c"
             EXTRA_CFLAGS="$EXTRA_CFLAGS $SNDIO_CFLAGS"
@@ -22597,24 +22968,25 @@ CheckFusionSound()
 if test ${enable_fusionsound+y}
 then :
   enableval=$enable_fusionsound;
-else $as_nop
-  enable_fusionsound=no
+else case e in #(
+  e) enable_fusionsound=no ;;
+esac
 fi
 
     if test x$enable_audio = xyes -a x$enable_fusionsound = xyes; then
 
 pkg_failed=no
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for fusionsound >= 1.1.1" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for fusionsound >= 1.1.1" >&5
 printf %s "checking for fusionsound >= 1.1.1... " >&6; }
 
 if test -n "$FUSIONSOUND_CFLAGS"; then
     pkg_cv_FUSIONSOUND_CFLAGS="$FUSIONSOUND_CFLAGS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"fusionsound >= 1.1.1\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"fusionsound >= 1.1.1\""; } >&5
   ($PKG_CONFIG --exists --print-errors "fusionsound >= 1.1.1") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_FUSIONSOUND_CFLAGS=`$PKG_CONFIG --cflags "fusionsound >= 1.1.1" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
@@ -22628,10 +23000,10 @@ if test -n "$FUSIONSOUND_LIBS"; then
     pkg_cv_FUSIONSOUND_LIBS="$FUSIONSOUND_LIBS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"fusionsound >= 1.1.1\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"fusionsound >= 1.1.1\""; } >&5
   ($PKG_CONFIG --exists --print-errors "fusionsound >= 1.1.1") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_FUSIONSOUND_LIBS=`$PKG_CONFIG --libs "fusionsound >= 1.1.1" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
@@ -22645,8 +23017,8 @@ fi
 
 
 if test $pkg_failed = yes; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 
 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
         _pkg_short_errors_supported=yes
@@ -22663,20 +23035,20 @@ fi
 
 	fusionsound=no
 elif test $pkg_failed = untried; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 	fusionsound=no
 else
 	FUSIONSOUND_CFLAGS=$pkg_cv_FUSIONSOUND_CFLAGS
 	FUSIONSOUND_LIBS=$pkg_cv_FUSIONSOUND_LIBS
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf '%s\n' "yes" >&6; }
 	fusionsound=yes
 fi
 
         if test x$fusionsound = xyes; then
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_FUSIONSOUND 1" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_FUSIONSOUND 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/audio/fusionsound/*.c"
             EXTRA_CFLAGS="$EXTRA_CFLAGS $FUSIONSOUND_CFLAGS"
@@ -22685,22 +23057,23 @@ printf "%s\n" "#define SDL_AUDIO_DRIVER_FUSIONSOUND 1" >>confdefs.h
 if test ${enable_fusionsound_shared+y}
 then :
   enableval=$enable_fusionsound_shared;
-else $as_nop
-  enable_fusionsound_shared=yes
+else case e in #(
+  e) enable_fusionsound_shared=yes ;;
+esac
 fi
 
             fusionsound_shared=no
-            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for FusionSound dynamic loading support" >&5
+            { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for FusionSound dynamic loading support" >&5
 printf %s "checking for FusionSound dynamic loading support... " >&6; }
             if test x$have_loadso != xyes && \
                test x$enable_fusionsound_shared = xyes; then
-                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic fusionsound loading" >&5
-printf "%s\n" "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic fusionsound loading" >&2;}
+                { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic fusionsound loading" >&5
+printf '%s\n' "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic fusionsound loading" >&2;}
             fi
             if test x$have_loadso = xyes && \
                test x$enable_fusionsound_shared = xyes; then
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC \"libfusionsound.so\"" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC \"libfusionsound.so\"" >>confdefs.h
 
                 fusionsound_shared=yes
                 SUMMARY_audio="${SUMMARY_audio} fusionsound(dynamic)"
@@ -22708,8 +23081,8 @@ printf "%s\n" "#define SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC \"libfusionsound.so\
                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $FUSIONSOUND_LIBS"
                 SUMMARY_audio="${SUMMARY_audio} fusionsound"
             fi
-            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $fusionsound_shared" >&5
-printf "%s\n" "$fusionsound_shared" >&6; }
+            { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $fusionsound_shared" >&5
+printf '%s\n' "$fusionsound_shared" >&6; }
 
             have_audio=yes
         fi
@@ -22722,13 +23095,14 @@ CheckDiskAudio()
 if test ${enable_diskaudio+y}
 then :
   enableval=$enable_diskaudio;
-else $as_nop
-  enable_diskaudio=yes
+else case e in #(
+  e) enable_diskaudio=yes ;;
+esac
 fi
 
     if test x$enable_audio = xyes -a x$enable_diskaudio = xyes; then
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_DISK 1" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_DISK 1" >>confdefs.h
 
         SOURCES="$SOURCES $srcdir/src/audio/disk/*.c"
         SUMMARY_audio="${SUMMARY_audio} disk"
@@ -22742,13 +23116,14 @@ CheckDummyAudio()
 if test ${enable_dummyaudio+y}
 then :
   enableval=$enable_dummyaudio;
-else $as_nop
-  enable_dummyaudio=yes
+else case e in #(
+  e) enable_dummyaudio=yes ;;
+esac
 fi
 
     if test x$enable_audio = xyes -a x$enable_dummyaudio = xyes; then
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_DUMMY 1" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_DUMMY 1" >>confdefs.h
 
         SOURCES="$SOURCES $srcdir/src/audio/dummy/*.c"
         SUMMARY_audio="${SUMMARY_audio} dummy"
@@ -22762,8 +23137,9 @@ CheckLibSampleRate()
 if test ${enable_libsamplerate+y}
 then :
   enableval=$enable_libsamplerate;
-else $as_nop
-  enable_libsamplerate=yes
+else case e in #(
+  e) enable_libsamplerate=yes ;;
+esac
 fi
 
     if test x$enable_libsamplerate = xyes; then
@@ -22771,21 +23147,23 @@ fi
 if test "x$ac_cv_header_samplerate_h" = xyes
 then :
   have_samplerate_h_hdr=yes
-else $as_nop
-  have_samplerate_h_hdr=no
+else case e in #(
+  e) have_samplerate_h_hdr=no ;;
+esac
 fi
 
         if test x$have_samplerate_h_hdr = xyes; then
 
-printf "%s\n" "#define HAVE_LIBSAMPLERATE_H 1" >>confdefs.h
+printf '%s\n' "#define HAVE_LIBSAMPLERATE_H 1" >>confdefs.h
 
 
             # Check whether --enable-libsamplerate-shared was given.
 if test ${enable_libsamplerate_shared+y}
 then :
   enableval=$enable_libsamplerate_shared;
-else $as_nop
-  enable_libsamplerate_shared=yes
+else case e in #(
+  e) enable_libsamplerate_shared=yes ;;
+esac
 fi
 
 
@@ -22793,14 +23171,14 @@ fi
 
             if test x$have_loadso != xyes && \
                test x$enable_libsamplerate_shared = xyes; then
-                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic libsamplerate loading" >&5
-printf "%s\n" "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic libsamplerate loading" >&2;}
+                { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic libsamplerate loading" >&5
+printf '%s\n' "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic libsamplerate loading" >&2;}
             fi
             if test x$have_loadso = xyes && \
                test x$enable_libsamplerate_shared = xyes && test x$samplerate_lib != x; then
                 echo "-- dynamic libsamplerate -> $samplerate_lib"
 
-printf "%s\n" "#define SDL_LIBSAMPLERATE_DYNAMIC \"$samplerate_lib\"" >>confdefs.h
+printf '%s\n' "#define SDL_LIBSAMPLERATE_DYNAMIC \"$samplerate_lib\"" >>confdefs.h
 
             else
                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lsamplerate"
@@ -22815,8 +23193,9 @@ CheckARM()
 if test ${enable_arm_simd+y}
 then :
   enableval=$enable_arm_simd; enable_arm_simd=$enableval
-else $as_nop
-  enable_arm_simd=no
+else case e in #(
+  e) enable_arm_simd=no ;;
+esac
 fi
 
     if test x$enable_video = xyes -a x$enable_assembly = xyes -a x$enable_arm_simd = xyes; then
@@ -22824,7 +23203,7 @@ fi
         have_arm_simd=no
         CFLAGS="-x assembler-with-cpp $CFLAGS"
 
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ARM SIMD" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for ARM SIMD" >&5
 printf %s "checking for ARM SIMD... " >&6; }
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -22846,14 +23225,14 @@ then :
   have_arm_simd=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_arm_simd" >&5
-printf "%s\n" "$have_arm_simd" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_arm_simd" >&5
+printf '%s\n' "$have_arm_simd" >&6; }
 
         CFLAGS="$save_CFLAGS"
 
         if test x$have_arm_simd = xyes; then
 
-printf "%s\n" "#define SDL_ARM_SIMD_BLITTERS 1" >>confdefs.h
+printf '%s\n' "#define SDL_ARM_SIMD_BLITTERS 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/video/arm/pixman-arm-simd*.S"
             WARN_ABOUT_ARM_SIMD_ASM_MIT="yes"
@@ -22867,8 +23246,9 @@ CheckNEON()
 if test ${enable_arm_neon+y}
 then :
   enableval=$enable_arm_neon; enable_arm_neon=$enableval
-else $as_nop
-  enable_arm_neon=no
+else case e in #(
+  e) enable_arm_neon=no ;;
+esac
 fi
 
     if test x$enable_video = xyes -a x$enable_assembly = xyes -a x$enable_arm_neon = xyes; then
@@ -22876,7 +23256,7 @@ fi
         have_arm_neon=no
         CFLAGS="-x assembler-with-cpp $CFLAGS"
 
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ARM NEON" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for ARM NEON" >&5
 printf %s "checking for ARM NEON... " >&6; }
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -22900,13 +23280,13 @@ then :
   have_arm_neon=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_arm_neon" >&5
-printf "%s\n" "$have_arm_neon" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_arm_neon" >&5
+printf '%s\n' "$have_arm_neon" >&6; }
         CFLAGS="$save_CFLAGS"
 
         if test x$have_arm_neon = xyes; then
 
-printf "%s\n" "#define SDL_ARM_NEON_BLITTERS 1" >>confdefs.h
+printf '%s\n' "#define SDL_ARM_NEON_BLITTERS 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/video/arm/pixman-arm-neon*.S"
             WARN_ABOUT_ARM_NEON_ASM_MIT="yes"
@@ -22916,7 +23296,7 @@ printf "%s\n" "#define SDL_ARM_NEON_BLITTERS 1" >>confdefs.h
 
 CheckObjectiveCARC()
 {
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for clang -fobjc-arc option" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for clang -fobjc-arc option" >&5
 printf %s "checking for clang -fobjc-arc option... " >&6; }
     have_clang_objc_arc=no
 
@@ -22940,8 +23320,8 @@ then :
   have_clang_objc_arc=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_clang_objc_arc" >&5
-printf "%s\n" "$have_clang_objc_arc" >&6; }
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_clang_objc_arc" >&5
+printf '%s\n' "$have_clang_objc_arc" >&6; }
     CFLAGS="$save_CFLAGS"
 
     if test x$have_clang_objc_arc = xyes; then
@@ -22951,7 +23331,7 @@ printf "%s\n" "$have_clang_objc_arc" >&6; }
 
 CheckGDwarf4()
 {
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GCC -gdwarf-4 option" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for GCC -gdwarf-4 option" >&5
 printf %s "checking for GCC -gdwarf-4 option... " >&6; }
     have_gcc_gdwarf4=no
 
@@ -22975,8 +23355,8 @@ then :
   have_gcc_gdwarf4=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_gcc_gdwarf4" >&5
-printf "%s\n" "$have_gcc_gdwarf4" >&6; }
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_gcc_gdwarf4" >&5
+printf '%s\n' "$have_gcc_gdwarf4" >&6; }
     CFLAGS="$save_CFLAGS"
 
     if test x$have_gcc_gdwarf4 = xyes; then
@@ -22986,7 +23366,7 @@ printf "%s\n" "$have_gcc_gdwarf4" >&6; }
 
 CheckVisibilityHidden()
 {
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GCC -fvisibility=hidden option" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for GCC -fvisibility=hidden option" >&5
 printf %s "checking for GCC -fvisibility=hidden option... " >&6; }
     have_gcc_fvisibility=no
 
@@ -23013,8 +23393,8 @@ then :
   have_gcc_fvisibility=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_gcc_fvisibility" >&5
-printf "%s\n" "$have_gcc_fvisibility" >&6; }
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_gcc_fvisibility" >&5
+printf '%s\n' "$have_gcc_fvisibility" >&6; }
     CFLAGS="$save_CFLAGS"
 
     if test x$have_gcc_fvisibility = xyes; then
@@ -23024,7 +23404,7 @@ printf "%s\n" "$have_gcc_fvisibility" >&6; }
 
 CheckNoStrictAliasing()
 {
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GCC -fno-strict-aliasing option" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for GCC -fno-strict-aliasing option" >&5
 printf %s "checking for GCC -fno-strict-aliasing option... " >&6; }
     have_gcc_no_strict_aliasing=no
 
@@ -23048,8 +23428,8 @@ then :
   have_gcc_no_strict_aliasing=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_gcc_no_strict_aliasing" >&5
-printf "%s\n" "$have_gcc_no_strict_aliasing" >&6; }
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_gcc_no_strict_aliasing" >&5
+printf '%s\n' "$have_gcc_no_strict_aliasing" >&6; }
     CFLAGS="$save_CFLAGS"
 
     if test x$have_gcc_no_strict_aliasing = xyes; then
@@ -23063,12 +23443,13 @@ CheckWerror()
 if test ${enable_werror+y}
 then :
   enableval=$enable_werror; enable_werror=$enableval
-else $as_nop
-  enable_werror=no
+else case e in #(
+  e) enable_werror=no ;;
+esac
 fi
 
     if test x$enable_werror = xyes; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GCC -Werror option" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for GCC -Werror option" >&5
 printf %s "checking for GCC -Werror option... " >&6; }
         have_gcc_werror=no
 
@@ -23092,8 +23473,8 @@ then :
   have_gcc_werror=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_gcc_werror" >&5
-printf "%s\n" "$have_gcc_werror" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_gcc_werror" >&5
+printf '%s\n' "$have_gcc_werror" >&6; }
         CFLAGS="$save_CFLAGS"
 
         if test x$have_gcc_werror = xyes; then
@@ -23104,7 +23485,7 @@ printf "%s\n" "$have_gcc_werror" >&6; }
 
 CheckNoErrorDeprecatedDeclarationsWerror()
 {
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GCC -Wno-error=deprecated-declarations option" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for GCC -Wno-error=deprecated-declarations option" >&5
 printf %s "checking for GCC -Wno-error=deprecated-declarations option... " >&6; }
     have_gcc_no_werror_deprecated_declarations=no
 
@@ -23128,8 +23509,8 @@ then :
   have_gcc_no_werror_deprecated_declarations=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_gcc_werror" >&5
-printf "%s\n" "$have_gcc_werror" >&6; }
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_gcc_werror" >&5
+printf '%s\n' "$have_gcc_werror" >&6; }
     CFLAGS="$save_CFLAGS"
 
     if test x$have_gcc_no_werror_deprecated_declarations = xyes; then
@@ -23139,7 +23520,7 @@ printf "%s\n" "$have_gcc_werror" >&6; }
 
 CheckDeclarationAfterStatement()
 {
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GCC -Wdeclaration-after-statement option" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for GCC -Wdeclaration-after-statement option" >&5
 printf %s "checking for GCC -Wdeclaration-after-statement option... " >&6; }
     have_gcc_declaration_after_statement=no
 
@@ -23163,8 +23544,8 @@ then :
   have_gcc_declaration_after_statement=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_gcc_declaration_after_statement" >&5
-printf "%s\n" "$have_gcc_declaration_after_statement" >&6; }
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_gcc_declaration_after_statement" >&5
+printf '%s\n' "$have_gcc_declaration_after_statement" >&6; }
     CFLAGS="$save_CFLAGS"
 
     if test x$have_gcc_declaration_after_statement = xyes; then
@@ -23174,7 +23555,7 @@ printf "%s\n" "$have_gcc_declaration_after_statement" >&6; }
 
 CheckWarnAll()
 {
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GCC -Wall option" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for GCC -Wall option" >&5
 printf %s "checking for GCC -Wall option... " >&6; }
     have_gcc_Wall=no
 
@@ -23198,14 +23579,14 @@ then :
   have_gcc_Wall=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_gcc_Wall" >&5
-printf "%s\n" "$have_gcc_Wall" >&6; }
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_gcc_Wall" >&5
+printf '%s\n' "$have_gcc_Wall" >&6; }
     CFLAGS="$save_CFLAGS"
 
     if test x$have_gcc_Wall = xyes; then
         EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
 
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for necessary GCC -Wno-multichar option" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for necessary GCC -Wno-multichar option" >&5
 printf %s "checking for necessary GCC -Wno-multichar option... " >&6; }
         need_gcc_Wno_multichar=no
         case "$host" in
@@ -23213,8 +23594,8 @@ printf %s "checking for necessary GCC -Wno-multichar option... " >&6; }
                 need_gcc_Wno_multichar=yes
                 ;;
         esac
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $need_gcc_Wno_multichar" >&5
-printf "%s\n" "$need_gcc_Wno_multichar" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $need_gcc_Wno_multichar" >&5
+printf '%s\n' "$need_gcc_Wno_multichar" >&6; }
         if test x$need_gcc_Wno_multichar = xyes; then
             EXTRA_CFLAGS="$EXTRA_CFLAGS -Wno-multichar"
         fi
@@ -23223,7 +23604,7 @@ printf "%s\n" "$need_gcc_Wno_multichar" >&6; }
 
 CheckUnusedLocalTypedefs()
 {
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GCC -Wunused-local-typedefs option" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for GCC -Wunused-local-typedefs option" >&5
 printf %s "checking for GCC -Wunused-local-typedefs option... " >&6; }
     have_gcc_unused_local_typedefs=no
 
@@ -23247,8 +23628,8 @@ then :
   have_gcc_unused_local_typedefs=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_gcc_unused_local_typedefs" >&5
-printf "%s\n" "$have_gcc_unused_local_typedefs" >&6; }
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_gcc_unused_local_typedefs" >&5
+printf '%s\n' "$have_gcc_unused_local_typedefs" >&6; }
     CFLAGS="$save_CFLAGS"
 
     if test x$have_gcc_unused_local_typedefs = xyes; then
@@ -23262,8 +23643,9 @@ CheckWayland()
 if test ${enable_video_wayland+y}
 then :
   enableval=$enable_video_wayland;
-else $as_nop
-  enable_video_wayland=yes
+else case e in #(
+  e) enable_video_wayland=yes ;;
+esac
 fi
 
 
@@ -23271,13 +23653,14 @@ fi
 if test ${enable_video_wayland_qt_touch+y}
 then :
   enableval=$enable_video_wayland_qt_touch;
-else $as_nop
-  enable_video_wayland_qt_touch=yes
+else case e in #(
+  e) enable_video_wayland_qt_touch=yes ;;
+esac
 fi
 
 
     if test x$enable_video = xyes -a x$enable_video_wayland = xyes; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for Wayland support" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for Wayland support" >&5
 printf %s "checking for Wayland support... " >&6; }
         video_wayland=no
         if  test x$video_opengl_egl = xyes && \
@@ -23289,22 +23672,23 @@ printf %s "checking for Wayland support... " >&6; }
                 if $PKG_CONFIG --exists 'wayland-scanner >= 1.15'
 then :
   WAYLAND_SCANNER_CODE_MODE=private-code
-else $as_nop
-  WAYLAND_SCANNER_CODE_MODE=code
+else case e in #(
+  e) WAYLAND_SCANNER_CODE_MODE=code ;;
+esac
 fi
                 video_wayland=yes
             fi
         fi
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $video_wayland" >&5
-printf "%s\n" "$video_wayland" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $video_wayland" >&5
+printf '%s\n' "$video_wayland" >&6; }
 
         if test x$video_wayland = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_WAYLAND 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_WAYLAND 1" >>confdefs.h
 
             if test x$enable_video_wayland_qt_touch = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH 1" >>confdefs.h
 
             fi
 
@@ -23315,8 +23699,9 @@ printf "%s\n" "#define SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH 1" >>confdefs.h
 if test ${enable_wayland_shared+y}
 then :
   enableval=$enable_wayland_shared;
-else $as_nop
-  enable_wayland_shared=maybe
+else case e in #(
+  e) enable_wayland_shared=maybe ;;
+esac
 fi
 
 
@@ -23338,8 +23723,8 @@ fi
             fi
             if test x$have_loadso != xyes && \
                test x$enable_wayland_shared = xyes; then
-                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic Wayland loading" >&5
-printf "%s\n" "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic Wayland loading" >&2;}
+                { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic Wayland loading" >&5
+printf '%s\n' "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic Wayland loading" >&2;}
                 enable_wayland_shared=no
             fi
             if test x$have_loadso = xyes && \
@@ -23353,16 +23738,16 @@ printf "%s\n" "$as_me: WARNING: You must have SDL_LoadObject() support for dynam
                 echo "-- dynamic libwayland-cursor -> $wayland_cursor_lib"
                 echo "-- dynamic libxkbcommon -> $xkbcommon_lib"
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC \"$wayland_client_lib\"" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC \"$wayland_client_lib\"" >>confdefs.h
 
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_EGL \"$wayland_egl_lib\"" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_EGL \"$wayland_egl_lib\"" >>confdefs.h
 
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_CURSOR \"$wayland_cursor_lib\"" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_CURSOR \"$wayland_cursor_lib\"" >>confdefs.h
 
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_XKBCOMMON \"$xkbcommon_lib\"" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_XKBCOMMON \"$xkbcommon_lib\"" >>confdefs.h
 
                 SUMMARY_video="${SUMMARY_video} wayland(dynamic)"
             else
@@ -23376,24 +23761,25 @@ printf "%s\n" "#define SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_XKBCOMMON \"$xkbcommon_l
 if test ${enable_libdecor+y}
 then :
   enableval=$enable_libdecor;
-else $as_nop
-  enable_libdecor=yes
+else case e in #(
+  e) enable_libdecor=yes ;;
+esac
 fi
 
             if test x$enable_libdecor = xyes; then
 
 pkg_failed=no
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for libdecor-0" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for libdecor-0" >&5
 printf %s "checking for libdecor-0... " >&6; }
 
 if test -n "$DECOR_CFLAGS"; then
     pkg_cv_DECOR_CFLAGS="$DECOR_CFLAGS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libdecor-0\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libdecor-0\""; } >&5
   ($PKG_CONFIG --exists --print-errors "libdecor-0") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_DECOR_CFLAGS=`$PKG_CONFIG --cflags "libdecor-0" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
@@ -23407,10 +23793,10 @@ if test -n "$DECOR_LIBS"; then
     pkg_cv_DECOR_LIBS="$DECOR_LIBS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libdecor-0\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libdecor-0\""; } >&5
   ($PKG_CONFIG --exists --print-errors "libdecor-0") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_DECOR_LIBS=`$PKG_CONFIG --libs "libdecor-0" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
@@ -23424,8 +23810,8 @@ fi
 
 
 if test $pkg_failed = yes; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 
 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
         _pkg_short_errors_supported=yes
@@ -23442,28 +23828,29 @@ fi
 
 	video_libdecor=no
 elif test $pkg_failed = untried; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 	video_libdecor=no
 else
 	DECOR_CFLAGS=$pkg_cv_DECOR_CFLAGS
 	DECOR_LIBS=$pkg_cv_DECOR_LIBS
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf '%s\n' "yes" >&6; }
 	video_libdecor=yes
 fi
                 if test x$video_libdecor = xyes; then
                     EXTRA_CFLAGS="$EXTRA_CFLAGS $DECOR_CFLAGS"
 
-printf "%s\n" "#define HAVE_LIBDECOR_H 1" >>confdefs.h
+printf '%s\n' "#define HAVE_LIBDECOR_H 1" >>confdefs.h
 
 
                     # Check whether --enable-libdecor-shared was given.
 if test ${enable_libdecor_shared+y}
 then :
   enableval=$enable_libdecor_shared;
-else $as_nop
-  enable_libdecor_shared=yes
+else case e in #(
+  e) enable_libdecor_shared=yes ;;
+esac
 fi
 
 
@@ -23474,14 +23861,14 @@ fi
                     fi
                     if test x$have_loadso != xyes && \
                        test x$enable_libdecor_shared = xyes; then
-                        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic libdecor loading" >&5
-printf "%s\n" "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic libdecor loading" >&2;}
+                        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic libdecor loading" >&5
+printf '%s\n' "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic libdecor loading" >&2;}
                     fi
                     if test x$have_loadso = xyes && \
                        test x$enable_libdecor_shared = xyes && test x$decor_lib != x; then
                         echo "-- dynamic libdecor -> $decor_lib"
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_LIBDECOR \"$decor_lib\"" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_LIBDECOR \"$decor_lib\"" >>confdefs.h
 
                     else
                         EXTRA_LDFLAGS="$EXTRA_LDFLAGS $DECOR_LIBS"
@@ -23489,13 +23876,13 @@ printf "%s\n" "#define SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_LIBDECOR \"$decor_lib\""
 
                     saved_cflags=$CFLAGS
                     CFLAGS="$CFLAGS $DECOR_CFLAGS"
-                    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC options needed to detect all undeclared functions" >&5
-printf %s "checking for $CC options needed to detect all undeclared functions... " >&6; }
+                    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $CC options to detect undeclared functions" >&5
+printf %s "checking for $CC options to detect undeclared functions... " >&6; }
 if test ${ac_cv_c_undeclared_builtin_options+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_save_CFLAGS=$CFLAGS
+else case e in #(
+  e) ac_save_CFLAGS=$CFLAGS
    ac_cv_c_undeclared_builtin_options='cannot detect'
    for ac_arg in '' -fno-builtin; do
      CFLAGS="$ac_save_CFLAGS $ac_arg"
@@ -23514,8 +23901,8 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
 
-else $as_nop
-  # This test program should compile successfully.
+else case e in #(
+  e) # This test program should compile successfully.
         # No library function is consistently available on
         # freestanding implementations, so test against a dummy
         # declaration.  Include always-available headers on the
@@ -23543,54 +23930,102 @@ then :
   if test x"$ac_arg" = x
 then :
   ac_cv_c_undeclared_builtin_options='none needed'
-else $as_nop
-  ac_cv_c_undeclared_builtin_options=$ac_arg
+else case e in #(
+  e) ac_cv_c_undeclared_builtin_options=$ac_arg ;;
+esac
 fi
           break
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
     done
     CFLAGS=$ac_save_CFLAGS
-
+   ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_undeclared_builtin_options" >&5
-printf "%s\n" "$ac_cv_c_undeclared_builtin_options" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_undeclared_builtin_options" >&5
+printf '%s\n' "$ac_cv_c_undeclared_builtin_options" >&6; }
   case $ac_cv_c_undeclared_builtin_options in #(
   'cannot detect') :
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf '%s\n' "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "cannot make $CC report undeclared builtins
-See \`config.log' for more details" "$LINENO" 5; } ;; #(
+See 'config.log' for more details" "$LINENO" 5; } ;; #(
   'none needed') :
     ac_c_undeclared_builtin_options='' ;; #(
   *) :
     ac_c_undeclared_builtin_options=$ac_cv_c_undeclared_builtin_options ;;
 esac
 
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $CC options to ignore future-version functions" >&5
+printf %s "checking for $CC options to ignore future-version functions... " >&6; }
+if test ${ac_cv_c_future_darwin_options+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e)       ac_compile_saved="$ac_compile"
+   ac_compile="$ac_compile -Werror=unguarded-availability-new"
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#if ! (defined __APPLE__ && defined __MACH__)
+	   #error "-Werror=unguarded-availability-new not needed here"
+	  #endif
+
+int
+main (void)
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_c_future_darwin_options='-Werror=unguarded-availability-new'
+else case e in #(
+  e) ac_cv_c_future_darwin_options='none needed' ;;
+esac
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+   ac_compile="$ac_compile_saved"
+   ;;
+esac
+fi
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_future_darwin_options" >&5
+printf '%s\n' "$ac_cv_c_future_darwin_options" >&6; }
+ case $ac_cv_c_future_darwin_options in #(
+  'none needed') :
+    ac_c_future_darwin_options='' ;; #(
+  *) :
+    ac_c_future_darwin_options=$ac_cv_c_future_darwin_options ;;
+esac
+
 ac_fn_check_decl "$LINENO" "libdecor_frame_get_min_content_size" "ac_cv_have_decl_libdecor_frame_get_min_content_size" "#include <libdecor.h>
-" "$ac_c_undeclared_builtin_options" "CFLAGS"
+" "$ac_c_undeclared_builtin_options$ac_c_future_darwin_options" "CFLAGS"
 if test "x$ac_cv_have_decl_libdecor_frame_get_min_content_size" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
-printf "%s\n" "#define HAVE_DECL_LIBDECOR_FRAME_GET_MIN_CONTENT_SIZE $ac_have_decl" >>confdefs.h
+printf '%s\n' "#define HAVE_DECL_LIBDECOR_FRAME_GET_MIN_CONTENT_SIZE $ac_have_decl" >>confdefs.h
 if test $ac_have_decl = 1
 then :
   libdecor_get_min_max=yes
 fi
 ac_fn_check_decl "$LINENO" "libdecor_frame_get_max_content_size" "ac_cv_have_decl_libdecor_frame_get_max_content_size" "#include <libdecor.h>
-" "$ac_c_undeclared_builtin_options" "CFLAGS"
+" "$ac_c_undeclared_builtin_options$ac_c_future_darwin_options" "CFLAGS"
 if test "x$ac_cv_have_decl_libdecor_frame_get_max_content_size" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
-printf "%s\n" "#define HAVE_DECL_LIBDECOR_FRAME_GET_MAX_CONTENT_SIZE $ac_have_decl" >>confdefs.h
+printf '%s\n' "#define HAVE_DECL_LIBDECOR_FRAME_GET_MAX_CONTENT_SIZE $ac_have_decl" >>confdefs.h
 if test $ac_have_decl = 1
 then :
   libdecor_get_min_max=yes
@@ -23598,7 +24033,7 @@ fi
 
                     if test x$libdecor_get_min_max = xyes; then
 
-printf "%s\n" "#define SDL_HAVE_LIBDECOR_GET_MIN_MAX 1" >>confdefs.h
+printf '%s\n' "#define SDL_HAVE_LIBDECOR_GET_MIN_MAX 1" >>confdefs.h
 
                     fi
                     CFLAGS="$saved_cflags"
@@ -23629,22 +24064,22 @@ if ac_fn_c_try_compile "$LINENO"
 then :
 
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_NACL 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_NACL 1" >>confdefs.h
 
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_NACL 1" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_NACL 1" >>confdefs.h
 
 
-printf "%s\n" "#define HAVE_POW 1" >>confdefs.h
+printf '%s\n' "#define HAVE_POW 1" >>confdefs.h
 
 
-printf "%s\n" "#define HAVE_OPENGLES2 1" >>confdefs.h
+printf '%s\n' "#define HAVE_OPENGLES2 1" >>confdefs.h
 
 
-printf "%s\n" "#define SDL_VIDEO_OPENGL_ES2 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_OPENGL_ES2 1" >>confdefs.h
 
 
-printf "%s\n" "#define SDL_VIDEO_RENDER_OGL_ES2 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_RENDER_OGL_ES2 1" >>confdefs.h
 
 
         SDL_LIBS="-lppapi_simple -lppapi_gles2 $SDL_LIBS"
@@ -23667,24 +24102,25 @@ CheckRPI()
 if test ${enable_video_rpi+y}
 then :
   enableval=$enable_video_rpi;
-else $as_nop
-  enable_video_rpi=yes
+else case e in #(
+  e) enable_video_rpi=yes ;;
+esac
 fi
 
     if test x$enable_video = xyes -a x$enable_video_rpi = xyes; then
 
 pkg_failed=no
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for bcm_host" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for bcm_host" >&5
 printf %s "checking for bcm_host... " >&6; }
 
 if test -n "$RPI_CFLAGS"; then
     pkg_cv_RPI_CFLAGS="$RPI_CFLAGS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"bcm_host\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"bcm_host\""; } >&5
   ($PKG_CONFIG --exists --print-errors "bcm_host") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_RPI_CFLAGS=`$PKG_CONFIG --cflags "bcm_host" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
@@ -23698,10 +24134,10 @@ if test -n "$RPI_LIBS"; then
     pkg_cv_RPI_LIBS="$RPI_LIBS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"bcm_host\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"bcm_host\""; } >&5
   ($PKG_CONFIG --exists --print-errors "bcm_host") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_RPI_LIBS=`$PKG_CONFIG --libs "bcm_host" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
@@ -23715,8 +24151,8 @@ fi
 
 
 if test $pkg_failed = yes; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 
 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
         _pkg_short_errors_supported=yes
@@ -23733,29 +24169,29 @@ fi
 
 	video_rpi=no
 elif test $pkg_failed = untried; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 	video_rpi=no
 else
 	RPI_CFLAGS=$pkg_cv_RPI_CFLAGS
 	RPI_LIBS=$pkg_cv_RPI_LIBS
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf '%s\n' "yes" >&6; }
 	video_rpi=yes
 fi
 
 pkg_failed=no
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for brcmegl" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for brcmegl" >&5
 printf %s "checking for brcmegl... " >&6; }
 
 if test -n "$RPI_EGL_CFLAGS"; then
     pkg_cv_RPI_EGL_CFLAGS="$RPI_EGL_CFLAGS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"brcmegl\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"brcmegl\""; } >&5
   ($PKG_CONFIG --exists --print-errors "brcmegl") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_RPI_EGL_CFLAGS=`$PKG_CONFIG --cflags "brcmegl" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
@@ -23769,10 +24205,10 @@ if test -n "$RPI_EGL_LIBS"; then
     pkg_cv_RPI_EGL_LIBS="$RPI_EGL_LIBS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"brcmegl\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"brcmegl\""; } >&5
   ($PKG_CONFIG --exists --print-errors "brcmegl") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_RPI_EGL_LIBS=`$PKG_CONFIG --libs "brcmegl" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
@@ -23786,8 +24222,8 @@ fi
 
 
 if test $pkg_failed = yes; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 
 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
         _pkg_short_errors_supported=yes
@@ -23804,14 +24240,14 @@ fi
 
 	video_rpi_egl=no
 elif test $pkg_failed = untried; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 	video_rpi_egl=no
 else
 	RPI_EGL_CFLAGS=$pkg_cv_RPI_EGL_CFLAGS
 	RPI_EGL_LIBS=$pkg_cv_RPI_EGL_LIBS
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf '%s\n' "yes" >&6; }
 	video_rpi_egl=yes
 fi
 
@@ -23839,7 +24275,7 @@ fi
         # Add the Raspberry Pi compiler flags and libraries
         CFLAGS="$CFLAGS $RPI_CFLAGS"; LIBS="$LIBS $RPI_EGL_LIBS $RPI_LIBS"
 
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for Raspberry Pi 0-3" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for Raspberry Pi 0-3" >&5
 printf %s "checking for Raspberry Pi 0-3... " >&6; }
         have_video_rpi=no
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -23863,8 +24299,8 @@ then :
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_video_rpi" >&5
-printf "%s\n" "$have_video_rpi" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_video_rpi" >&5
+printf '%s\n' "$have_video_rpi" >&6; }
 
         # Restore the compiler flags and libraries
         CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
@@ -23876,7 +24312,7 @@ printf "%s\n" "$have_video_rpi" >&6; }
             EXTRA_LDFLAGS="$EXTRA_LDFLAGS $RPI_EGL_LIBS $RPI_LIBS"
             SOURCES="$SOURCES $srcdir/src/video/raspberry/*.c"
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_RPI 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_RPI 1" >>confdefs.h
 
             SUMMARY_video="${SUMMARY_video} rpi"
             have_video=yes
@@ -23890,14 +24326,15 @@ CheckX11()
 if test ${enable_video_x11+y}
 then :
   enableval=$enable_video_x11;
-else $as_nop
-
+else case e in #(
+  e)
     enable_video_x11=yes
     case "$host" in
         *-*-darwin*|*-ios-*)
             enable_video_x11=no
             ;;
-    esac
+    esac ;;
+esac
 fi
 
 
@@ -23914,7 +24351,7 @@ fi
                 fi
                 ;;
         esac
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for X" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for X" >&5
 printf %s "checking for X... " >&6; }
 
 
@@ -23924,7 +24361,7 @@ then :
   withval=$with_x;
 fi
 
-# $have_x is `yes', `no', `disabled', or empty when we do not yet know.
+# $have_x is 'yes', 'no', 'disabled', or empty when we do not yet know.
 if test "x$with_x" = xno; then
   # The user explicitly disabled X.
   have_x=disabled
@@ -23934,8 +24371,8 @@ else
     *,NONE | NONE,*) if test ${ac_cv_have_x+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  # One or both of the vars are not set, and there is no cached value.
+else case e in #(
+  e) # One or both of the vars are not set, and there is no cached value.
 ac_x_includes=no
 ac_x_libraries=no
 # Do we need to do anything special at all?
@@ -23970,11 +24407,11 @@ if mkdir conftest.dir; then
   cd conftest.dir
   cat >Imakefile <<'_ACEOF'
 incroot:
-	@echo incroot='${INCROOT}'
+	@printf '%s\n' incroot='${INCROOT}'
 usrlibdir:
-	@echo usrlibdir='${USRLIBDIR}'
+	@printf '%s\n' usrlibdir='${USRLIBDIR}'
 libdir:
-	@echo libdir='${LIBDIR}'
+	@printf '%s\n' libdir='${LIBDIR}'
 _ACEOF
   if (export CC; ${XMKMF-xmkmf}) >/dev/null 2>/dev/null && test -f Makefile; then
     # GNU make sometimes prints "make[1]: Entering ...", which would confuse us.
@@ -24058,13 +24495,14 @@ if ac_fn_c_try_cpp "$LINENO"
 then :
   # We can compile using X headers with no special include directory.
 ac_x_includes=
-else $as_nop
-  for ac_dir in $ac_x_header_dirs; do
+else case e in #(
+  e) for ac_dir in $ac_x_header_dirs; do
   if test -r "$ac_dir/X11/Xlib.h"; then
     ac_x_includes=$ac_dir
     break
   fi
-done
+done ;;
+esac
 fi
 rm -f conftest.err conftest.i conftest.$ac_ext
 fi # $ac_x_includes = no
@@ -24091,9 +24529,9 @@ then :
   LIBS=$ac_save_LIBS
 # We can link X programs with no special library path.
 ac_x_libraries=
-else $as_nop
-  LIBS=$ac_save_LIBS
-for ac_dir in `printf "%s\n" "$ac_x_includes $ac_x_header_dirs" | sed s/include/lib/g`
+else case e in #(
+  e) LIBS=$ac_save_LIBS
+for ac_dir in `printf '%s\n' "$ac_x_includes $ac_x_header_dirs" | sed s/include/lib/g`
 do
   # Don't even attempt the hair of trying to link an X program!
   for ac_extension in a so sl dylib la dll; do
@@ -24102,7 +24540,8 @@ do
       break 2
     fi
   done
-done
+done ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
@@ -24119,6 +24558,7 @@ case $ac_x_includes,$ac_x_libraries in #(
     ac_cv_have_x="have_x=yes\
 	ac_x_includes='$ac_x_includes'\
 	ac_x_libraries='$ac_x_libraries'" ;;
+esac ;;
 esac
 fi
 ;; #(
@@ -24128,8 +24568,8 @@ fi
 fi # $with_x != no
 
 if test "$have_x" != yes; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_x" >&5
-printf "%s\n" "$have_x" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_x" >&5
+printf '%s\n' "$have_x" >&6; }
   no_x=yes
 else
   # If each of the values was on the command line, it overrides each guess.
@@ -24139,14 +24579,14 @@ else
   ac_cv_have_x="have_x=yes\
 	ac_x_includes='$x_includes'\
 	ac_x_libraries='$x_libraries'"
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: libraries $x_libraries, headers $x_includes" >&5
-printf "%s\n" "libraries $x_libraries, headers $x_includes" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: libraries $x_libraries, headers $x_includes" >&5
+printf '%s\n' "libraries $x_libraries, headers $x_includes" >&6; }
 fi
 
         if test "$no_x" = yes; then
   # Not all programs may use this symbol, but it does not hurt to define it.
 
-printf "%s\n" "#define X_DISPLAY_MISSING 1" >>confdefs.h
+printf '%s\n' "#define X_DISPLAY_MISSING 1" >>confdefs.h
 
   X_CFLAGS= X_PRE_LIBS= X_LIBS= X_EXTRA_LIBS=
 else
@@ -24159,7 +24599,7 @@ else
     X_LIBS="$X_LIBS -L$x_libraries"
     # For Solaris; some versions of Sun CC require a space after -R and
     # others require no space.  Words are not sufficient . . . .
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether -R must be followed by a space" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking whether -R must be followed by a space" >&5
 printf %s "checking whether -R must be followed by a space... " >&6; }
     ac_xsave_LIBS=$LIBS; LIBS="$LIBS -R$x_libraries"
     ac_xsave_c_werror_flag=$ac_c_werror_flag
@@ -24177,11 +24617,11 @@ main (void)
 _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
        X_LIBS="$X_LIBS -R$x_libraries"
-else $as_nop
-  LIBS="$ac_xsave_LIBS -R $x_libraries"
+else case e in #(
+  e) LIBS="$ac_xsave_LIBS -R $x_libraries"
        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -24195,15 +24635,17 @@ main (void)
 _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf '%s\n' "yes" >&6; }
 	  X_LIBS="$X_LIBS -R $x_libraries"
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: neither works" >&5
-printf "%s\n" "neither works" >&6; }
+else case e in #(
+  e) { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: neither works" >&5
+printf '%s\n' "neither works" >&6; } ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
-    conftest$ac_exeext conftest.$ac_ext
+    conftest$ac_exeext conftest.$ac_ext ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
@@ -24227,8 +24669,14 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam \
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char XOpenDisplay ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char XOpenDisplay (void);
 int
 main (void)
 {
@@ -24240,22 +24688,28 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
 
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for dnet_ntoa in -ldnet" >&5
+else case e in #(
+  e) { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for dnet_ntoa in -ldnet" >&5
 printf %s "checking for dnet_ntoa in -ldnet... " >&6; }
 if test ${ac_cv_lib_dnet_dnet_ntoa+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-ldnet  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char dnet_ntoa ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dnet_ntoa (void);
 int
 main (void)
 {
@@ -24267,36 +24721,44 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_dnet_dnet_ntoa=yes
-else $as_nop
-  ac_cv_lib_dnet_dnet_ntoa=no
+else case e in #(
+  e) ac_cv_lib_dnet_dnet_ntoa=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dnet_dnet_ntoa" >&5
-printf "%s\n" "$ac_cv_lib_dnet_dnet_ntoa" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dnet_dnet_ntoa" >&5
+printf '%s\n' "$ac_cv_lib_dnet_dnet_ntoa" >&6; }
 if test "x$ac_cv_lib_dnet_dnet_ntoa" = xyes
 then :
   X_EXTRA_LIBS="$X_EXTRA_LIBS -ldnet"
 fi
 
     if test $ac_cv_lib_dnet_dnet_ntoa = no; then
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for dnet_ntoa in -ldnet_stub" >&5
+      { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for dnet_ntoa in -ldnet_stub" >&5
 printf %s "checking for dnet_ntoa in -ldnet_stub... " >&6; }
 if test ${ac_cv_lib_dnet_stub_dnet_ntoa+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-ldnet_stub  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char dnet_ntoa ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dnet_ntoa (void);
 int
 main (void)
 {
@@ -24308,21 +24770,24 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_dnet_stub_dnet_ntoa=yes
-else $as_nop
-  ac_cv_lib_dnet_stub_dnet_ntoa=no
+else case e in #(
+  e) ac_cv_lib_dnet_stub_dnet_ntoa=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dnet_stub_dnet_ntoa" >&5
-printf "%s\n" "$ac_cv_lib_dnet_stub_dnet_ntoa" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dnet_stub_dnet_ntoa" >&5
+printf '%s\n' "$ac_cv_lib_dnet_stub_dnet_ntoa" >&6; }
 if test "x$ac_cv_lib_dnet_stub_dnet_ntoa" = xyes
 then :
   X_EXTRA_LIBS="$X_EXTRA_LIBS -ldnet_stub"
 fi
 
-    fi
+    fi ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
@@ -24343,21 +24808,27 @@ then :
 fi
 
     if test $ac_cv_func_gethostbyname = no; then
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for gethostbyname in -lnsl" >&5
+      { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for gethostbyname in -lnsl" >&5
 printf %s "checking for gethostbyname in -lnsl... " >&6; }
 if test ${ac_cv_lib_nsl_gethostbyname+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lnsl  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char gethostbyname ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char gethostbyname (void);
 int
 main (void)
 {
@@ -24369,36 +24840,44 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_nsl_gethostbyname=yes
-else $as_nop
-  ac_cv_lib_nsl_gethostbyname=no
+else case e in #(
+  e) ac_cv_lib_nsl_gethostbyname=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_nsl_gethostbyname" >&5
-printf "%s\n" "$ac_cv_lib_nsl_gethostbyname" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_nsl_gethostbyname" >&5
+printf '%s\n' "$ac_cv_lib_nsl_gethostbyname" >&6; }
 if test "x$ac_cv_lib_nsl_gethostbyname" = xyes
 then :
   X_EXTRA_LIBS="$X_EXTRA_LIBS -lnsl"
 fi
 
       if test $ac_cv_lib_nsl_gethostbyname = no; then
-	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for gethostbyname in -lbsd" >&5
+	{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for gethostbyname in -lbsd" >&5
 printf %s "checking for gethostbyname in -lbsd... " >&6; }
 if test ${ac_cv_lib_bsd_gethostbyname+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lbsd  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char gethostbyname ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char gethostbyname (void);
 int
 main (void)
 {
@@ -24410,15 +24889,17 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_bsd_gethostbyname=yes
-else $as_nop
-  ac_cv_lib_bsd_gethostbyname=no
+else case e in #(
+  e) ac_cv_lib_bsd_gethostbyname=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_bsd_gethostbyname" >&5
-printf "%s\n" "$ac_cv_lib_bsd_gethostbyname" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_bsd_gethostbyname" >&5
+printf '%s\n' "$ac_cv_lib_bsd_gethostbyname" >&6; }
 if test "x$ac_cv_lib_bsd_gethostbyname" = xyes
 then :
   X_EXTRA_LIBS="$X_EXTRA_LIBS -lbsd"
@@ -24441,21 +24922,27 @@ then :
 fi
 
     if test $ac_cv_func_connect = no; then
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for connect in -lsocket" >&5
+      { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for connect in -lsocket" >&5
 printf %s "checking for connect in -lsocket... " >&6; }
 if test ${ac_cv_lib_socket_connect+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lsocket $X_EXTRA_LIBS $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char connect ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char connect (void);
 int
 main (void)
 {
@@ -24467,15 +24954,17 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_socket_connect=yes
-else $as_nop
-  ac_cv_lib_socket_connect=no
+else case e in #(
+  e) ac_cv_lib_socket_connect=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_socket_connect" >&5
-printf "%s\n" "$ac_cv_lib_socket_connect" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_socket_connect" >&5
+printf '%s\n' "$ac_cv_lib_socket_connect" >&6; }
 if test "x$ac_cv_lib_socket_connect" = xyes
 then :
   X_EXTRA_LIBS="-lsocket $X_EXTRA_LIBS"
@@ -24491,21 +24980,27 @@ then :
 fi
 
     if test $ac_cv_func_remove = no; then
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for remove in -lposix" >&5
+      { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for remove in -lposix" >&5
 printf %s "checking for remove in -lposix... " >&6; }
 if test ${ac_cv_lib_posix_remove+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lposix  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char remove ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char remove (void);
 int
 main (void)
 {
@@ -24517,15 +25012,17 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_posix_remove=yes
-else $as_nop
-  ac_cv_lib_posix_remove=no
+else case e in #(
+  e) ac_cv_lib_posix_remove=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_posix_remove" >&5
-printf "%s\n" "$ac_cv_lib_posix_remove" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_posix_remove" >&5
+printf '%s\n' "$ac_cv_lib_posix_remove" >&6; }
 if test "x$ac_cv_lib_posix_remove" = xyes
 then :
   X_EXTRA_LIBS="$X_EXTRA_LIBS -lposix"
@@ -24541,21 +25038,27 @@ then :
 fi
 
     if test $ac_cv_func_shmat = no; then
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for shmat in -lipc" >&5
+      { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for shmat in -lipc" >&5
 printf %s "checking for shmat in -lipc... " >&6; }
 if test ${ac_cv_lib_ipc_shmat+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lipc  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char shmat ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char shmat (void);
 int
 main (void)
 {
@@ -24567,15 +25070,17 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_ipc_shmat=yes
-else $as_nop
-  ac_cv_lib_ipc_shmat=no
+else case e in #(
+  e) ac_cv_lib_ipc_shmat=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_ipc_shmat" >&5
-printf "%s\n" "$ac_cv_lib_ipc_shmat" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_ipc_shmat" >&5
+printf '%s\n' "$ac_cv_lib_ipc_shmat" >&6; }
 if test "x$ac_cv_lib_ipc_shmat" = xyes
 then :
   X_EXTRA_LIBS="$X_EXTRA_LIBS -lipc"
@@ -24593,21 +25098,27 @@ fi
   # These have to be linked with before -lX11, unlike the other
   # libraries we check for below, so use a different variable.
   # John Interrante, Karl Berry
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for IceConnectionNumber in -lICE" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for IceConnectionNumber in -lICE" >&5
 printf %s "checking for IceConnectionNumber in -lICE... " >&6; }
 if test ${ac_cv_lib_ICE_IceConnectionNumber+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lICE $X_EXTRA_LIBS $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char IceConnectionNumber ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char IceConnectionNumber (void);
 int
 main (void)
 {
@@ -24619,15 +25130,17 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_ICE_IceConnectionNumber=yes
-else $as_nop
-  ac_cv_lib_ICE_IceConnectionNumber=no
+else case e in #(
+  e) ac_cv_lib_ICE_IceConnectionNumber=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_ICE_IceConnectionNumber" >&5
-printf "%s\n" "$ac_cv_lib_ICE_IceConnectionNumber" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_ICE_IceConnectionNumber" >&5
+printf '%s\n' "$ac_cv_lib_ICE_IceConnectionNumber" >&6; }
 if test "x$ac_cv_lib_ICE_IceConnectionNumber" = xyes
 then :
   X_PRE_LIBS="$X_PRE_LIBS -lSM -lICE"
@@ -24642,8 +25155,9 @@ fi
 if test ${enable_x11_shared+y}
 then :
   enableval=$enable_x11_shared;
-else $as_nop
-  enable_x11_shared=maybe
+else case e in #(
+  e) enable_x11_shared=maybe ;;
+esac
 fi
 
 
@@ -24694,8 +25208,9 @@ fi
 if test "x$ac_cv_header_X11_extensions_Xext_h" = xyes
 then :
   have_xext_h_hdr=yes
-else $as_nop
-  have_xext_h_hdr=no
+else case e in #(
+  e) have_xext_h_hdr=no ;;
+esac
 fi
 
             if test x$have_xext_h_hdr != xyes; then
@@ -24705,7 +25220,7 @@ fi
             fi
 
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_X11 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_X11 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/video/x11/*.c"
             EXTRA_CFLAGS="$EXTRA_CFLAGS $X_CFLAGS"
@@ -24718,8 +25233,8 @@ printf "%s\n" "#define SDL_VIDEO_DRIVER_X11 1" >>confdefs.h
             fi
             if test x$have_loadso != xyes && \
                test x$enable_x11_shared = xyes; then
-                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic X11 loading" >&5
-printf "%s\n" "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic X11 loading" >&2;}
+                { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic X11 loading" >&5
+printf '%s\n' "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic X11 loading" >&2;}
                 enable_x11_shared=no
             fi
             if test x$have_loadso = xyes && \
@@ -24727,10 +25242,10 @@ printf "%s\n" "$as_me: WARNING: You must have SDL_LoadObject() support for dynam
                 echo "-- dynamic libX11 -> $x11_lib"
                 echo "-- dynamic libX11ext -> $x11ext_lib"
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_X11_DYNAMIC \"$x11_lib\"" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_X11_DYNAMIC \"$x11_lib\"" >>confdefs.h
 
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT \"$x11ext_lib\"" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT \"$x11ext_lib\"" >>confdefs.h
 
                 SUMMARY_video="${SUMMARY_video} x11(dynamic)"
             else
@@ -24740,7 +25255,7 @@ printf "%s\n" "#define SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT \"$x11ext_lib\"" >>conf
             fi
             have_video=yes
 
-            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for XGenericEvent" >&5
+            { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for XGenericEvent" >&5
 printf %s "checking for XGenericEvent... " >&6; }
             have_XGenericEvent=no
             cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -24768,29 +25283,35 @@ then :
 
                 have_XGenericEvent=yes
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS 1" >>confdefs.h
 
 
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_XGenericEvent" >&5
-printf "%s\n" "$have_XGenericEvent" >&6; }
+            { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_XGenericEvent" >&5
+printf '%s\n' "$have_XGenericEvent" >&6; }
 
-            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for XkbKeycodeToKeysym in -lX11" >&5
+            { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for XkbKeycodeToKeysym in -lX11" >&5
 printf %s "checking for XkbKeycodeToKeysym in -lX11... " >&6; }
 if test ${ac_cv_lib_X11_XkbKeycodeToKeysym+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lX11  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char XkbKeycodeToKeysym ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char XkbKeycodeToKeysym (void);
 int
 main (void)
 {
@@ -24802,19 +25323,21 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_X11_XkbKeycodeToKeysym=yes
-else $as_nop
-  ac_cv_lib_X11_XkbKeycodeToKeysym=no
+else case e in #(
+  e) ac_cv_lib_X11_XkbKeycodeToKeysym=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_X11_XkbKeycodeToKeysym" >&5
-printf "%s\n" "$ac_cv_lib_X11_XkbKeycodeToKeysym" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_X11_XkbKeycodeToKeysym" >&5
+printf '%s\n' "$ac_cv_lib_X11_XkbKeycodeToKeysym" >&6; }
 if test "x$ac_cv_lib_X11_XkbKeycodeToKeysym" = xyes
 then :
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_X11_HAS_XKBKEYCODETOKEYSYM 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_X11_HAS_XKBKEYCODETOKEYSYM 1" >>confdefs.h
 
 fi
 
@@ -24823,8 +25346,9 @@ fi
 if test ${enable_video_x11_xcursor+y}
 then :
   enableval=$enable_video_x11_xcursor;
-else $as_nop
-  enable_video_x11_xcursor=yes
+else case e in #(
+  e) enable_video_x11_xcursor=yes ;;
+esac
 fi
 
             if test x$enable_video_x11_xcursor = xyes; then
@@ -24835,33 +25359,40 @@ fi
 if test "x$ac_cv_header_X11_Xcursor_Xcursor_h" = xyes
 then :
   have_xcursor_h_hdr=yes
-else $as_nop
-  have_xcursor_h_hdr=no
+else case e in #(
+  e) have_xcursor_h_hdr=no ;;
+esac
 fi
 
                 if test x$have_xcursor_h_hdr = xyes; then
                     if test x$enable_x11_shared = xyes && test x$xcursor_lib != x ; then
                         echo "-- dynamic libXcursor -> $xcursor_lib"
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_X11_DYNAMIC_XCURSOR \"$xcursor_lib\"" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_X11_DYNAMIC_XCURSOR \"$xcursor_lib\"" >>confdefs.h
 
                         definitely_enable_video_x11_xcursor=yes
                     else
-                        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for XcursorImageCreate in -lXcursor" >&5
+                        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for XcursorImageCreate in -lXcursor" >&5
 printf %s "checking for XcursorImageCreate in -lXcursor... " >&6; }
 if test ${ac_cv_lib_Xcursor_XcursorImageCreate+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lXcursor  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char XcursorImageCreate ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char XcursorImageCreate (void);
 int
 main (void)
 {
@@ -24873,15 +25404,17 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_Xcursor_XcursorImageCreate=yes
-else $as_nop
-  ac_cv_lib_Xcursor_XcursorImageCreate=no
+else case e in #(
+  e) ac_cv_lib_Xcursor_XcursorImageCreate=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_Xcursor_XcursorImageCreate" >&5
-printf "%s\n" "$ac_cv_lib_Xcursor_XcursorImageCreate" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_Xcursor_XcursorImageCreate" >&5
+printf '%s\n' "$ac_cv_lib_Xcursor_XcursorImageCreate" >&6; }
 if test "x$ac_cv_lib_Xcursor_XcursorImageCreate" = xyes
 then :
   have_xcursor_lib=yes
@@ -24896,7 +25429,7 @@ fi
             fi
             if test x$definitely_enable_video_x11_xcursor = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_X11_XCURSOR 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_X11_XCURSOR 1" >>confdefs.h
 
                 SUMMARY_video_x11="${SUMMARY_video_x11} xcursor"
             fi
@@ -24904,8 +25437,9 @@ printf "%s\n" "#define SDL_VIDEO_DRIVER_X11_XCURSOR 1" >>confdefs.h
 if test ${enable_video_x11_xdbe+y}
 then :
   enableval=$enable_video_x11_xdbe;
-else $as_nop
-  enable_video_x11_xdbe=yes
+else case e in #(
+  e) enable_video_x11_xdbe=yes ;;
+esac
 fi
 
             if test x$enable_video_x11_xdbe = xyes; then
@@ -24915,13 +25449,14 @@ fi
 if test "x$ac_cv_header_X11_extensions_Xdbe_h" = xyes
 then :
   have_dbe_h_hdr=yes
-else $as_nop
-  have_dbe_h_hdr=no
+else case e in #(
+  e) have_dbe_h_hdr=no ;;
+esac
 fi
 
                 if test x$have_dbe_h_hdr = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_X11_XDBE 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_X11_XDBE 1" >>confdefs.h
 
                     SUMMARY_video_x11="${SUMMARY_video_x11} xdbe"
                 fi
@@ -24930,8 +25465,9 @@ printf "%s\n" "#define SDL_VIDEO_DRIVER_X11_XDBE 1" >>confdefs.h
 if test ${enable_video_x11_xinput+y}
 then :
   enableval=$enable_video_x11_xinput;
-else $as_nop
-  enable_video_x11_xinput=yes
+else case e in #(
+  e) enable_video_x11_xinput=yes ;;
+esac
 fi
 
             if test x$enable_video_x11_xinput = xyes; then
@@ -24942,33 +25478,40 @@ fi
 if test "x$ac_cv_header_X11_extensions_XInput2_h" = xyes
 then :
   have_xinput_h_hdr=yes
-else $as_nop
-  have_xinput_h_hdr=no
+else case e in #(
+  e) have_xinput_h_hdr=no ;;
+esac
 fi
 
                 if test x$have_xinput_h_hdr = xyes; then
                     if test x$enable_x11_shared = xyes && test x$xinput_lib != x ; then
                         echo "-- dynamic libXi -> $xinput_lib"
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_X11_DYNAMIC_XINPUT2 \"$xinput_lib\"" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_X11_DYNAMIC_XINPUT2 \"$xinput_lib\"" >>confdefs.h
 
                         definitely_enable_video_x11_xinput=yes
                     else
-                        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for XOpenDevice in -lXi" >&5
+                        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for XOpenDevice in -lXi" >&5
 printf %s "checking for XOpenDevice in -lXi... " >&6; }
 if test ${ac_cv_lib_Xi_XOpenDevice+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lXi  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char XOpenDevice ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char XOpenDevice (void);
 int
 main (void)
 {
@@ -24980,15 +25523,17 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_Xi_XOpenDevice=yes
-else $as_nop
-  ac_cv_lib_Xi_XOpenDevice=no
+else case e in #(
+  e) ac_cv_lib_Xi_XOpenDevice=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_Xi_XOpenDevice" >&5
-printf "%s\n" "$ac_cv_lib_Xi_XOpenDevice" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_Xi_XOpenDevice" >&5
+printf '%s\n' "$ac_cv_lib_Xi_XOpenDevice" >&6; }
 if test "x$ac_cv_lib_Xi_XOpenDevice" = xyes
 then :
   have_xinput_lib=yes
@@ -25004,9 +25549,9 @@ fi
             if test x$definitely_enable_video_x11_xinput = xyes; then
                 SUMMARY_video_x11="${SUMMARY_video_x11} xinput2"
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_X11_XINPUT2 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_X11_XINPUT2 1" >>confdefs.h
 
-                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for xinput2 multitouch" >&5
+                { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for xinput2 multitouch" >&5
 printf %s "checking for xinput2 multitouch... " >&6; }
                 have_xinput2_multitouch=no
                 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -25032,27 +25577,28 @@ then :
 
                     have_xinput2_multitouch=yes
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_X11_XINPUT2_SUPPORTS_MULTITOUCH 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_X11_XINPUT2_SUPPORTS_MULTITOUCH 1" >>confdefs.h
 
                     SUMMARY_video_x11="${SUMMARY_video_x11} xinput2_multitouch"
 
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_xinput2_multitouch" >&5
-printf "%s\n" "$have_xinput2_multitouch" >&6; }
+                { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_xinput2_multitouch" >&5
+printf '%s\n' "$have_xinput2_multitouch" >&6; }
             fi
             # Check whether --enable-video-x11-xfixes was given.
 if test ${enable_video_x11_xfixes+y}
 then :
   enableval=$enable_video_x11_xfixes;
-else $as_nop
-  enable_video_x11_xfixes=yes
+else case e in #(
+  e) enable_video_x11_xfixes=yes ;;
+esac
 fi
 
             if test x$enable_video_x11_xfixes = xyes; then
                 definitely_enable_video_x11_xfixes=no
                 # check along with XInput2.h because we use Xfixes with XIBarrierReleasePointer
-                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for X11/extensions/Xfixes.h" >&5
+                { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for X11/extensions/Xfixes.h" >&5
 printf %s "checking for X11/extensions/Xfixes.h... " >&6; }
                 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -25072,35 +25618,42 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   have_xfixes_h_hdr=yes
-else $as_nop
-  have_xfixes_h_hdr=no
+else case e in #(
+  e) have_xfixes_h_hdr=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_xfixes_h_hdr" >&5
-printf "%s\n" "$have_xfixes_h_hdr" >&6; }
+                { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_xfixes_h_hdr" >&5
+printf '%s\n' "$have_xfixes_h_hdr" >&6; }
                 if test x$have_xfixes_h_hdr = xyes; then
                     if test x$enable_x11_shared = xyes && test x$xfixes_lib != x ; then
                         echo "-- dynamic libXfixes -> $xfixes_lib"
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_X11_DYNAMIC_XFIXES \"$xfixes_lib\"" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_X11_DYNAMIC_XFIXES \"$xfixes_lib\"" >>confdefs.h
 
                         definitely_enable_video_x11_xfixes=yes
                     else
-                        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for XFixesCreatePointerBarrier in -lXfixes" >&5
+                        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for XFixesCreatePointerBarrier in -lXfixes" >&5
 printf %s "checking for XFixesCreatePointerBarrier in -lXfixes... " >&6; }
 if test ${ac_cv_lib_Xfixes_XFixesCreatePointerBarrier+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lXfixes  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char XFixesCreatePointerBarrier ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char XFixesCreatePointerBarrier (void);
 int
 main (void)
 {
@@ -25112,15 +25665,17 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_Xfixes_XFixesCreatePointerBarrier=yes
-else $as_nop
-  ac_cv_lib_Xfixes_XFixesCreatePointerBarrier=no
+else case e in #(
+  e) ac_cv_lib_Xfixes_XFixesCreatePointerBarrier=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_Xfixes_XFixesCreatePointerBarrier" >&5
-printf "%s\n" "$ac_cv_lib_Xfixes_XFixesCreatePointerBarrier" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_Xfixes_XFixesCreatePointerBarrier" >&5
+printf '%s\n' "$ac_cv_lib_Xfixes_XFixesCreatePointerBarrier" >&6; }
 if test "x$ac_cv_lib_Xfixes_XFixesCreatePointerBarrier" = xyes
 then :
   have_xfixes_lib=yes
@@ -25135,7 +25690,7 @@ fi
             fi
             if test x$definitely_enable_video_x11_xfixes = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_X11_XFIXES 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_X11_XFIXES 1" >>confdefs.h
 
                 SUMMARY_video_x11="${SUMMARY_video_x11} xfixes"
             fi
@@ -25143,8 +25698,9 @@ printf "%s\n" "#define SDL_VIDEO_DRIVER_X11_XFIXES 1" >>confdefs.h
 if test ${enable_video_x11_xrandr+y}
 then :
   enableval=$enable_video_x11_xrandr;
-else $as_nop
-  enable_video_x11_xrandr=yes
+else case e in #(
+  e) enable_video_x11_xrandr=yes ;;
+esac
 fi
 
             if test x$enable_video_x11_xrandr = xyes; then
@@ -25175,25 +25731,31 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
                     if test x$enable_x11_shared = xyes && test x$xrandr_lib != x ; then
                         echo "-- dynamic libXrandr -> $xrandr_lib"
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_X11_DYNAMIC_XRANDR \"$xrandr_lib\"" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_X11_DYNAMIC_XRANDR \"$xrandr_lib\"" >>confdefs.h
 
                         definitely_enable_video_x11_xrandr=yes
                     else
-                        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for XRRQueryExtension in -lXrandr" >&5
+                        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for XRRQueryExtension in -lXrandr" >&5
 printf %s "checking for XRRQueryExtension in -lXrandr... " >&6; }
 if test ${ac_cv_lib_Xrandr_XRRQueryExtension+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lXrandr  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char XRRQueryExtension ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char XRRQueryExtension (void);
 int
 main (void)
 {
@@ -25205,15 +25767,17 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_Xrandr_XRRQueryExtension=yes
-else $as_nop
-  ac_cv_lib_Xrandr_XRRQueryExtension=no
+else case e in #(
+  e) ac_cv_lib_Xrandr_XRRQueryExtension=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_Xrandr_XRRQueryExtension" >&5
-printf "%s\n" "$ac_cv_lib_Xrandr_XRRQueryExtension" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_Xrandr_XRRQueryExtension" >&5
+printf '%s\n' "$ac_cv_lib_Xrandr_XRRQueryExtension" >&6; }
 if test "x$ac_cv_lib_Xrandr_XRRQueryExtension" = xyes
 then :
   have_xrandr_lib=yes
@@ -25228,7 +25792,7 @@ fi
             fi
             if test x$definitely_enable_video_x11_xrandr = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_X11_XRANDR 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_X11_XRANDR 1" >>confdefs.h
 
                 SUMMARY_video_x11="${SUMMARY_video_x11} xrandr"
             fi
@@ -25236,8 +25800,9 @@ printf "%s\n" "#define SDL_VIDEO_DRIVER_X11_XRANDR 1" >>confdefs.h
 if test ${enable_video_x11_scrnsaver+y}
 then :
   enableval=$enable_video_x11_scrnsaver;
-else $as_nop
-  enable_video_x11_scrnsaver=yes
+else case e in #(
+  e) enable_video_x11_scrnsaver=yes ;;
+esac
 fi
 
             if test x$enable_video_x11_scrnsaver = xyes; then
@@ -25247,33 +25812,40 @@ fi
 if test "x$ac_cv_header_X11_extensions_scrnsaver_h" = xyes
 then :
   have_scrnsaver_h_hdr=yes
-else $as_nop
-  have_scrnsaver_h_hdr=no
+else case e in #(
+  e) have_scrnsaver_h_hdr=no ;;
+esac
 fi
 
                 if test x$have_scrnsaver_h_hdr = xyes; then
                     if test x$enable_x11_shared = xyes && test x$xss_lib != x ; then
                         echo "-- dynamic libXss -> $xss_lib"
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_X11_DYNAMIC_XSS \"$xss_lib\"" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_X11_DYNAMIC_XSS \"$xss_lib\"" >>confdefs.h
 
                         definitely_enable_video_x11_scrnsaver=yes
                     else
-                        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for XScreenSaverSuspend in -lXss" >&5
+                        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for XScreenSaverSuspend in -lXss" >&5
 printf %s "checking for XScreenSaverSuspend in -lXss... " >&6; }
 if test ${ac_cv_lib_Xss_XScreenSaverSuspend+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lXss  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char XScreenSaverSuspend ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char XScreenSaverSuspend (void);
 int
 main (void)
 {
@@ -25285,15 +25857,17 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_Xss_XScreenSaverSuspend=yes
-else $as_nop
-  ac_cv_lib_Xss_XScreenSaverSuspend=no
+else case e in #(
+  e) ac_cv_lib_Xss_XScreenSaverSuspend=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_Xss_XScreenSaverSuspend" >&5
-printf "%s\n" "$ac_cv_lib_Xss_XScreenSaverSuspend" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_Xss_XScreenSaverSuspend" >&5
+printf '%s\n' "$ac_cv_lib_Xss_XScreenSaverSuspend" >&6; }
 if test "x$ac_cv_lib_Xss_XScreenSaverSuspend" = xyes
 then :
   have_xss_lib=yes
@@ -25308,7 +25882,7 @@ fi
             fi
             if test x$definitely_enable_video_x11_scrnsaver = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_X11_XSCRNSAVER 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_X11_XSCRNSAVER 1" >>confdefs.h
 
                 SUMMARY_video_x11="${SUMMARY_video_x11} xscrnsaver"
             fi
@@ -25316,8 +25890,9 @@ printf "%s\n" "#define SDL_VIDEO_DRIVER_X11_XSCRNSAVER 1" >>confdefs.h
 if test ${enable_video_x11_xshape+y}
 then :
   enableval=$enable_video_x11_xshape;
-else $as_nop
-  enable_video_x11_xshape=yes
+else case e in #(
+  e) enable_video_x11_xshape=yes ;;
+esac
 fi
 
             if test x$enable_video_x11_xshape = xyes; then
@@ -25327,13 +25902,14 @@ fi
 if test "x$ac_cv_header_X11_extensions_shape_h" = xyes
 then :
   have_shape_h_hdr=yes
-else $as_nop
-  have_shape_h_hdr=no
+else case e in #(
+  e) have_shape_h_hdr=no ;;
+esac
 fi
 
                 if test x$have_shape_h_hdr = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_X11_XSHAPE 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_X11_XSHAPE 1" >>confdefs.h
 
                     SUMMARY_video_x11="${SUMMARY_video_x11} xshape"
                 fi
@@ -25352,12 +25928,13 @@ CheckVivanteVideo()
 if test ${enable_video_vivante+y}
 then :
   enableval=$enable_video_vivante;
-else $as_nop
-  enable_video_vivante=yes
+else case e in #(
+  e) enable_video_vivante=yes ;;
+esac
 fi
 
     if test x$enable_video = xyes -a x$enable_video_vivante = xyes; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for Vivante VDK API" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for Vivante VDK API" >&5
 printf %s "checking for Vivante VDK API... " >&6; }
         have_vivante_vdk=no
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -25380,10 +25957,10 @@ then :
   have_vivante_vdk=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_vivante_vdk" >&5
-printf "%s\n" "$have_vivante_vdk" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_vivante_vdk" >&5
+printf '%s\n' "$have_vivante_vdk" >&6; }
 
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for Vivante FB API" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for Vivante FB API" >&5
 printf %s "checking for Vivante FB API... " >&6; }
         have_vivante_egl=no
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -25406,17 +25983,17 @@ then :
   have_vivante_egl=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_vivante_egl" >&5
-printf "%s\n" "$have_vivante_egl" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_vivante_egl" >&5
+printf '%s\n' "$have_vivante_egl" >&6; }
 
         if test x$have_vivante_vdk = xyes -o x$have_vivante_egl = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_VIVANTE 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_VIVANTE 1" >>confdefs.h
 
             EXTRA_CFLAGS="$EXTRA_CFLAGS -DLINUX -DEGL_API_FB"
             if test x$have_vivante_vdk = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_VIVANTE_VDK 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_VIVANTE_VDK 1" >>confdefs.h
 
                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lVDK"
             fi
@@ -25431,7 +26008,7 @@ CheckHaikuVideo()
 {
     if test x$enable_video = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_HAIKU 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_HAIKU 1" >>confdefs.h
 
         SOURCES="$SOURCES $srcdir/src/video/haiku/*.cc"
         have_video=yes
@@ -25445,14 +26022,15 @@ CheckCOCOA()
 if test ${enable_video_cocoa+y}
 then :
   enableval=$enable_video_cocoa;
-else $as_nop
-  enable_video_cocoa=yes
+else case e in #(
+  e) enable_video_cocoa=yes ;;
+esac
 fi
 
     if test x$enable_video = xyes -a x$enable_video_cocoa = xyes; then
         save_CFLAGS="$CFLAGS"
         CFLAGS="$CFLAGS -x objective-c"
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for Cocoa framework" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for Cocoa framework" >&5
 printf %s "checking for Cocoa framework... " >&6; }
         have_cocoa=no
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -25473,12 +26051,12 @@ then :
   have_cocoa=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_cocoa" >&5
-printf "%s\n" "$have_cocoa" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_cocoa" >&5
+printf '%s\n' "$have_cocoa" >&6; }
         CFLAGS="$save_CFLAGS"
         if test x$have_cocoa = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_COCOA 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_COCOA 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/video/cocoa/*.m"
             SUMMARY_video="${SUMMARY_video} cocoa"
@@ -25493,22 +26071,24 @@ CheckMETAL()
 if test ${enable_video_metal+y}
 then :
   enableval=$enable_video_metal;
-else $as_nop
-  enable_video_metal=yes
+else case e in #(
+  e) enable_video_metal=yes ;;
+esac
 fi
 
     # Check whether --enable-render-metal was given.
 if test ${enable_render_metal+y}
 then :
   enableval=$enable_render_metal;
-else $as_nop
-  enable_render_metal=yes
+else case e in #(
+  e) enable_render_metal=yes ;;
+esac
 fi
 
     if test x$enable_video = xyes -a x$enable_video_metal = xyes; then
         save_CFLAGS="$CFLAGS"
         CFLAGS="$CFLAGS -x objective-c"
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for Metal framework" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for Metal framework" >&5
 printf %s "checking for Metal framework... " >&6; }
         have_metal=no
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -25536,15 +26116,15 @@ then :
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
         CFLAGS="$save_CFLAGS"
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_metal" >&5
-printf "%s\n" "$have_metal" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_metal" >&5
+printf '%s\n' "$have_metal" >&6; }
         if test x$have_metal = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_METAL 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_METAL 1" >>confdefs.h
 
             if test x$enable_render = xyes -a x$enable_render_metal = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_RENDER_METAL 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_RENDER_METAL 1" >>confdefs.h
 
                 SOURCES="$SOURCES $srcdir/src/render/metal/*.m"
             fi
@@ -25562,24 +26142,25 @@ CheckDirectFB()
 if test ${enable_video_directfb+y}
 then :
   enableval=$enable_video_directfb;
-else $as_nop
-  enable_video_directfb=no
+else case e in #(
+  e) enable_video_directfb=no ;;
+esac
 fi
 
     if test x$enable_video = xyes -a x$enable_video_directfb = xyes; then
 
 pkg_failed=no
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for directfb >= 1.0.0" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for directfb >= 1.0.0" >&5
 printf %s "checking for directfb >= 1.0.0... " >&6; }
 
 if test -n "$DIRECTFB_CFLAGS"; then
     pkg_cv_DIRECTFB_CFLAGS="$DIRECTFB_CFLAGS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"directfb >= 1.0.0\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"directfb >= 1.0.0\""; } >&5
   ($PKG_CONFIG --exists --print-errors "directfb >= 1.0.0") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_DIRECTFB_CFLAGS=`$PKG_CONFIG --cflags "directfb >= 1.0.0" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
@@ -25593,10 +26174,10 @@ if test -n "$DIRECTFB_LIBS"; then
     pkg_cv_DIRECTFB_LIBS="$DIRECTFB_LIBS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"directfb >= 1.0.0\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"directfb >= 1.0.0\""; } >&5
   ($PKG_CONFIG --exists --print-errors "directfb >= 1.0.0") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_DIRECTFB_LIBS=`$PKG_CONFIG --libs "directfb >= 1.0.0" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
@@ -25610,8 +26191,8 @@ fi
 
 
 if test $pkg_failed = yes; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 
 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
         _pkg_short_errors_supported=yes
@@ -25628,14 +26209,14 @@ fi
 
 	video_directfb=no
 elif test $pkg_failed = untried; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 	video_directfb=no
 else
 	DIRECTFB_CFLAGS=$pkg_cv_DIRECTFB_CFLAGS
 	DIRECTFB_LIBS=$pkg_cv_DIRECTFB_LIBS
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf '%s\n' "yes" >&6; }
 	video_directfb=yes
 fi
 
@@ -25647,8 +26228,9 @@ fi
 if test "x$ac_cv_header_directfb_h" = xyes
 then :
   have_directfb_hdr=yes
-else $as_nop
-  have_directfb_hdr=no
+else case e in #(
+  e) have_directfb_hdr=no ;;
+esac
 fi
 
             CPPFLAGS="$save_CPPFLAGS"
@@ -25660,16 +26242,17 @@ fi
 if test ${enable_directfb_shared+y}
 then :
   enableval=$enable_directfb_shared;
-else $as_nop
-  enable_directfb_shared=yes
+else case e in #(
+  e) enable_directfb_shared=yes ;;
+esac
 fi
 
 
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_DIRECTFB 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_DIRECTFB 1" >>confdefs.h
 
 
-printf "%s\n" "#define SDL_VIDEO_RENDER_DIRECTFB 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_RENDER_DIRECTFB 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/video/directfb/*.c"
             EXTRA_CFLAGS="$EXTRA_CFLAGS $DIRECTFB_CFLAGS"
@@ -25678,15 +26261,15 @@ printf "%s\n" "#define SDL_VIDEO_RENDER_DIRECTFB 1" >>confdefs.h
             directfb_lib=`find_lib "libdirectfb*.so.*" "$DIRECTFB_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`
             if test x$have_loadso != xyes && \
                test x$enable_directfb_shared = xyes; then
-                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic directfb loading" >&5
-printf "%s\n" "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic directfb loading" >&2;}
+                { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic directfb loading" >&5
+printf '%s\n' "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic directfb loading" >&2;}
             fi
             if test x$have_loadso = xyes && \
                test x$enable_directfb_shared = xyes && test x$directfb_lib != x; then
                 directfb_shared=yes
                 echo "-- dynamic libdirectfb -> $directfb_lib"
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC \"$directfb_lib\"" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC \"$directfb_lib\"" >>confdefs.h
 
                 SUMMARY_video="${SUMMARY_video} directfb(dynamic)"
             else
@@ -25705,8 +26288,9 @@ CheckKMSDRM()
 if test ${enable_video_kmsdrm+y}
 then :
   enableval=$enable_video_kmsdrm;
-else $as_nop
-  enable_video_kmsdrm=yes
+else case e in #(
+  e) enable_video_kmsdrm=yes ;;
+esac
 fi
 
 
@@ -25718,17 +26302,17 @@ fi
 
 
 pkg_failed=no
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for libdrm >= 1.4.82" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for libdrm >= 1.4.82" >&5
 printf %s "checking for libdrm >= 1.4.82... " >&6; }
 
 if test -n "$LIBDRM_CFLAGS"; then
     pkg_cv_LIBDRM_CFLAGS="$LIBDRM_CFLAGS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libdrm >= 1.4.82\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libdrm >= 1.4.82\""; } >&5
   ($PKG_CONFIG --exists --print-errors "libdrm >= 1.4.82") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_LIBDRM_CFLAGS=`$PKG_CONFIG --cflags "libdrm >= 1.4.82" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
@@ -25742,10 +26326,10 @@ if test -n "$LIBDRM_LIBS"; then
     pkg_cv_LIBDRM_LIBS="$LIBDRM_LIBS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libdrm >= 1.4.82\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libdrm >= 1.4.82\""; } >&5
   ($PKG_CONFIG --exists --print-errors "libdrm >= 1.4.82") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_LIBDRM_LIBS=`$PKG_CONFIG --libs "libdrm >= 1.4.82" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
@@ -25759,8 +26343,8 @@ fi
 
 
 if test $pkg_failed = yes; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 
 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
         _pkg_short_errors_supported=yes
@@ -25777,29 +26361,29 @@ fi
 
 	libdrm_avail=no
 elif test $pkg_failed = untried; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 	libdrm_avail=no
 else
 	LIBDRM_CFLAGS=$pkg_cv_LIBDRM_CFLAGS
 	LIBDRM_LIBS=$pkg_cv_LIBDRM_LIBS
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf '%s\n' "yes" >&6; }
 	libdrm_avail=yes
 fi
 
 pkg_failed=no
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for gbm >= 11.1.0" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for gbm >= 11.1.0" >&5
 printf %s "checking for gbm >= 11.1.0... " >&6; }
 
 if test -n "$LIBGBM_CFLAGS"; then
     pkg_cv_LIBGBM_CFLAGS="$LIBGBM_CFLAGS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"gbm >= 11.1.0\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"gbm >= 11.1.0\""; } >&5
   ($PKG_CONFIG --exists --print-errors "gbm >= 11.1.0") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_LIBGBM_CFLAGS=`$PKG_CONFIG --cflags "gbm >= 11.1.0" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
@@ -25813,10 +26397,10 @@ if test -n "$LIBGBM_LIBS"; then
     pkg_cv_LIBGBM_LIBS="$LIBGBM_LIBS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"gbm >= 11.1.0\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"gbm >= 11.1.0\""; } >&5
   ($PKG_CONFIG --exists --print-errors "gbm >= 11.1.0") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_LIBGBM_LIBS=`$PKG_CONFIG --libs "gbm >= 11.1.0" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
@@ -25830,8 +26414,8 @@ fi
 
 
 if test $pkg_failed = yes; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 
 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
         _pkg_short_errors_supported=yes
@@ -25848,14 +26432,14 @@ fi
 
 	libgbm_avail=no
 elif test $pkg_failed = untried; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 	libgbm_avail=no
 else
 	LIBGBM_CFLAGS=$pkg_cv_LIBGBM_CFLAGS
 	LIBGBM_LIBS=$pkg_cv_LIBGBM_LIBS
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf '%s\n' "yes" >&6; }
 	libgbm_avail=yes
 fi
 
@@ -25868,46 +26452,47 @@ fi
 if test ${enable_kmsdrm_shared+y}
 then :
   enableval=$enable_kmsdrm_shared;
-else $as_nop
-  enable_kmsdrm_shared=yes
+else case e in #(
+  e) enable_kmsdrm_shared=yes ;;
+esac
 fi
 
 
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_KMSDRM 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_KMSDRM 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/video/kmsdrm/*.c"
             EXTRA_CFLAGS="$EXTRA_CFLAGS $LIBDRM_CFLAGS $LIBGBM_CFLAGS"
 
-            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for kmsdrm dynamic loading support" >&5
+            { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for kmsdrm dynamic loading support" >&5
 printf %s "checking for kmsdrm dynamic loading support... " >&6; }
             kmsdrm_shared=no
             drm_lib=`find_lib "libdrm.so.*" "$LIBDRM_LIBS"`
             gbm_lib=`find_lib "libgbm.so.*" "$LIBGBM_LIBS"`
             if test x$have_loadso != xyes && \
                test x$enable_kmsdrm_shared = xyes; then
-                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic kmsdrm loading" >&5
-printf "%s\n" "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic kmsdrm loading" >&2;}
+                { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic kmsdrm loading" >&5
+printf '%s\n' "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic kmsdrm loading" >&2;}
             fi
             if test x$have_loadso = xyes && \
                test x$enable_kmsdrm_shared = xyes && test x$drm_lib != x && test x$gbm_lib != x; then
                 kmsdrm_shared=yes
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_KMSDRM_DYNAMIC \"$drm_lib\"" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_KMSDRM_DYNAMIC \"$drm_lib\"" >>confdefs.h
 
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_KMSDRM_DYNAMIC_GBM \"$gbm_lib\"" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_KMSDRM_DYNAMIC_GBM \"$gbm_lib\"" >>confdefs.h
 
 
-printf "%s\n" "#define HAVE_KMSDRM_SHARED \"TRUE\"" >>confdefs.h
+printf '%s\n' "#define HAVE_KMSDRM_SHARED \"TRUE\"" >>confdefs.h
 
                 SUMMARY_video="${SUMMARY_video} kmsdrm(dynamic)"
             else
                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $LIBDRM_LIBS $LIBGBM_LIBS"
                 SUMMARY_video="${SUMMARY_video} kmsdrm"
             fi
-            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $kmsdrm_shared" >&5
-printf "%s\n" "$kmsdrm_shared" >&6; }
+            { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $kmsdrm_shared" >&5
+printf '%s\n' "$kmsdrm_shared" >&6; }
             if test x$kmsdrm_shared = xyes; then
                 echo "-- dynamic libdrm -> $drm_lib"
                 echo "-- dynamic libgbm -> $gbm_lib"
@@ -25923,13 +26508,14 @@ CheckDummyVideo()
 if test ${enable_video_dummy+y}
 then :
   enableval=$enable_video_dummy;
-else $as_nop
-  enable_video_dummy=yes
+else case e in #(
+  e) enable_video_dummy=yes ;;
+esac
 fi
 
     if test x$enable_video_dummy = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_DUMMY 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_DUMMY 1" >>confdefs.h
 
         SOURCES="$SOURCES $srcdir/src/video/dummy/*.c"
         have_video=yes
@@ -25943,13 +26529,14 @@ CheckOffscreenVideo()
 if test ${enable_video_offscreen+y}
 then :
   enableval=$enable_video_offscreen;
-else $as_nop
-  enable_video_offscreen=yes
+else case e in #(
+  e) enable_video_offscreen=yes ;;
+esac
 fi
 
     if test x$enable_video_offscreen = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_OFFSCREEN 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_OFFSCREEN 1" >>confdefs.h
 
         SOURCES="$SOURCES $srcdir/src/video/offscreen/*.c"
         have_video=yes
@@ -25961,7 +26548,7 @@ CheckQNXVideo()
 {
     if test x$enable_video = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_QNX 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_QNX 1" >>confdefs.h
 
         SOURCES="$SOURCES $srcdir/src/video/qnx/*.c"
         have_video=yes
@@ -25974,7 +26561,7 @@ CheckQNXAudio()
 {
     if test x$enable_audio = xyes; then
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_QSA 1" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_QSA 1" >>confdefs.h
 
         SOURCES="$SOURCES $srcdir/src/audio/qsa/*.c"
         have_audio=yes
@@ -25987,15 +26574,16 @@ printf "%s\n" "#define SDL_AUDIO_DRIVER_QSA 1" >>confdefs.h
 if test ${enable_video_opengl+y}
 then :
   enableval=$enable_video_opengl;
-else $as_nop
-  enable_video_opengl=yes
+else case e in #(
+  e) enable_video_opengl=yes ;;
+esac
 fi
 
 
 CheckGLX()
 {
     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GLX support" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for GLX support" >&5
 printf %s "checking for GLX support... " >&6; }
         video_opengl_glx=no
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -26016,14 +26604,14 @@ then :
   video_opengl_glx=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $video_opengl_glx" >&5
-printf "%s\n" "$video_opengl_glx" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $video_opengl_glx" >&5
+printf '%s\n' "$video_opengl_glx" >&6; }
         if test x$video_opengl_glx = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_OPENGL 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_OPENGL 1" >>confdefs.h
 
 
-printf "%s\n" "#define SDL_VIDEO_OPENGL_GLX 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_OPENGL_GLX 1" >>confdefs.h
 
         fi
     fi
@@ -26033,31 +26621,34 @@ printf "%s\n" "#define SDL_VIDEO_OPENGL_GLX 1" >>confdefs.h
 if test ${enable_video_opengles+y}
 then :
   enableval=$enable_video_opengles;
-else $as_nop
-  enable_video_opengles=yes
+else case e in #(
+  e) enable_video_opengles=yes ;;
+esac
 fi
 
 # Check whether --enable-video-opengles1 was given.
 if test ${enable_video_opengles1+y}
 then :
   enableval=$enable_video_opengles1;
-else $as_nop
-  enable_video_opengles1=yes
+else case e in #(
+  e) enable_video_opengles1=yes ;;
+esac
 fi
 
 # Check whether --enable-video-opengles2 was given.
 if test ${enable_video_opengles2+y}
 then :
   enableval=$enable_video_opengles2;
-else $as_nop
-  enable_video_opengles2=yes
+else case e in #(
+  e) enable_video_opengles2=yes ;;
+esac
 fi
 
 
 CheckEGL()
 {
     if test x$enable_video = xyes -a x$enable_video_opengl = xyes || test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for EGL support" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for EGL support" >&5
 printf %s "checking for EGL support... " >&6; }
         video_opengl_egl=no
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -26083,11 +26674,11 @@ then :
   video_opengl_egl=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $video_opengl_egl" >&5
-printf "%s\n" "$video_opengl_egl" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $video_opengl_egl" >&5
+printf '%s\n' "$video_opengl_egl" >&6; }
         if test x$video_opengl_egl = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_OPENGL_EGL 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_OPENGL_EGL 1" >>confdefs.h
 
         fi
     fi
@@ -26096,7 +26687,7 @@ printf "%s\n" "#define SDL_VIDEO_OPENGL_EGL 1" >>confdefs.h
 CheckOpenGL()
 {
     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for OpenGL headers" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for OpenGL headers" >&5
 printf %s "checking for OpenGL headers... " >&6; }
         video_opengl=no
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -26118,14 +26709,14 @@ then :
   video_opengl=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $video_opengl" >&5
-printf "%s\n" "$video_opengl" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $video_opengl" >&5
+printf '%s\n' "$video_opengl" >&6; }
         if test x$video_opengl = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_OPENGL 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_OPENGL 1" >>confdefs.h
 
 
-printf "%s\n" "#define SDL_VIDEO_RENDER_OGL 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_RENDER_OGL 1" >>confdefs.h
 
             SUMMARY_video="${SUMMARY_video} opengl"
         fi
@@ -26136,7 +26727,7 @@ CheckOpenGLES()
 {
     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
         if test x$enable_video_opengles1 = xyes; then
-            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for OpenGL ES v1 headers" >&5
+            { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for OpenGL ES v1 headers" >&5
 printf %s "checking for OpenGL ES v1 headers... " >&6; }
             video_opengles_v1=no
             cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -26158,21 +26749,21 @@ then :
   video_opengles_v1=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $video_opengles_v1" >&5
-printf "%s\n" "$video_opengles_v1" >&6; }
+            { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $video_opengles_v1" >&5
+printf '%s\n' "$video_opengles_v1" >&6; }
             if test x$video_opengles_v1 = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_OPENGL_ES 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_OPENGL_ES 1" >>confdefs.h
 
 
-printf "%s\n" "#define SDL_VIDEO_RENDER_OGL_ES 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_RENDER_OGL_ES 1" >>confdefs.h
 
                 SUMMARY_video="${SUMMARY_video} opengl_es1"
             fi
         fi
 
         if test x$enable_video_opengles2 = xyes; then
-            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for OpenGL ES v2 headers" >&5
+            { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for OpenGL ES v2 headers" >&5
 printf %s "checking for OpenGL ES v2 headers... " >&6; }
             video_opengles_v2=no
             cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -26194,14 +26785,14 @@ then :
   video_opengles_v2=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $video_opengles_v2" >&5
-printf "%s\n" "$video_opengles_v2" >&6; }
+            { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $video_opengles_v2" >&5
+printf '%s\n' "$video_opengles_v2" >&6; }
             if test x$video_opengles_v2 = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_OPENGL_ES2 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_OPENGL_ES2 1" >>confdefs.h
 
 
-printf "%s\n" "#define SDL_VIDEO_RENDER_OGL_ES2 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_RENDER_OGL_ES2 1" >>confdefs.h
 
                 SUMMARY_video="${SUMMARY_video} opengl_es2"
             fi
@@ -26213,13 +26804,13 @@ CheckWINDOWSGL()
 {
     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_OPENGL 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_OPENGL 1" >>confdefs.h
 
 
-printf "%s\n" "#define SDL_VIDEO_OPENGL_WGL 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_OPENGL_WGL 1" >>confdefs.h
 
 
-printf "%s\n" "#define SDL_VIDEO_RENDER_OGL 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_RENDER_OGL 1" >>confdefs.h
 
         SUMMARY_video="${SUMMARY_video} opengl"
     fi
@@ -26229,7 +26820,7 @@ CheckWINDOWSGLES()
 {
     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
 
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for EGL support" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for EGL support" >&5
 printf %s "checking for EGL support... " >&6; }
         video_opengl_egl=no
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -26250,19 +26841,19 @@ then :
   video_opengl_egl=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $video_opengl_egl" >&5
-printf "%s\n" "$video_opengl_egl" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $video_opengl_egl" >&5
+printf '%s\n' "$video_opengl_egl" >&6; }
         if test x$video_opengl_egl = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_OPENGL 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_OPENGL 1" >>confdefs.h
 
 
-printf "%s\n" "#define SDL_VIDEO_OPENGL_EGL 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_OPENGL_EGL 1" >>confdefs.h
 
             SUMMARY_video="${SUMMARY_video} opengl_es1"
         fi
 
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for OpenGL ES v2 headers" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for OpenGL ES v2 headers" >&5
 printf %s "checking for OpenGL ES v2 headers... " >&6; }
         video_opengles_v2=no
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -26284,17 +26875,17 @@ then :
   video_opengles_v2=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $video_opengles_v2" >&5
-printf "%s\n" "$video_opengles_v2" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $video_opengles_v2" >&5
+printf '%s\n' "$video_opengles_v2" >&6; }
         if test x$video_opengles_v2 = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_OPENGL 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_OPENGL 1" >>confdefs.h
 
 
-printf "%s\n" "#define SDL_VIDEO_OPENGL_ES2 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_OPENGL_ES2 1" >>confdefs.h
 
 
-printf "%s\n" "#define SDL_VIDEO_RENDER_OGL_ES2 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_RENDER_OGL_ES2 1" >>confdefs.h
 
             SUMMARY_video="${SUMMARY_video} opengl_es2"
         fi
@@ -26305,13 +26896,13 @@ CheckHaikuGL()
 {
     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_OPENGL 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_OPENGL 1" >>confdefs.h
 
 
-printf "%s\n" "#define SDL_VIDEO_OPENGL_HAIKU 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_OPENGL_HAIKU 1" >>confdefs.h
 
 
-printf "%s\n" "#define SDL_VIDEO_RENDER_OGL 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_RENDER_OGL 1" >>confdefs.h
 
         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lGL"
         SUMMARY_video="${SUMMARY_video} opengl"
@@ -26322,13 +26913,13 @@ CheckMacGL()
 {
     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_OPENGL 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_OPENGL 1" >>confdefs.h
 
 
-printf "%s\n" "#define SDL_VIDEO_OPENGL_CGL 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_OPENGL_CGL 1" >>confdefs.h
 
 
-printf "%s\n" "#define SDL_VIDEO_RENDER_OGL 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_RENDER_OGL 1" >>confdefs.h
 
         SUMMARY_video="${SUMMARY_video} opengl"
     fi
@@ -26339,14 +26930,14 @@ CheckMacGLES()
     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
         video_opengl_egl=yes
 
-printf "%s\n" "#define SDL_VIDEO_OPENGL_EGL 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_OPENGL_EGL 1" >>confdefs.h
 
         video_opengles_v2=yes
 
-printf "%s\n" "#define SDL_VIDEO_OPENGL_ES2 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_OPENGL_ES2 1" >>confdefs.h
 
 
-printf "%s\n" "#define SDL_VIDEO_RENDER_OGL_ES2 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_RENDER_OGL_ES2 1" >>confdefs.h
 
         SUMMARY_video="${SUMMARY_video} opengl_es2"
     fi
@@ -26355,7 +26946,7 @@ printf "%s\n" "#define SDL_VIDEO_RENDER_OGL_ES2 1" >>confdefs.h
 CheckEmscriptenGLES()
 {
     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for EGL support" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for EGL support" >&5
 printf %s "checking for EGL support... " >&6; }
         video_opengl_egl=no
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -26376,15 +26967,15 @@ then :
   video_opengl_egl=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $video_opengl_egl" >&5
-printf "%s\n" "$video_opengl_egl" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $video_opengl_egl" >&5
+printf '%s\n' "$video_opengl_egl" >&6; }
         if test x$video_opengl_egl = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_OPENGL_EGL 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_OPENGL_EGL 1" >>confdefs.h
 
         fi
 
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for OpenGL ES v2 headers" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for OpenGL ES v2 headers" >&5
 printf %s "checking for OpenGL ES v2 headers... " >&6; }
         video_opengles_v2=no
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -26406,14 +26997,14 @@ then :
   video_opengles_v2=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $video_opengles_v2" >&5
-printf "%s\n" "$video_opengles_v2" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $video_opengles_v2" >&5
+printf '%s\n' "$video_opengles_v2" >&6; }
         if test x$video_opengles_v2 = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_OPENGL_ES2 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_OPENGL_ES2 1" >>confdefs.h
 
 
-printf "%s\n" "#define SDL_VIDEO_RENDER_OGL_ES2 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_RENDER_OGL_ES2 1" >>confdefs.h
 
             SUMMARY_video="${SUMMARY_video} opengl_es2"
         fi
@@ -26424,8 +27015,9 @@ printf "%s\n" "#define SDL_VIDEO_RENDER_OGL_ES2 1" >>confdefs.h
 if test ${enable_video_vulkan+y}
 then :
   enableval=$enable_video_vulkan;
-else $as_nop
-  enable_video_vulkan=yes
+else case e in #(
+  e) enable_video_vulkan=yes ;;
+esac
 fi
 
 
@@ -26452,8 +27044,9 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
 
-else $as_nop
-  enable_video_vulkan=no
+else case e in #(
+  e) enable_video_vulkan=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
                 ;;
@@ -26485,8 +27078,9 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
 
-else $as_nop
-  enable_video_vulkan=no
+else case e in #(
+  e) enable_video_vulkan=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
                 CFLAGS="$save_CFLAGS"
@@ -26497,18 +27091,18 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
         if test x$enable_video_vulkan = xno; then
             # For reasons I am totally unable to see, I get an undefined macro error if
             # I put this in the AC_TRY_COMPILE.
-            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: Vulkan does not work on this configuration." >&5
-printf "%s\n" "$as_me: WARNING: Vulkan does not work on this configuration." >&2;}
+            { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: Vulkan does not work on this configuration." >&5
+printf '%s\n' "$as_me: WARNING: Vulkan does not work on this configuration." >&2;}
         fi
     fi
     if test x$have_loadso != xyes; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: Vulkan support is available, but disabled because there's no loadso." >&5
-printf "%s\n" "$as_me: WARNING: Vulkan support is available, but disabled because there's no loadso." >&2;}
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: Vulkan support is available, but disabled because there's no loadso." >&5
+printf '%s\n' "$as_me: WARNING: Vulkan support is available, but disabled because there's no loadso." >&2;}
         enable_video_vulkan=no
     fi
     if test x$enable_video_vulkan = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_VULKAN 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_VULKAN 1" >>confdefs.h
 
         SUMMARY_video="${SUMMARY_video} vulkan"
     fi
@@ -26519,12 +27113,12 @@ CheckInputEvents()
         ac_fn_c_check_header_compile "$LINENO" "linux/input.h" "ac_cv_header_linux_input_h" "$ac_includes_default"
 if test "x$ac_cv_header_linux_input_h" = xyes
 then :
-  printf "%s\n" "#define HAVE_LINUX_INPUT_H 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_LINUX_INPUT_H 1" >>confdefs.h
 
 fi
 
 
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for Linux 2.4 unified input interface" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for Linux 2.4 unified input interface" >&5
 printf %s "checking for Linux 2.4 unified input interface... " >&6; }
         use_input_events=no
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -26549,11 +27143,11 @@ then :
   use_input_events=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $use_input_events" >&5
-printf "%s\n" "$use_input_events" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $use_input_events" >&5
+printf '%s\n' "$use_input_events" >&6; }
         if test x$use_input_events = xyes; then
 
-printf "%s\n" "#define SDL_INPUT_LINUXEV 1" >>confdefs.h
+printf '%s\n' "#define SDL_INPUT_LINUXEV 1" >>confdefs.h
 
             SUMMARY_input="${SUMMARY_input} linuxev"
         fi
@@ -26561,7 +27155,7 @@ printf "%s\n" "#define SDL_INPUT_LINUXEV 1" >>confdefs.h
 
 CheckInputKD()
 {
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for Linux kd.h" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for Linux kd.h" >&5
 printf %s "checking for Linux kd.h... " >&6; }
     use_input_kd=no
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -26588,11 +27182,11 @@ then :
   use_input_kd=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $use_input_kd" >&5
-printf "%s\n" "$use_input_kd" >&6; }
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $use_input_kd" >&5
+printf '%s\n' "$use_input_kd" >&6; }
     if test x$use_input_kd = xyes; then
 
-printf "%s\n" "#define SDL_INPUT_LINUXKD 1" >>confdefs.h
+printf '%s\n' "#define SDL_INPUT_LINUXKD 1" >>confdefs.h
 
         SUMMARY_input="${SUMMARY_input} linuxkd"
     fi
@@ -26600,7 +27194,7 @@ printf "%s\n" "#define SDL_INPUT_LINUXKD 1" >>confdefs.h
 
 CheckInputKBIO()
 {
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for FreeBSD kbio.h" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for FreeBSD kbio.h" >&5
 printf %s "checking for FreeBSD kbio.h... " >&6; }
     use_input_kbio=no
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -26625,11 +27219,11 @@ then :
   use_input_kbio=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $use_input_kbio" >&5
-printf "%s\n" "$use_input_kbio" >&6; }
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $use_input_kbio" >&5
+printf '%s\n' "$use_input_kbio" >&6; }
     if test x$use_input_kbio = xyes; then
 
-printf "%s\n" "#define SDL_INPUT_FBSDKBIO 1" >>confdefs.h
+printf '%s\n' "#define SDL_INPUT_FBSDKBIO 1" >>confdefs.h
 
         SUMMARY_input="${SUMMARY_input} fbsdkbio"
     fi
@@ -26637,7 +27231,7 @@ printf "%s\n" "#define SDL_INPUT_FBSDKBIO 1" >>confdefs.h
 
 CheckInputWSCONS()
 {
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for OpenBSD wscons" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for OpenBSD wscons" >&5
 printf %s "checking for OpenBSD wscons... " >&6; }
     use_input_wscons=no
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -26665,11 +27259,11 @@ then :
   use_input_wscons=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $use_input_wscons" >&5
-printf "%s\n" "$use_input_wscons" >&6; }
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $use_input_wscons" >&5
+printf '%s\n' "$use_input_wscons" >&6; }
     if test x$use_input_wscons = xyes; then
 
-printf "%s\n" "#define SDL_INPUT_WSCONS 1" >>confdefs.h
+printf '%s\n' "#define SDL_INPUT_WSCONS 1" >>confdefs.h
 
         SUMMARY_input="${SUMMARY_input} wscons"
     fi
@@ -26681,8 +27275,9 @@ CheckLibUDev()
 if test ${enable_libudev+y}
 then :
   enableval=$enable_libudev;
-else $as_nop
-  enable_libudev=yes
+else case e in #(
+  e) enable_libudev=yes ;;
+esac
 fi
 
     if test x$enable_libudev = xyes; then
@@ -26690,20 +27285,21 @@ fi
 if test "x$ac_cv_header_libudev_h" = xyes
 then :
   have_libudev_h_hdr=yes
-else $as_nop
-  have_libudev_h_hdr=no
+else case e in #(
+  e) have_libudev_h_hdr=no ;;
+esac
 fi
 
         if test x$have_libudev_h_hdr = xyes; then
 
-printf "%s\n" "#define HAVE_LIBUDEV_H 1" >>confdefs.h
+printf '%s\n' "#define HAVE_LIBUDEV_H 1" >>confdefs.h
 
 
             udev_lib=`find_lib "libudev.so.*" "" | sed 's/.*\/\(.*\)/\1/; q'`
             if test x$udev_lib != x; then
                 echo "-- dynamic udev -> $udev_lib"
 
-printf "%s\n" "#define SDL_UDEV_DYNAMIC \"$udev_lib\"" >>confdefs.h
+printf '%s\n' "#define SDL_UDEV_DYNAMIC \"$udev_lib\"" >>confdefs.h
 
             fi
         fi
@@ -26716,24 +27312,25 @@ CheckDBus()
 if test ${enable_dbus+y}
 then :
   enableval=$enable_dbus;
-else $as_nop
-  enable_dbus=yes
+else case e in #(
+  e) enable_dbus=yes ;;
+esac
 fi
 
     if test x$enable_dbus = xyes; then
 
 pkg_failed=no
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for dbus-1" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for dbus-1" >&5
 printf %s "checking for dbus-1... " >&6; }
 
 if test -n "$DBUS_CFLAGS"; then
     pkg_cv_DBUS_CFLAGS="$DBUS_CFLAGS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"dbus-1\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"dbus-1\""; } >&5
   ($PKG_CONFIG --exists --print-errors "dbus-1") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_DBUS_CFLAGS=`$PKG_CONFIG --cflags "dbus-1" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
@@ -26747,10 +27344,10 @@ if test -n "$DBUS_LIBS"; then
     pkg_cv_DBUS_LIBS="$DBUS_LIBS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"dbus-1\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"dbus-1\""; } >&5
   ($PKG_CONFIG --exists --print-errors "dbus-1") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_DBUS_LIBS=`$PKG_CONFIG --libs "dbus-1" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
@@ -26764,8 +27361,8 @@ fi
 
 
 if test $pkg_failed = yes; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 
 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
         _pkg_short_errors_supported=yes
@@ -26782,14 +27379,14 @@ fi
 
 	have_dbus=no
 elif test $pkg_failed = untried; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 	have_dbus=no
 else
 	DBUS_CFLAGS=$pkg_cv_DBUS_CFLAGS
 	DBUS_LIBS=$pkg_cv_DBUS_LIBS
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf '%s\n' "yes" >&6; }
 	have_dbus=yes
 fi
         save_CPPFLAGS="$CPPFLAGS"
@@ -26798,14 +27395,15 @@ fi
 if test "x$ac_cv_header_dbus_dbus_h" = xyes
 then :
   have_dbus_dbus_h_hdr=yes
-else $as_nop
-  have_dbus_dbus_h_hdr=no
+else case e in #(
+  e) have_dbus_dbus_h_hdr=no ;;
+esac
 fi
 
         CPPFLAGS="$save_CPPFLAGS"
         if test x$have_dbus_dbus_h_hdr = xyes; then
 
-printf "%s\n" "#define HAVE_DBUS_DBUS_H 1" >>confdefs.h
+printf '%s\n' "#define HAVE_DBUS_DBUS_H 1" >>confdefs.h
 
             EXTRA_CFLAGS="$EXTRA_CFLAGS $DBUS_CFLAGS"
             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_dbus.c"
@@ -26819,13 +27417,14 @@ CheckIME()
 if test ${enable_ime+y}
 then :
   enableval=$enable_ime;
-else $as_nop
-  enable_ime=yes
+else case e in #(
+  e) enable_ime=yes ;;
+esac
 fi
 
     if test x$enable_ime = xyes; then
 
-printf "%s\n" "#define SDL_USE_IME 1" >>confdefs.h
+printf '%s\n' "#define SDL_USE_IME 1" >>confdefs.h
 
         SOURCES="$SOURCES $srcdir/src/core/linux/SDL_ime.c"
     fi
@@ -26843,7 +27442,7 @@ do :
   ac_fn_c_check_header_compile "$LINENO" "sys/inotify.h" "ac_cv_header_sys_inotify_h" "$ac_includes_default"
 if test "x$ac_cv_header_sys_inotify_h" = xyes
 then :
-  printf "%s\n" "#define HAVE_SYS_INOTIFY_H 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_SYS_INOTIFY_H 1" >>confdefs.h
  have_inotify_inotify_h_hdr=yes
 fi
 
@@ -26854,7 +27453,7 @@ do :
   ac_fn_c_check_func "$LINENO" "inotify_init" "ac_cv_func_inotify_init"
 if test "x$ac_cv_func_inotify_init" = xyes
 then :
-  printf "%s\n" "#define HAVE_INOTIFY_INIT 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_INOTIFY_INIT 1" >>confdefs.h
  have_inotify=yes
 fi
 
@@ -26862,13 +27461,13 @@ done
     ac_fn_c_check_func "$LINENO" "inotify_init1" "ac_cv_func_inotify_init1"
 if test "x$ac_cv_func_inotify_init1" = xyes
 then :
-  printf "%s\n" "#define HAVE_INOTIFY_INIT1 1" >>confdefs.h
+  printf '%s\n' "#define HAVE_INOTIFY_INIT1 1" >>confdefs.h
 
 fi
 
     if test x$have_inotify_inotify_h_hdr = xyes -a x$have_inotify = xyes; then
 
-printf "%s\n" "#define HAVE_INOTIFY 1" >>confdefs.h
+printf '%s\n' "#define HAVE_INOTIFY 1" >>confdefs.h
 
         case "$host" in
             *-*-freebsd*|*-*-dragonfly*)
@@ -26885,24 +27484,25 @@ CheckIBus()
 if test ${enable_ibus+y}
 then :
   enableval=$enable_ibus;
-else $as_nop
-  enable_ibus=yes
+else case e in #(
+  e) enable_ibus=yes ;;
+esac
 fi
 
     if test x$enable_ibus = xyes; then
 
 pkg_failed=no
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ibus-1.0" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for ibus-1.0" >&5
 printf %s "checking for ibus-1.0... " >&6; }
 
 if test -n "$IBUS_CFLAGS"; then
     pkg_cv_IBUS_CFLAGS="$IBUS_CFLAGS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"ibus-1.0\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"ibus-1.0\""; } >&5
   ($PKG_CONFIG --exists --print-errors "ibus-1.0") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_IBUS_CFLAGS=`$PKG_CONFIG --cflags "ibus-1.0" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
@@ -26916,10 +27516,10 @@ if test -n "$IBUS_LIBS"; then
     pkg_cv_IBUS_LIBS="$IBUS_LIBS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"ibus-1.0\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"ibus-1.0\""; } >&5
   ($PKG_CONFIG --exists --print-errors "ibus-1.0") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_IBUS_LIBS=`$PKG_CONFIG --libs "ibus-1.0" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
@@ -26933,8 +27533,8 @@ fi
 
 
 if test $pkg_failed = yes; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 
 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
         _pkg_short_errors_supported=yes
@@ -26951,14 +27551,14 @@ fi
 
 	have_ibus=no
 elif test $pkg_failed = untried; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 	have_ibus=no
 else
 	IBUS_CFLAGS=$pkg_cv_IBUS_CFLAGS
 	IBUS_LIBS=$pkg_cv_IBUS_LIBS
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf '%s\n' "yes" >&6; }
 	have_ibus=yes
 fi
         save_CPPFLAGS="$CPPFLAGS"
@@ -26967,27 +27567,28 @@ fi
 if test "x$ac_cv_header_ibus_1_0_ibus_h" = xyes
 then :
   have_ibus_ibus_h_hdr=yes
-else $as_nop
-  have_ibus_ibus_h_hdr=no
+else case e in #(
+  e) have_ibus_ibus_h_hdr=no ;;
+esac
 fi
 
         CPPFLAGS="$save_CPPFLAGS"
         if test x$have_ibus_ibus_h_hdr = xyes; then
             if test x$enable_ime != xyes; then
-                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: IME support is required for IBus." >&5
-printf "%s\n" "$as_me: WARNING: IME support is required for IBus." >&2;}
+                { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: IME support is required for IBus." >&5
+printf '%s\n' "$as_me: WARNING: IME support is required for IBus." >&2;}
                 have_ibus_ibus_h_hdr=no
             elif test x$enable_dbus != xyes; then
-                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: DBus support is required for IBus." >&5
-printf "%s\n" "$as_me: WARNING: DBus support is required for IBus." >&2;}
+                { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: DBus support is required for IBus." >&5
+printf '%s\n' "$as_me: WARNING: DBus support is required for IBus." >&2;}
                 have_ibus_ibus_h_hdr=no
             elif test x$have_inotify_inotify_h_hdr != xyes; then
-                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: INotify support is required for IBus." >&5
-printf "%s\n" "$as_me: WARNING: INotify support is required for IBus." >&2;}
+                { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: INotify support is required for IBus." >&5
+printf '%s\n' "$as_me: WARNING: INotify support is required for IBus." >&2;}
                 have_ibus_ibus_h_hdr=no
             else
 
-printf "%s\n" "#define HAVE_IBUS_IBUS_H 1" >>confdefs.h
+printf '%s\n' "#define HAVE_IBUS_IBUS_H 1" >>confdefs.h
 
                 EXTRA_CFLAGS="$EXTRA_CFLAGS $IBUS_CFLAGS"
                 SOURCES="$SOURCES $srcdir/src/core/linux/SDL_ibus.c"
@@ -27002,29 +27603,30 @@ CheckFcitx()
 if test ${enable_fcitx+y}
 then :
   enableval=$enable_fcitx;
-else $as_nop
-  enable_fcitx=yes
+else case e in #(
+  e) enable_fcitx=yes ;;
+esac
 fi
 
     if test x$enable_fcitx = xyes; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for fcitx support" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for fcitx support" >&5
 printf %s "checking for fcitx support... " >&6; }
         have_fcitx=no
         if test x$enable_ime != xyes; then
-            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: IME support is required for fcitx." >&5
-printf "%s\n" "$as_me: WARNING: IME support is required for fcitx." >&2;}
+            { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: IME support is required for fcitx." >&5
+printf '%s\n' "$as_me: WARNING: IME support is required for fcitx." >&2;}
         elif test x$have_dbus_dbus_h_hdr != xyes; then
-            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: DBus support is required for fcitx." >&5
-printf "%s\n" "$as_me: WARNING: DBus support is required for fcitx." >&2;}
+            { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: DBus support is required for fcitx." >&5
+printf '%s\n' "$as_me: WARNING: DBus support is required for fcitx." >&2;}
         else
             have_fcitx=yes
 
-printf "%s\n" "#define HAVE_FCITX 1" >>confdefs.h
+printf '%s\n' "#define HAVE_FCITX 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_fcitx.c"
         fi
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_fcitx" >&5
-printf "%s\n" "$have_fcitx" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_fcitx" >&5
+printf '%s\n' "$have_fcitx" >&6; }
     fi
 }
 
@@ -27034,8 +27636,9 @@ CheckJoystickMFI()
 if test ${enable_joystick_mfi+y}
 then :
   enableval=$enable_joystick_mfi;
-else $as_nop
-  enable_joystick_mfi=yes
+else case e in #(
+  e) enable_joystick_mfi=yes ;;
+esac
 fi
 
 
@@ -27044,7 +27647,7 @@ fi
         save_LDFLAGS="$LDFLAGS"
         CFLAGS="$CFLAGS -x objective-c -fobjc-weak"
         LDFLAGS="$LDFLAGS -Wl,-weak_framework,CoreHaptics -Wl,-weak_framework,GameController"
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GameController framework" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for GameController framework" >&5
 printf %s "checking for GameController framework... " >&6; }
         enable_joystick_mfi=no
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -27078,11 +27681,11 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam \
         CFLAGS="$save_CFLAGS"
         LDFLAGS="$save_LDFLAGS"
 
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $enable_joystick_mfi" >&5
-printf "%s\n" "$enable_joystick_mfi" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $enable_joystick_mfi" >&5
+printf '%s\n' "$enable_joystick_mfi" >&6; }
         if test x$enable_joystick_mfi = xyes; then
 
-printf "%s\n" "#define SDL_JOYSTICK_MFI 1" >>confdefs.h
+printf '%s\n' "#define SDL_JOYSTICK_MFI 1" >>confdefs.h
 
             EXTRA_CFLAGS="$EXTRA_CFLAGS -fobjc-weak -Wno-unused-command-line-argument"
             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-weak_framework,CoreHaptics -Wl,-weak_framework,GameController"
@@ -27107,16 +27710,18 @@ CheckPTHREAD()
 if test ${enable_pthreads+y}
 then :
   enableval=$enable_pthreads;
-else $as_nop
-  enable_pthreads=maybe
+else case e in #(
+  e) enable_pthreads=maybe ;;
+esac
 fi
 
     # Check whether --enable-pthread-sem was given.
 if test ${enable_pthread_sem+y}
 then :
   enableval=$enable_pthread_sem;
-else $as_nop
-  enable_pthread_sem=maybe
+else case e in #(
+  e) enable_pthread_sem=maybe ;;
+esac
 fi
 
 
@@ -27207,7 +27812,7 @@ fi
         # Add the pthread compiler flags and libraries
         CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
         # Check to see if we have pthread support on this system
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for pthreads" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for pthreads" >&5
 printf %s "checking for pthreads... " >&6; }
         use_pthreads=no
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -27232,15 +27837,15 @@ then :
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $use_pthreads" >&5
-printf "%s\n" "$use_pthreads" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $use_pthreads" >&5
+printf '%s\n' "$use_pthreads" >&6; }
         # Restore the compiler flags and libraries
         CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
 
         # Do futher testing if we have pthread support...
         if test x$use_pthreads = xyes; then
 
-printf "%s\n" "#define SDL_THREAD_PTHREAD 1" >>confdefs.h
+printf '%s\n' "#define SDL_THREAD_PTHREAD 1" >>confdefs.h
 
             EXTRA_CFLAGS="$EXTRA_CFLAGS $pthread_cflags"
             EXTRA_LDFLAGS="$EXTRA_LDFLAGS $pthread_lib"
@@ -27252,7 +27857,7 @@ printf "%s\n" "#define SDL_THREAD_PTHREAD 1" >>confdefs.h
             CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
 
             # Check to see if recursive mutexes are available
-            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for recursive mutexes" >&5
+            { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for recursive mutexes" >&5
 printf %s "checking for recursive mutexes... " >&6; }
             has_recursive_mutexes=no
             if test x$has_recursive_mutexes = xno; then
@@ -27278,7 +27883,7 @@ then :
 
                 has_recursive_mutexes=yes
 
-printf "%s\n" "#define SDL_THREAD_PTHREAD_RECURSIVE_MUTEX 1" >>confdefs.h
+printf '%s\n' "#define SDL_THREAD_PTHREAD_RECURSIVE_MUTEX 1" >>confdefs.h
 
 
 fi
@@ -27308,19 +27913,19 @@ then :
 
                 has_recursive_mutexes=yes
 
-printf "%s\n" "#define SDL_THREAD_PTHREAD_RECURSIVE_MUTEX_NP 1" >>confdefs.h
+printf '%s\n' "#define SDL_THREAD_PTHREAD_RECURSIVE_MUTEX_NP 1" >>confdefs.h
 
 
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
             fi
-            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $has_recursive_mutexes" >&5
-printf "%s\n" "$has_recursive_mutexes" >&6; }
+            { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $has_recursive_mutexes" >&5
+printf '%s\n' "$has_recursive_mutexes" >&6; }
 
             # Check to see if pthread semaphore support is missing
             if test x$enable_pthread_sem = xyes; then
-                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for pthread semaphores" >&5
+                { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for pthread semaphores" >&5
 printf %s "checking for pthread semaphores... " >&6; }
                 have_pthread_sem=no
                 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -27342,11 +27947,11 @@ then :
   have_pthread_sem=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_pthread_sem" >&5
-printf "%s\n" "$have_pthread_sem" >&6; }
+                { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_pthread_sem" >&5
+printf '%s\n' "$have_pthread_sem" >&6; }
             fi
             if test x$have_pthread_sem = xyes; then
-                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for sem_timedwait" >&5
+                { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for sem_timedwait" >&5
 printf %s "checking for sem_timedwait... " >&6; }
                 have_sem_timedwait=no
                 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -27370,14 +27975,14 @@ then :
 
                 have_sem_timedwait=yes
 
-printf "%s\n" "#define HAVE_SEM_TIMEDWAIT 1" >>confdefs.h
+printf '%s\n' "#define HAVE_SEM_TIMEDWAIT 1" >>confdefs.h
 
 
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_sem_timedwait" >&5
-printf "%s\n" "$have_sem_timedwait" >&6; }
+                { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_sem_timedwait" >&5
+printf '%s\n' "$have_sem_timedwait" >&6; }
             fi
 
             ac_fn_c_check_header_compile "$LINENO" "pthread_np.h" "ac_cv_header_pthread_np_h" " #include <pthread.h>
@@ -27385,26 +27990,33 @@ printf "%s\n" "$have_sem_timedwait" >&6; }
 if test "x$ac_cv_header_pthread_np_h" = xyes
 then :
   have_pthread_np_h=yes
-else $as_nop
-  have_pthread_np_h=no
+else case e in #(
+  e) have_pthread_np_h=no ;;
+esac
 fi
 
             if test x$have_pthread_np_h = xyes; then
 
-printf "%s\n" "#define HAVE_PTHREAD_NP_H 1" >>confdefs.h
+printf '%s\n' "#define HAVE_PTHREAD_NP_H 1" >>confdefs.h
 
             fi
 
             # Check to see if pthread naming is available
-            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for pthread_setname_np" >&5
+            { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for pthread_setname_np" >&5
 printf %s "checking for pthread_setname_np... " >&6; }
             cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char pthread_setname_np ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char pthread_setname_np (void);
 int
 main (void)
 {
@@ -27418,28 +28030,35 @@ then :
 
               has_pthread_setname_np=yes
 
-printf "%s\n" "#define HAVE_PTHREAD_SETNAME_NP 1" >>confdefs.h
+printf '%s\n' "#define HAVE_PTHREAD_SETNAME_NP 1" >>confdefs.h
 
 
-else $as_nop
-
+else case e in #(
+  e)
               has_pthread_setname_np=no
-
+             ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $has_pthread_setname_np" >&5
-printf "%s\n" "$has_pthread_setname_np" >&6; }
+            { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $has_pthread_setname_np" >&5
+printf '%s\n' "$has_pthread_setname_np" >&6; }
 
-            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for pthread_set_name_np" >&5
+            { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for pthread_set_name_np" >&5
 printf %s "checking for pthread_set_name_np... " >&6; }
             cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char pthread_set_name_np ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char pthread_set_name_np (void);
 int
 main (void)
 {
@@ -27453,18 +28072,19 @@ then :
 
               has_pthread_set_name_np=yes
 
-printf "%s\n" "#define HAVE_PTHREAD_SET_NAME_NP 1" >>confdefs.h
+printf '%s\n' "#define HAVE_PTHREAD_SET_NAME_NP 1" >>confdefs.h
 
 
-else $as_nop
-
+else case e in #(
+  e)
               has_pthread_set_name_np=no
-
+             ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $has_pthread_set_name_np" >&5
-printf "%s\n" "$has_pthread_set_name_np" >&6; }
+            { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $has_pthread_set_name_np" >&5
+printf '%s\n' "$has_pthread_set_name_np" >&6; }
 
             # Restore the compiler flags and libraries
             CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
@@ -27498,7 +28118,7 @@ printf "%s\n" "$has_pthread_set_name_np" >&6; }
 
 CheckWINDOWS()
 {
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking Windows compiler" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking Windows compiler" >&5
 printf %s "checking Windows compiler... " >&6; }
     have_win32_gcc=no
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -27519,15 +28139,15 @@ then :
   have_win32_gcc=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_win32_gcc" >&5
-printf "%s\n" "$have_win32_gcc" >&6; }
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_win32_gcc" >&5
+printf '%s\n' "$have_win32_gcc" >&6; }
     if test x$have_win32_gcc != xyes; then
        as_fn_error $? "
 *** Your compiler ($CC) does not produce Windows executables!
        " "$LINENO" 5
     fi
 
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking Windows CE" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking Windows CE" >&5
 printf %s "checking Windows CE... " >&6; }
     have_wince=no
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -27555,8 +28175,8 @@ then :
 
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_wince" >&5
-printf "%s\n" "$have_wince" >&6; }
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_wince" >&5
+printf '%s\n' "$have_wince" >&6; }
 
     # headers needed elsewhere
     ac_fn_c_check_header_compile "$LINENO" "tpcshrd.h" "ac_cv_header_tpcshrd_h" "$ac_includes_default"
@@ -27567,7 +28187,7 @@ fi
 
     if test x$have_tpcshrd_h = xyes; then
 
-printf "%s\n" "#define HAVE_TPCSHRD_H 1" >>confdefs.h
+printf '%s\n' "#define HAVE_TPCSHRD_H 1" >>confdefs.h
 
     fi
     ac_fn_c_check_header_compile "$LINENO" "roapi.h" "ac_cv_header_roapi_h" "$ac_includes_default"
@@ -27578,7 +28198,7 @@ fi
 
     if test x$have_roapi_h = xyes; then
 
-printf "%s\n" "#define HAVE_ROAPI_H 1" >>confdefs.h
+printf '%s\n' "#define HAVE_ROAPI_H 1" >>confdefs.h
 
     fi
     ac_fn_c_check_header_compile "$LINENO" "shellscalingapi.h" "ac_cv_header_shellscalingapi_h" "$ac_includes_default"
@@ -27589,14 +28209,14 @@ fi
 
     if test x$shellscalingapi_h = xyes; then
 
-printf "%s\n" "#define HAVE_SHELLSCALINGAPI_H 1" >>confdefs.h
+printf '%s\n' "#define HAVE_SHELLSCALINGAPI_H 1" >>confdefs.h
 
     fi
 }
 
 CheckOS2()
 {
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking OS/2 compiler" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking OS/2 compiler" >&5
 printf %s "checking OS/2 compiler... " >&6; }
     have_os2_gcc=no
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -27615,8 +28235,8 @@ then :
   have_os2_gcc=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_os2_gcc" >&5
-printf "%s\n" "$have_os2_gcc" >&6; }
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_os2_gcc" >&5
+printf '%s\n' "$have_os2_gcc" >&6; }
     if test x$have_os2_gcc != xyes; then
        as_fn_error $? "
 *** Your compiler ($CC) does not produce OS/2 executables!
@@ -27630,8 +28250,9 @@ CheckDIRECTX()
 if test ${enable_directx+y}
 then :
   enableval=$enable_directx;
-else $as_nop
-  enable_directx=yes
+else case e in #(
+  e) enable_directx=yes ;;
+esac
 fi
 
     if test x$enable_directx = xyes; then
@@ -27647,7 +28268,7 @@ then :
   have_d3d11=yes
 fi
 
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for compatible d3d12 headers" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for compatible d3d12 headers" >&5
 printf %s "checking for compatible d3d12 headers... " >&6; }
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -27667,12 +28288,13 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   have_d3d12=yes
-else $as_nop
-  have_d3d12=no
+else case e in #(
+  e) have_d3d12=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_d3d12" >&5
-printf "%s\n" "$have_d3d12" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_d3d12" >&5
+printf '%s\n' "$have_d3d12" >&6; }
 
         ac_fn_c_check_header_compile "$LINENO" "ddraw.h" "ac_cv_header_ddraw_h" "$ac_includes_default"
 if test "x$ac_cv_header_ddraw_h" = xyes
@@ -27701,22 +28323,22 @@ fi
 
         if test x$have_ddraw = xyes; then
 
-printf "%s\n" "#define HAVE_DDRAW_H 1" >>confdefs.h
+printf '%s\n' "#define HAVE_DDRAW_H 1" >>confdefs.h
 
         fi
         if test x$have_dinput = xyes; then
 
-printf "%s\n" "#define HAVE_DINPUT_H 1" >>confdefs.h
+printf '%s\n' "#define HAVE_DINPUT_H 1" >>confdefs.h
 
         fi
         if test x$have_dsound = xyes; then
 
-printf "%s\n" "#define HAVE_DSOUND_H 1" >>confdefs.h
+printf '%s\n' "#define HAVE_DSOUND_H 1" >>confdefs.h
 
         fi
         if test x$have_dxgi = xyes; then
 
-printf "%s\n" "#define HAVE_DXGI_H 1" >>confdefs.h
+printf '%s\n' "#define HAVE_DXGI_H 1" >>confdefs.h
 
         fi
 
@@ -27733,8 +28355,9 @@ printf "%s\n" "#define HAVE_DXGI_H 1" >>confdefs.h
 if test ${enable_xinput+y}
 then :
   enableval=$enable_xinput;
-else $as_nop
-  enable_xinput=yes
+else case e in #(
+  e) enable_xinput=yes ;;
+esac
 fi
 
     if test x$enable_xinput = xyes; then
@@ -27746,12 +28369,12 @@ fi
 
         if test x$have_xinput = xyes; then
 
-printf "%s\n" "#define HAVE_XINPUT_H 1" >>confdefs.h
+printf '%s\n' "#define HAVE_XINPUT_H 1" >>confdefs.h
 
         fi
     fi
 
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for windows.gaming.input.h" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for windows.gaming.input.h" >&5
 printf %s "checking for windows.gaming.input.h... " >&6; }
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -27771,16 +28394,17 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   have_wgi=yes
-else $as_nop
-  have_wgi=no
+else case e in #(
+  e) have_wgi=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_wgi" >&5
-printf "%s\n" "$have_wgi" >&6; }
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_wgi" >&5
+printf '%s\n' "$have_wgi" >&6; }
 
     if test x$have_wgi = xyes; then
 
-printf "%s\n" "#define HAVE_WINDOWS_GAMING_INPUT_H 1" >>confdefs.h
+printf '%s\n' "#define HAVE_WINDOWS_GAMING_INPUT_H 1" >>confdefs.h
 
     fi
 
@@ -27792,20 +28416,21 @@ fi
 
     if test x$have_wasapi = xyes; then
 
-printf "%s\n" "#define HAVE_MMDEVICEAPI_H 1" >>confdefs.h
+printf '%s\n' "#define HAVE_MMDEVICEAPI_H 1" >>confdefs.h
 
     fi
     ac_fn_c_check_header_compile "$LINENO" "audioclient.h" "ac_cv_header_audioclient_h" "$ac_includes_default"
 if test "x$ac_cv_header_audioclient_h" = xyes
 then :
 
-else $as_nop
-  have_wasapi=no
+else case e in #(
+  e) have_wasapi=no ;;
+esac
 fi
 
     if test x$have_wasapi = xyes; then
 
-printf "%s\n" "#define HAVE_AUDIOCLIENT_H 1" >>confdefs.h
+printf '%s\n' "#define HAVE_AUDIOCLIENT_H 1" >>confdefs.h
 
     fi
 
@@ -27813,8 +28438,9 @@ printf "%s\n" "#define HAVE_AUDIOCLIENT_H 1" >>confdefs.h
 if test ${enable_wasapi+y}
 then :
   enableval=$enable_wasapi;
-else $as_nop
-  enable_wasapi=yes
+else case e in #(
+  e) enable_wasapi=yes ;;
+esac
 fi
 
 }
@@ -27822,34 +28448,41 @@ fi
 CheckDLOPEN()
 {
 
-printf "%s\n" "#define DYNAPI_NEEDS_DLOPEN 1" >>confdefs.h
+printf '%s\n' "#define DYNAPI_NEEDS_DLOPEN 1" >>confdefs.h
 
 
     ac_fn_c_check_header_compile "$LINENO" "dlfcn.h" "ac_cv_header_dlfcn_h" "$ac_includes_default"
 if test "x$ac_cv_header_dlfcn_h" = xyes
 then :
   have_dlfcn_h=yes
-else $as_nop
-  have_dlfcn_h=no
+else case e in #(
+  e) have_dlfcn_h=no ;;
+esac
 fi
 
 
     have_dlopen=no
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for dlopen in -lc" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for dlopen in -lc" >&5
 printf %s "checking for dlopen in -lc... " >&6; }
 if test ${ac_cv_lib_c_dlopen+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lc  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char dlopen ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen (void);
 int
 main (void)
 {
@@ -27861,34 +28494,42 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_c_dlopen=yes
-else $as_nop
-  ac_cv_lib_c_dlopen=no
+else case e in #(
+  e) ac_cv_lib_c_dlopen=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_c_dlopen" >&5
-printf "%s\n" "$ac_cv_lib_c_dlopen" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_c_dlopen" >&5
+printf '%s\n' "$ac_cv_lib_c_dlopen" >&6; }
 if test "x$ac_cv_lib_c_dlopen" = xyes
 then :
   have_dlopen=yes
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
+else case e in #(
+  e) { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
 printf %s "checking for dlopen in -ldl... " >&6; }
 if test ${ac_cv_lib_dl_dlopen+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-ldl  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char dlopen ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen (void);
 int
 main (void)
 {
@@ -27900,34 +28541,37 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_dl_dlopen=yes
-else $as_nop
-  ac_cv_lib_dl_dlopen=no
+else case e in #(
+  e) ac_cv_lib_dl_dlopen=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
-printf "%s\n" "$ac_cv_lib_dl_dlopen" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
+printf '%s\n' "$ac_cv_lib_dl_dlopen" >&6; }
 if test "x$ac_cv_lib_dl_dlopen" = xyes
 then :
   have_dlopen=yes; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl"
 fi
-
+ ;;
+esac
 fi
 
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for dlopen" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for dlopen" >&5
 printf %s "checking for dlopen... " >&6; }
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_dlopen" >&5
-printf "%s\n" "$have_dlopen" >&6; }
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_dlopen" >&5
+printf '%s\n' "$have_dlopen" >&6; }
 
     if test x$have_dlfcn_h = xyes -a x$have_dlopen = xyes; then
 
-printf "%s\n" "#define HAVE_DLOPEN 1" >>confdefs.h
+printf '%s\n' "#define HAVE_DLOPEN 1" >>confdefs.h
 
        if test x$enable_loadso = xyes; then
 
-printf "%s\n" "#define SDL_LOADSO_DLOPEN 1" >>confdefs.h
+printf '%s\n' "#define SDL_LOADSO_DLOPEN 1" >>confdefs.h
 
           SOURCES="$SOURCES $srcdir/src/loadso/dlopen/*.c"
           have_loadso=yes
@@ -27937,7 +28581,7 @@ printf "%s\n" "#define SDL_LOADSO_DLOPEN 1" >>confdefs.h
 
 CheckO_CLOEXEC()
 {
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for O_CLOEXEC" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for O_CLOEXEC" >&5
 printf %s "checking for O_CLOEXEC... " >&6; }
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -27956,15 +28600,16 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   have_o_cloexec=yes
-else $as_nop
-  have_o_cloexec=no
+else case e in #(
+  e) have_o_cloexec=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_o_cloexec" >&5
-printf "%s\n" "$have_o_cloexec" >&6; }
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_o_cloexec" >&5
+printf '%s\n' "$have_o_cloexec" >&6; }
     if test $have_o_cloexec = yes; then
 
-printf "%s\n" "#define HAVE_O_CLOEXEC 1" >>confdefs.h
+printf '%s\n' "#define HAVE_O_CLOEXEC 1" >>confdefs.h
 
     fi
 }
@@ -27974,21 +28619,27 @@ CheckUSBHID()
     case "$host" in
         *-*-*bsd*|*-*-dragonfly*)
             if test x$enable_joystick = xyes; then
-                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for hid_init in -lusbhid" >&5
+                { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for hid_init in -lusbhid" >&5
 printf %s "checking for hid_init in -lusbhid... " >&6; }
 if test ${ac_cv_lib_usbhid_hid_init+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lusbhid  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char hid_init ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char hid_init (void);
 int
 main (void)
 {
@@ -28000,15 +28651,17 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_usbhid_hid_init=yes
-else $as_nop
-  ac_cv_lib_usbhid_hid_init=no
+else case e in #(
+  e) ac_cv_lib_usbhid_hid_init=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_usbhid_hid_init" >&5
-printf "%s\n" "$ac_cv_lib_usbhid_hid_init" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_usbhid_hid_init" >&5
+printf '%s\n' "$ac_cv_lib_usbhid_hid_init" >&6; }
 if test "x$ac_cv_lib_usbhid_hid_init" = xyes
 then :
   have_libusbhid=yes
@@ -28041,21 +28694,27 @@ then :
   USB_CFLAGS="-DHAVE_LIBUSB_H"
 fi
 
-                    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for hid_init in -lusb" >&5
+                    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for hid_init in -lusb" >&5
 printf %s "checking for hid_init in -lusb... " >&6; }
 if test ${ac_cv_lib_usb_hid_init+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lusb  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char hid_init ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char hid_init (void);
 int
 main (void)
 {
@@ -28067,15 +28726,17 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_usb_hid_init=yes
-else $as_nop
-  ac_cv_lib_usb_hid_init=no
+else case e in #(
+  e) ac_cv_lib_usb_hid_init=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_usb_hid_init" >&5
-printf "%s\n" "$ac_cv_lib_usb_hid_init" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_usb_hid_init" >&5
+printf '%s\n' "$ac_cv_lib_usb_hid_init" >&6; }
 if test "x$ac_cv_lib_usb_hid_init" = xyes
 then :
   USB_LIBS="$USB_LIBS -lusb"
@@ -28086,7 +28747,7 @@ fi
                 save_CFLAGS="$CFLAGS"
                 CFLAGS="$CFLAGS $USB_CFLAGS"
 
-                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for usbhid" >&5
+                { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for usbhid" >&5
 printf %s "checking for usbhid... " >&6; }
                 have_usbhid=no
                 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -28128,11 +28789,11 @@ then :
   have_usbhid=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_usbhid" >&5
-printf "%s\n" "$have_usbhid" >&6; }
+                { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_usbhid" >&5
+printf '%s\n' "$have_usbhid" >&6; }
 
                 if test x$have_usbhid = xyes; then
-                    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ucr_data member of usb_ctl_report" >&5
+                    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for ucr_data member of usb_ctl_report" >&5
 printf %s "checking for ucr_data member of usb_ctl_report... " >&6; }
                     have_usbhid_ucr_data=no
                     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -28176,10 +28837,10 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
                     if test x$have_usbhid_ucr_data = xyes; then
                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_UCR_DATA"
                     fi
-                    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_usbhid_ucr_data" >&5
-printf "%s\n" "$have_usbhid_ucr_data" >&6; }
+                    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_usbhid_ucr_data" >&5
+printf '%s\n' "$have_usbhid_ucr_data" >&6; }
 
-                    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for new usbhid API" >&5
+                    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for new usbhid API" >&5
 printf %s "checking for new usbhid API... " >&6; }
                     have_usbhid_new=no
                     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -28223,10 +28884,10 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
                     if test x$have_usbhid_new = xyes; then
                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_NEW"
                     fi
-                    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_usbhid_new" >&5
-printf "%s\n" "$have_usbhid_new" >&6; }
+                    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_usbhid_new" >&5
+printf '%s\n' "$have_usbhid_new" >&6; }
 
-                    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for struct joystick in machine/joystick.h" >&5
+                    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for struct joystick in machine/joystick.h" >&5
 printf %s "checking for struct joystick in machine/joystick.h... " >&6; }
                     have_machine_joystick=no
                     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -28251,14 +28912,14 @@ fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
                     if test x$have_machine_joystick = xyes; then
 
-printf "%s\n" "#define SDL_HAVE_MACHINE_JOYSTICK_H 1" >>confdefs.h
+printf '%s\n' "#define SDL_HAVE_MACHINE_JOYSTICK_H 1" >>confdefs.h
 
                     fi
-                    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_machine_joystick" >&5
-printf "%s\n" "$have_machine_joystick" >&6; }
+                    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_machine_joystick" >&5
+printf '%s\n' "$have_machine_joystick" >&6; }
 
 
-printf "%s\n" "#define SDL_JOYSTICK_USBHID 1" >>confdefs.h
+printf '%s\n' "#define SDL_JOYSTICK_USBHID 1" >>confdefs.h
 
                     SOURCES="$SOURCES $srcdir/src/joystick/bsd/*.c"
                     EXTRA_CFLAGS="$EXTRA_CFLAGS $USB_CFLAGS"
@@ -28278,16 +28939,18 @@ CheckHIDAPI()
 if test ${enable_hidapi_joystick+y}
 then :
   enableval=$enable_hidapi_joystick;
-else $as_nop
-  enable_hidapi_joystick=yes
+else case e in #(
+  e) enable_hidapi_joystick=yes ;;
+esac
 fi
 
     # Check whether --enable-hidapi-libusb was given.
 if test ${enable_hidapi_libusb+y}
 then :
   enableval=$enable_hidapi_libusb;
-else $as_nop
-  enable_hidapi_libusb=maybe
+else case e in #(
+  e) enable_hidapi_libusb=maybe ;;
+esac
 fi
 
 
@@ -28311,17 +28974,17 @@ fi
         if test x$enable_hidapi_libusb = xyes; then
 
 pkg_failed=no
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for libusb-1.0" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for libusb-1.0" >&5
 printf %s "checking for libusb-1.0... " >&6; }
 
 if test -n "$LIBUSB_CFLAGS"; then
     pkg_cv_LIBUSB_CFLAGS="$LIBUSB_CFLAGS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libusb-1.0\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libusb-1.0\""; } >&5
   ($PKG_CONFIG --exists --print-errors "libusb-1.0") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_LIBUSB_CFLAGS=`$PKG_CONFIG --cflags "libusb-1.0" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
@@ -28335,10 +28998,10 @@ if test -n "$LIBUSB_LIBS"; then
     pkg_cv_LIBUSB_LIBS="$LIBUSB_LIBS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libusb-1.0\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libusb-1.0\""; } >&5
   ($PKG_CONFIG --exists --print-errors "libusb-1.0") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_LIBUSB_LIBS=`$PKG_CONFIG --libs "libusb-1.0" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
@@ -28352,8 +29015,8 @@ fi
 
 
 if test $pkg_failed = yes; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 
 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
         _pkg_short_errors_supported=yes
@@ -28370,14 +29033,14 @@ fi
 
 	have_libusb=no
 elif test $pkg_failed = untried; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 	have_libusb=no
 else
 	LIBUSB_CFLAGS=$pkg_cv_LIBUSB_CFLAGS
 	LIBUSB_LIBS=$pkg_cv_LIBUSB_LIBS
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf '%s\n' "yes" >&6; }
 	have_libusb=yes
 fi
             save_CPPFLAGS="$CPPFLAGS"
@@ -28386,8 +29049,9 @@ fi
 if test "x$ac_cv_header_libusb_h" = xyes
 then :
   have_libusb_h=yes
-else $as_nop
-  have_libusb_h=no
+else case e in #(
+  e) have_libusb_h=no ;;
+esac
 fi
 
             CPPFLAGS="$save_CPPFLAGS"
@@ -28399,15 +29063,15 @@ fi
         if test x$hidapi_support = xyes; then
             if test x$have_libusb_h = xyes; then
 
-printf "%s\n" "#define HAVE_LIBUSB 1" >>confdefs.h
+printf '%s\n' "#define HAVE_LIBUSB 1" >>confdefs.h
 
                 EXTRA_CFLAGS="$EXTRA_CFLAGS $LIBUSB_CFLAGS"
                 if test x$require_hidapi_libusb = xyes; then
                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS $LIBUSB_LIBS"
                 else
                     if test x$have_loadso != xyes; then
-                        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic libusb loading" >&5
-printf "%s\n" "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic libusb loading" >&2;}
+                        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: You must have SDL_LoadObject() support for dynamic libusb loading" >&5
+printf '%s\n' "$as_me: WARNING: You must have SDL_LoadObject() support for dynamic libusb loading" >&2;}
                     fi
                     # libusb is loaded dynamically, so don't add it to LDFLAGS
                     libusb_lib=""
@@ -28426,21 +29090,21 @@ printf "%s\n" "$as_me: WARNING: You must have SDL_LoadObject() support for dynam
                         libusb_lib=`find_lib "libusb-1.0.so.*" "" | sed 's/.*\/\(.*\)/\1/; q'`
                     fi
 
-printf "%s\n" "#define SDL_LIBUSB_DYNAMIC \"$libusb_lib\"" >>confdefs.h
+printf '%s\n' "#define SDL_LIBUSB_DYNAMIC \"$libusb_lib\"" >>confdefs.h
 
                 fi
             fi
         fi
 
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for hidapi joystick support" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for hidapi joystick support" >&5
 printf %s "checking for hidapi joystick support... " >&6; }
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $hidapi_support" >&5
-printf "%s\n" "$hidapi_support" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $hidapi_support" >&5
+printf '%s\n' "$hidapi_support" >&6; }
     fi
 
     if test x$enable_joystick = xyes -a x$hidapi_support = xyes -a x$enable_hidapi_joystick = xyes; then
 
-printf "%s\n" "#define SDL_JOYSTICK_HIDAPI 1" >>confdefs.h
+printf '%s\n' "#define SDL_JOYSTICK_HIDAPI 1" >>confdefs.h
 
         SOURCES="$SOURCES $srcdir/src/joystick/hidapi/*.c"
     fi
@@ -28452,26 +29116,33 @@ CheckClockGettime()
 if test ${enable_clock_gettime+y}
 then :
   enableval=$enable_clock_gettime;
-else $as_nop
-  enable_clock_gettime=yes
+else case e in #(
+  e) enable_clock_gettime=yes ;;
+esac
 fi
 
     if test x$enable_clock_gettime = xyes; then
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for clock_gettime in -lc" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for clock_gettime in -lc" >&5
 printf %s "checking for clock_gettime in -lc... " >&6; }
 if test ${ac_cv_lib_c_clock_gettime+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lc  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char clock_gettime ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char clock_gettime (void);
 int
 main (void)
 {
@@ -28483,15 +29154,17 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_c_clock_gettime=yes
-else $as_nop
-  ac_cv_lib_c_clock_gettime=no
+else case e in #(
+  e) ac_cv_lib_c_clock_gettime=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_c_clock_gettime" >&5
-printf "%s\n" "$ac_cv_lib_c_clock_gettime" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_c_clock_gettime" >&5
+printf '%s\n' "$ac_cv_lib_c_clock_gettime" >&6; }
 if test "x$ac_cv_lib_c_clock_gettime" = xyes
 then :
   have_clock_gettime=yes
@@ -28499,24 +29172,30 @@ fi
 
         if test x$have_clock_gettime = xyes; then
 
-printf "%s\n" "#define HAVE_CLOCK_GETTIME 1" >>confdefs.h
+printf '%s\n' "#define HAVE_CLOCK_GETTIME 1" >>confdefs.h
 
         else
-            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for clock_gettime in -lrt" >&5
+            { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for clock_gettime in -lrt" >&5
 printf %s "checking for clock_gettime in -lrt... " >&6; }
 if test ${ac_cv_lib_rt_clock_gettime+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lrt  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char clock_gettime ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char clock_gettime (void);
 int
 main (void)
 {
@@ -28528,15 +29207,17 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_rt_clock_gettime=yes
-else $as_nop
-  ac_cv_lib_rt_clock_gettime=no
+else case e in #(
+  e) ac_cv_lib_rt_clock_gettime=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_rt_clock_gettime" >&5
-printf "%s\n" "$ac_cv_lib_rt_clock_gettime" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_rt_clock_gettime" >&5
+printf '%s\n' "$ac_cv_lib_rt_clock_gettime" >&6; }
 if test "x$ac_cv_lib_rt_clock_gettime" = xyes
 then :
   have_clock_gettime=yes
@@ -28545,7 +29226,7 @@ fi
             if test x$have_clock_gettime = xyes; then
                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lrt"
 
-printf "%s\n" "#define HAVE_CLOCK_GETTIME 1" >>confdefs.h
+printf '%s\n' "#define HAVE_CLOCK_GETTIME 1" >>confdefs.h
 
             fi
         fi
@@ -28571,8 +29252,9 @@ CheckRPATH()
 if test ${enable_rpath+y}
 then :
   enableval=$enable_rpath;
-else $as_nop
-  enable_rpath=yes
+else case e in #(
+  e) enable_rpath=yes ;;
+esac
 fi
 
 }
@@ -28583,8 +29265,9 @@ CheckEventSignals()
 if test ${enable_backgrounding_signal+y}
 then :
   enableval=$enable_backgrounding_signal;
-else $as_nop
-  enable_backgrounding_signal=no
+else case e in #(
+  e) enable_backgrounding_signal=no ;;
+esac
 fi
 
     if test x$enable_backgrounding_signal != xno; then
@@ -28595,8 +29278,9 @@ fi
 if test ${enable_foregrounding_signal+y}
 then :
   enableval=$enable_foregrounding_signal;
-else $as_nop
-  enable_foregrounding_signal=no
+else case e in #(
+  e) enable_foregrounding_signal=no ;;
+esac
 fi
 
     if test x$enable_foregrounding_signal != xno; then
@@ -28610,13 +29294,14 @@ CheckVirtualJoystick()
 if test ${enable_joystick_virtual+y}
 then :
   enableval=$enable_joystick_virtual;
-else $as_nop
-  enable_joystick_virtual=yes
+else case e in #(
+  e) enable_joystick_virtual=yes ;;
+esac
 fi
 
     if test x$enable_joystick = xyes -a x$enable_joystick_virtual = xyes; then
 
-printf "%s\n" "#define SDL_JOYSTICK_VIRTUAL 1" >>confdefs.h
+printf '%s\n' "#define SDL_JOYSTICK_VIRTUAL 1" >>confdefs.h
 
         SOURCES="$SOURCES $srcdir/src/joystick/virtual/*.c"
         have_joystick_virtual=yes
@@ -28646,7 +29331,7 @@ case "$host" in
                 if test x$enable_video = xyes; then
                     SOURCES="$SOURCES $srcdir/src/core/android/*.c $srcdir/src/video/android/*.c"
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_ANDROID 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_ANDROID 1" >>confdefs.h
 
                     SUMMARY_video="${SUMMARY_video} android"
                     have_video=yes
@@ -28751,13 +29436,14 @@ printf "%s\n" "#define SDL_VIDEO_DRIVER_ANDROID 1" >>confdefs.h
 if test "x$ac_cv_header_sys_audioio_h" = xyes
 then :
   have_sys_audioio_h=yes
-else $as_nop
-  have_sys_audioio_h=no
+else case e in #(
+  e) have_sys_audioio_h=no ;;
+esac
 fi
 
                 if test x$have_sys_audioio_h = xyes; then
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_SUNAUDIO 1" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_SUNAUDIO 1" >>confdefs.h
 
                     SOURCES="$SOURCES $srcdir/src/audio/sun/*.c"
                     SUMMARY_audio="${SUMMARY_audio} sun"
@@ -28766,7 +29452,7 @@ printf "%s\n" "#define SDL_AUDIO_DRIVER_SUNAUDIO 1" >>confdefs.h
             ;;
             netbsd)  # Don't use this on OpenBSD, it's busted.
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_NETBSD 1" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_NETBSD 1" >>confdefs.h
 
                 SOURCES="$SOURCES $srcdir/src/audio/netbsd/*.c"
                 SUMMARY_audio="${SUMMARY_audio} netbsd"
@@ -28774,7 +29460,7 @@ printf "%s\n" "#define SDL_AUDIO_DRIVER_NETBSD 1" >>confdefs.h
             ;;
             aix)
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_PAUDIO 1" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_PAUDIO 1" >>confdefs.h
 
                 SOURCES="$SOURCES $srcdir/src/audio/paudio/*.c"
                 SUMMARY_audio="${SUMMARY_audio} paudio"
@@ -28782,19 +29468,19 @@ printf "%s\n" "#define SDL_AUDIO_DRIVER_PAUDIO 1" >>confdefs.h
             ;;
             android)
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_ANDROID 1" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_ANDROID 1" >>confdefs.h
 
                 SOURCES="$SOURCES $srcdir/src/audio/android/*.c"
                 SUMMARY_audio="${SUMMARY_audio} android"
 
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_OPENSLES 1" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_OPENSLES 1" >>confdefs.h
 
                 SOURCES="$SOURCES $srcdir/src/audio/openslES/*.c"
                 SUMMARY_audio="${SUMMARY_audio} openslES"
 
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_AAUDIO 1" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_AAUDIO 1" >>confdefs.h
 
                 SOURCES="$SOURCES $srcdir/src/audio/aaudio/*.c"
                 SUMMARY_audio="${SUMMARY_audio} aaudio"
@@ -28812,7 +29498,7 @@ printf "%s\n" "#define SDL_AUDIO_DRIVER_AAUDIO 1" >>confdefs.h
             linux)
                 if test "x$ac_cv_header_linux_input_h" = xyes; then
 
-printf "%s\n" "#define SDL_JOYSTICK_LINUX 1" >>confdefs.h
+printf '%s\n' "#define SDL_JOYSTICK_LINUX 1" >>confdefs.h
 
                     SOURCES="$SOURCES $srcdir/src/joystick/linux/*.c"
                     SOURCES="$SOURCES $srcdir/src/joystick/steam/*.c"
@@ -28822,7 +29508,7 @@ printf "%s\n" "#define SDL_JOYSTICK_LINUX 1" >>confdefs.h
             freebsd)
                 if test x$use_input_events = xyes -a x$ac_cv_header_linux_input_h = xyes; then
 
-printf "%s\n" "#define SDL_JOYSTICK_LINUX 1" >>confdefs.h
+printf '%s\n' "#define SDL_JOYSTICK_LINUX 1" >>confdefs.h
 
                     SOURCES="$SOURCES $srcdir/src/joystick/linux/*.c"
                     SOURCES="$SOURCES $srcdir/src/joystick/steam/*.c"
@@ -28831,7 +29517,7 @@ printf "%s\n" "#define SDL_JOYSTICK_LINUX 1" >>confdefs.h
             ;;
             android)
 
-printf "%s\n" "#define SDL_JOYSTICK_ANDROID 1" >>confdefs.h
+printf '%s\n' "#define SDL_JOYSTICK_ANDROID 1" >>confdefs.h
 
                 SOURCES="$SOURCES $srcdir/src/joystick/android/*.c"
                 SOURCES="$SOURCES $srcdir/src/joystick/steam/*.c"
@@ -28845,7 +29531,7 @@ printf "%s\n" "#define SDL_JOYSTICK_ANDROID 1" >>confdefs.h
             linux|freebsd)
                 if test x$use_input_events = xyes; then
 
-printf "%s\n" "#define SDL_HAPTIC_LINUX 1" >>confdefs.h
+printf '%s\n' "#define SDL_HAPTIC_LINUX 1" >>confdefs.h
 
                     SOURCES="$SOURCES $srcdir/src/haptic/linux/*.c"
                     have_haptic=yes
@@ -28853,7 +29539,7 @@ printf "%s\n" "#define SDL_HAPTIC_LINUX 1" >>confdefs.h
             ;;
             android)
 
-printf "%s\n" "#define SDL_HAPTIC_ANDROID 1" >>confdefs.h
+printf '%s\n' "#define SDL_HAPTIC_ANDROID 1" >>confdefs.h
 
                 SOURCES="$SOURCES $srcdir/src/haptic/android/*.c"
                 have_haptic=yes
@@ -28865,7 +29551,7 @@ printf "%s\n" "#define SDL_HAPTIC_ANDROID 1" >>confdefs.h
           case $ARCH in
             android)
 
-printf "%s\n" "#define SDL_SENSOR_ANDROID 1" >>confdefs.h
+printf '%s\n' "#define SDL_SENSOR_ANDROID 1" >>confdefs.h
 
                 SOURCES="$SOURCES $srcdir/src/sensor/android/*.c"
                 have_sensor=yes
@@ -28877,14 +29563,14 @@ printf "%s\n" "#define SDL_SENSOR_ANDROID 1" >>confdefs.h
              case $ARCH in
                linux)
 
-printf "%s\n" "#define SDL_POWER_LINUX 1" >>confdefs.h
+printf '%s\n' "#define SDL_POWER_LINUX 1" >>confdefs.h
 
                    SOURCES="$SOURCES $srcdir/src/power/linux/*.c"
                    have_power=yes
                ;;
                android)
 
-printf "%s\n" "#define SDL_POWER_ANDROID 1" >>confdefs.h
+printf '%s\n' "#define SDL_POWER_ANDROID 1" >>confdefs.h
 
                    SOURCES="$SOURCES $srcdir/src/power/android/*.c"
                    have_power=yes
@@ -28896,14 +29582,14 @@ printf "%s\n" "#define SDL_POWER_ANDROID 1" >>confdefs.h
              case $ARCH in
                android)
 
-printf "%s\n" "#define SDL_FILESYSTEM_ANDROID 1" >>confdefs.h
+printf '%s\n' "#define SDL_FILESYSTEM_ANDROID 1" >>confdefs.h
 
                    SOURCES="$SOURCES $srcdir/src/filesystem/android/*.c"
                    have_filesystem=yes
                ;;
                *)
 
-printf "%s\n" "#define SDL_FILESYSTEM_UNIX 1" >>confdefs.h
+printf '%s\n' "#define SDL_FILESYSTEM_UNIX 1" >>confdefs.h
 
                    SOURCES="$SOURCES $srcdir/src/filesystem/unix/*.c"
                    have_filesystem=yes
@@ -28913,7 +29599,7 @@ printf "%s\n" "#define SDL_FILESYSTEM_UNIX 1" >>confdefs.h
         # Set up files for the timer library
         if test x$enable_timers = xyes; then
 
-printf "%s\n" "#define SDL_TIMER_UNIX 1" >>confdefs.h
+printf '%s\n' "#define SDL_TIMER_UNIX 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
             have_timers=yes
@@ -28982,7 +29668,7 @@ printf "%s\n" "#define SDL_TIMER_UNIX 1" >>confdefs.h
         # Set up files for the video library
         if test x$enable_video = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_WINDOWS 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_WINDOWS 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/video/windows/*.c"
             have_video=yes
@@ -28990,25 +29676,26 @@ printf "%s\n" "#define SDL_VIDEO_DRIVER_WINDOWS 1" >>confdefs.h
 if test ${enable_render_d3d+y}
 then :
   enableval=$enable_render_d3d;
-else $as_nop
-  enable_render_d3d=yes
+else case e in #(
+  e) enable_render_d3d=yes ;;
+esac
 fi
 
             if test x$enable_render_d3d = xyes -a x$have_d3d = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_RENDER_D3D 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_RENDER_D3D 1" >>confdefs.h
 
                 SUMMARY_video="${SUMMARY_video} d3d9"
             fi
             if test x$enable_render_d3d = xyes -a x$have_d3d11 = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_RENDER_D3D11 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_RENDER_D3D11 1" >>confdefs.h
 
                 SUMMARY_video="${SUMMARY_video} d3d11"
             fi
             if test x$enable_render_d3d = xyes -a x$have_d3d12 = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_RENDER_D3D12 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_RENDER_D3D12 1" >>confdefs.h
 
                 SUMMARY_video="${SUMMARY_video} d3d12"
             fi
@@ -29016,20 +29703,20 @@ printf "%s\n" "#define SDL_VIDEO_RENDER_D3D12 1" >>confdefs.h
         # Set up files for the audio library
         if test x$enable_audio = xyes; then
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_WINMM 1" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_WINMM 1" >>confdefs.h
 
             SUMMARY_audio="${SUMMARY_audio} winmm"
             SOURCES="$SOURCES $srcdir/src/audio/winmm/*.c"
             if test x$have_dsound = xyes; then
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_DSOUND 1" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_DSOUND 1" >>confdefs.h
 
                 SUMMARY_audio="${SUMMARY_audio} directsound"
                 SOURCES="$SOURCES $srcdir/src/audio/directsound/*.c"
             fi
             if test x$have_wasapi = xyes -a x$enable_wasapi = xyes; then
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_WASAPI 1" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_WASAPI 1" >>confdefs.h
 
                 SUMMARY_audio="${SUMMARY_audio} wasapi"
                 SOURCES="$SOURCES $srcdir/src/audio/wasapi/*.c"
@@ -29039,22 +29726,22 @@ printf "%s\n" "#define SDL_AUDIO_DRIVER_WASAPI 1" >>confdefs.h
         # Set up files for the joystick library
         if test x$enable_joystick = xyes; then
 
-printf "%s\n" "#define SDL_JOYSTICK_RAWINPUT 1" >>confdefs.h
+printf '%s\n' "#define SDL_JOYSTICK_RAWINPUT 1" >>confdefs.h
 
             if test x$have_dinput = xyes -o x$have_xinput = xyes -o x$have_wgi = xyes; then
                 if test x$have_xinput = xyes; then
 
-printf "%s\n" "#define SDL_JOYSTICK_XINPUT 1" >>confdefs.h
+printf '%s\n' "#define SDL_JOYSTICK_XINPUT 1" >>confdefs.h
 
                 fi
                 if test x$have_wgi = xyes; then
 
-printf "%s\n" "#define SDL_JOYSTICK_WGI 1" >>confdefs.h
+printf '%s\n' "#define SDL_JOYSTICK_WGI 1" >>confdefs.h
 
                 fi
                 if test x$have_dinput = xyes; then
 
-printf "%s\n" "#define SDL_JOYSTICK_DINPUT 1" >>confdefs.h
+printf '%s\n' "#define SDL_JOYSTICK_DINPUT 1" >>confdefs.h
 
                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldinput8 -ldxguid -ldxerr8"
                 fi
@@ -29066,12 +29753,12 @@ printf "%s\n" "#define SDL_JOYSTICK_DINPUT 1" >>confdefs.h
             if test x$have_dinput = xyes -o x$have_xinput = xyes; then
                 if test x$have_xinput = xyes; then
 
-printf "%s\n" "#define SDL_HAPTIC_XINPUT 1" >>confdefs.h
+printf '%s\n' "#define SDL_HAPTIC_XINPUT 1" >>confdefs.h
 
                 fi
                 if test x$have_dinput = xyes; then
 
-printf "%s\n" "#define SDL_HAPTIC_DINPUT 1" >>confdefs.h
+printf '%s\n' "#define SDL_HAPTIC_DINPUT 1" >>confdefs.h
 
                 fi
                 SOURCES="$SOURCES $srcdir/src/haptic/windows/*.c"
@@ -29083,18 +29770,19 @@ printf "%s\n" "#define SDL_HAPTIC_DINPUT 1" >>confdefs.h
 if test "x$ac_cv_header_sensorsapi_h" = xyes
 then :
   have_winsensors=yes
-else $as_nop
-  have_winsensors=no
+else case e in #(
+  e) have_winsensors=no ;;
+esac
 fi
 
         if test x$have_winsensors = xyes; then
 
-printf "%s\n" "#define HAVE_SENSORSAPI_H 1" >>confdefs.h
+printf '%s\n' "#define HAVE_SENSORSAPI_H 1" >>confdefs.h
 
         fi
         if test x$enable_sensor = xyes -a x$have_winsensors = xyes; then
 
-printf "%s\n" "#define SDL_SENSOR_WINDOWS 1" >>confdefs.h
+printf '%s\n' "#define SDL_SENSOR_WINDOWS 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/sensor/windows/*.c"
             have_sensor=yes
@@ -29102,7 +29790,7 @@ printf "%s\n" "#define SDL_SENSOR_WINDOWS 1" >>confdefs.h
         # Set up files for the power library
         if test x$enable_power = xyes; then
 
-printf "%s\n" "#define SDL_POWER_WINDOWS 1" >>confdefs.h
+printf '%s\n' "#define SDL_POWER_WINDOWS 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/power/windows/SDL_syspower.c"
             have_power=yes
@@ -29110,7 +29798,7 @@ printf "%s\n" "#define SDL_POWER_WINDOWS 1" >>confdefs.h
         # Set up files for the filesystem library
         if test x$enable_filesystem = xyes; then
 
-printf "%s\n" "#define SDL_FILESYSTEM_WINDOWS 1" >>confdefs.h
+printf '%s\n' "#define SDL_FILESYSTEM_WINDOWS 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/filesystem/windows/SDL_sysfilesystem.c"
             have_filesystem=yes
@@ -29118,10 +29806,10 @@ printf "%s\n" "#define SDL_FILESYSTEM_WINDOWS 1" >>confdefs.h
         # Set up files for the thread library
         if test x$enable_threads = xyes; then
 
-printf "%s\n" "#define SDL_THREAD_GENERIC_COND_SUFFIX 1" >>confdefs.h
+printf '%s\n' "#define SDL_THREAD_GENERIC_COND_SUFFIX 1" >>confdefs.h
 
 
-printf "%s\n" "#define SDL_THREAD_WINDOWS 1" >>confdefs.h
+printf '%s\n' "#define SDL_THREAD_WINDOWS 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/thread/windows/*.c"
             SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syscond.c"
@@ -29130,7 +29818,7 @@ printf "%s\n" "#define SDL_THREAD_WINDOWS 1" >>confdefs.h
         # Set up files for the timer library
         if test x$enable_timers = xyes; then
 
-printf "%s\n" "#define SDL_TIMER_WINDOWS 1" >>confdefs.h
+printf '%s\n' "#define SDL_TIMER_WINDOWS 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/timer/windows/*.c"
             have_timers=yes
@@ -29138,7 +29826,7 @@ printf "%s\n" "#define SDL_TIMER_WINDOWS 1" >>confdefs.h
         # Set up files for the shared object loading library
         if test x$enable_loadso = xyes; then
 
-printf "%s\n" "#define SDL_LOADSO_WINDOWS 1" >>confdefs.h
+printf '%s\n' "#define SDL_LOADSO_WINDOWS 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/loadso/windows/*.c"
         fi
@@ -29158,13 +29846,13 @@ printf "%s\n" "#define SDL_LOADSO_WINDOWS 1" >>confdefs.h
 
         # Check to see if this is a mingw or cygwin build
         have_mingw32=
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for main in -lmingw32" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for main in -lmingw32" >&5
 printf %s "checking for main in -lmingw32... " >&6; }
 if test ${ac_cv_lib_mingw32_main+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lmingw32  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -29181,15 +29869,17 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_mingw32_main=yes
-else $as_nop
-  ac_cv_lib_mingw32_main=no
+else case e in #(
+  e) ac_cv_lib_mingw32_main=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_mingw32_main" >&5
-printf "%s\n" "$ac_cv_lib_mingw32_main" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_mingw32_main" >&5
+printf '%s\n' "$ac_cv_lib_mingw32_main" >&6; }
 if test "x$ac_cv_lib_mingw32_main" = xyes
 then :
   have_mingw32=yes
@@ -29222,7 +29912,7 @@ fi
         # Set up files for the audio library
         if test x$enable_audio = xyes; then
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_HAIKU 1" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_HAIKU 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/audio/haiku/*.cc"
             SUMMARY_audio="${SUMMARY_audio} haiku"
@@ -29231,7 +29921,7 @@ printf "%s\n" "#define SDL_AUDIO_DRIVER_HAIKU 1" >>confdefs.h
         # Set up files for the joystick library
         if test x$enable_joystick = xyes; then
 
-printf "%s\n" "#define SDL_JOYSTICK_HAIKU 1" >>confdefs.h
+printf '%s\n' "#define SDL_JOYSTICK_HAIKU 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/joystick/haiku/*.cc"
             have_joystick=yes
@@ -29239,7 +29929,7 @@ printf "%s\n" "#define SDL_JOYSTICK_HAIKU 1" >>confdefs.h
         # Set up files for the timer library
         if test x$enable_timers = xyes; then
 
-printf "%s\n" "#define SDL_TIMER_HAIKU 1" >>confdefs.h
+printf '%s\n' "#define SDL_TIMER_HAIKU 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/timer/haiku/*.c"
             have_timers=yes
@@ -29247,7 +29937,7 @@ printf "%s\n" "#define SDL_TIMER_HAIKU 1" >>confdefs.h
         # Set up files for the system power library
         if test x$enable_power = xyes; then
 
-printf "%s\n" "#define SDL_POWER_HAIKU 1" >>confdefs.h
+printf '%s\n' "#define SDL_POWER_HAIKU 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/power/haiku/*.c"
             have_power=yes
@@ -29255,7 +29945,7 @@ printf "%s\n" "#define SDL_POWER_HAIKU 1" >>confdefs.h
         # Set up files for the system filesystem library
         if test x$enable_filesystem = xyes; then
 
-printf "%s\n" "#define SDL_FILESYSTEM_HAIKU 1" >>confdefs.h
+printf '%s\n' "#define SDL_FILESYSTEM_HAIKU 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/filesystem/haiku/*.cc"
             have_filesystem=yes
@@ -29304,7 +29994,7 @@ printf "%s\n" "#define SDL_FILESYSTEM_HAIKU 1" >>confdefs.h
         # Set up files for the audio library
         if test x$enable_audio = xyes; then
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_COREAUDIO 1" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_COREAUDIO 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.m"
             SUMMARY_audio="${SUMMARY_audio} coreaudio"
@@ -29313,7 +30003,7 @@ printf "%s\n" "#define SDL_AUDIO_DRIVER_COREAUDIO 1" >>confdefs.h
         # Set up files for the joystick library
         if test x$enable_joystick = xyes; then
 
-printf "%s\n" "#define SDL_JOYSTICK_MFI 1" >>confdefs.h
+printf '%s\n' "#define SDL_JOYSTICK_MFI 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/joystick/iphoneos/*.m"
             SOURCES="$SOURCES $srcdir/src/joystick/steam/*.c"
@@ -29331,7 +30021,7 @@ printf "%s\n" "#define SDL_JOYSTICK_MFI 1" >>confdefs.h
         # Set up files for the sensor library
         if test x$enable_sensor = xyes; then
 
-printf "%s\n" "#define SDL_SENSOR_COREMOTION 1" >>confdefs.h
+printf '%s\n' "#define SDL_SENSOR_COREMOTION 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/sensor/coremotion/*.m"
             have_sensor=yes
@@ -29339,7 +30029,7 @@ printf "%s\n" "#define SDL_SENSOR_COREMOTION 1" >>confdefs.h
         # Set up files for the power library
         if test x$enable_power = xyes; then
 
-printf "%s\n" "#define SDL_POWER_UIKIT 1" >>confdefs.h
+printf '%s\n' "#define SDL_POWER_UIKIT 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/power/uikit/*.m"
             have_power=yes
@@ -29352,14 +30042,14 @@ printf "%s\n" "#define SDL_POWER_UIKIT 1" >>confdefs.h
         # Set up additional files for the file library
         if test x$enable_file = xyes; then
 
-printf "%s\n" "#define SDL_FILESYSTEM_COCOA 1" >>confdefs.h
+printf '%s\n' "#define SDL_FILESYSTEM_COCOA 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
         fi
         # Set up files for the timer library
         if test x$enable_timers = xyes; then
 
-printf "%s\n" "#define SDL_TIMER_UNIX 1" >>confdefs.h
+printf '%s\n' "#define SDL_TIMER_UNIX 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
             have_timers=yes
@@ -29368,19 +30058,19 @@ printf "%s\n" "#define SDL_TIMER_UNIX 1" >>confdefs.h
         SOURCES="$SOURCES $srcdir/src/core/unix/*.c"
         # The iOS platform requires special setup.
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_UIKIT 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_UIKIT 1" >>confdefs.h
 
 
-printf "%s\n" "#define SDL_VIDEO_OPENGL_ES2 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_OPENGL_ES2 1" >>confdefs.h
 
 
-printf "%s\n" "#define SDL_VIDEO_OPENGL_ES 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_OPENGL_ES 1" >>confdefs.h
 
 
-printf "%s\n" "#define SDL_VIDEO_RENDER_OGL_ES 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_RENDER_OGL_ES 1" >>confdefs.h
 
 
-printf "%s\n" "#define SDL_VIDEO_RENDER_OGL_ES2 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_RENDER_OGL_ES2 1" >>confdefs.h
 
         SOURCES="$SOURCES $srcdir/src/video/uikit/*.m"
         SUMMARY_video="${SUMMARY_video} uikit"
@@ -29450,7 +30140,7 @@ printf "%s\n" "#define SDL_VIDEO_RENDER_OGL_ES2 1" >>confdefs.h
         # Set up files for the audio library
         if test x$enable_audio = xyes; then
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_COREAUDIO 1" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_COREAUDIO 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.m"
             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio -Wl,-framework,AudioToolbox"
@@ -29460,7 +30150,7 @@ printf "%s\n" "#define SDL_AUDIO_DRIVER_COREAUDIO 1" >>confdefs.h
         # Set up files for the joystick library
         if test x$enable_joystick = xyes; then
 
-printf "%s\n" "#define SDL_JOYSTICK_IOKIT 1" >>confdefs.h
+printf '%s\n' "#define SDL_JOYSTICK_IOKIT 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/joystick/darwin/*.c"
             SOURCES="$SOURCES $srcdir/src/joystick/iphoneos/*.m"
@@ -29470,7 +30160,7 @@ printf "%s\n" "#define SDL_JOYSTICK_IOKIT 1" >>confdefs.h
         # Set up files for the haptic library
         if test x$enable_haptic = xyes; then
 
-printf "%s\n" "#define SDL_HAPTIC_IOKIT 1" >>confdefs.h
+printf '%s\n' "#define SDL_HAPTIC_IOKIT 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
@@ -29479,7 +30169,7 @@ printf "%s\n" "#define SDL_HAPTIC_IOKIT 1" >>confdefs.h
         # Set up files for the power library
         if test x$enable_power = xyes; then
 
-printf "%s\n" "#define SDL_POWER_MACOSX 1" >>confdefs.h
+printf '%s\n' "#define SDL_POWER_MACOSX 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/power/macosx/*.c"
             have_power=yes
@@ -29487,7 +30177,7 @@ printf "%s\n" "#define SDL_POWER_MACOSX 1" >>confdefs.h
         # Set up files for the filesystem library
         if test x$enable_filesystem = xyes; then
 
-printf "%s\n" "#define SDL_FILESYSTEM_COCOA 1" >>confdefs.h
+printf '%s\n' "#define SDL_FILESYSTEM_COCOA 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
             have_filesystem=yes
@@ -29495,7 +30185,7 @@ printf "%s\n" "#define SDL_FILESYSTEM_COCOA 1" >>confdefs.h
         # Set up files for the timer library
         if test x$enable_timers = xyes; then
 
-printf "%s\n" "#define SDL_TIMER_UNIX 1" >>confdefs.h
+printf '%s\n' "#define SDL_TIMER_UNIX 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
             have_timers=yes
@@ -29530,7 +30220,7 @@ printf "%s\n" "#define SDL_TIMER_UNIX 1" >>confdefs.h
         # Set up files for the timer library
         if test x$enable_timers = xyes; then
 
-printf "%s\n" "#define SDL_TIMER_UNIX 1" >>confdefs.h
+printf '%s\n' "#define SDL_TIMER_UNIX 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
             have_timers=yes
@@ -29538,7 +30228,7 @@ printf "%s\n" "#define SDL_TIMER_UNIX 1" >>confdefs.h
 
         if test x$enable_filesystem = xyes; then
 
-printf "%s\n" "#define SDL_FILESYSTEM_NACL 1" >>confdefs.h
+printf '%s\n' "#define SDL_FILESYSTEM_NACL 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/filesystem/nacl/*.c"
             have_filesystem=yes
@@ -29547,7 +30237,7 @@ printf "%s\n" "#define SDL_FILESYSTEM_NACL 1" >>confdefs.h
     *-*-emscripten* )
         if test x$enable_video = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_EMSCRIPTEN 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_EMSCRIPTEN 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/video/emscripten/*.c"
             have_video=yes
@@ -29556,7 +30246,7 @@ printf "%s\n" "#define SDL_VIDEO_DRIVER_EMSCRIPTEN 1" >>confdefs.h
 
         if test x$enable_audio = xyes; then
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_EMSCRIPTEN 1" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_EMSCRIPTEN 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/audio/emscripten/*.c"
             have_audio=yes
@@ -29584,7 +30274,7 @@ printf "%s\n" "#define SDL_AUDIO_DRIVER_EMSCRIPTEN 1" >>confdefs.h
          # Set up files for the power library
         if test x$enable_power = xyes; then
 
-printf "%s\n" "#define SDL_POWER_EMSCRIPTEN 1" >>confdefs.h
+printf '%s\n' "#define SDL_POWER_EMSCRIPTEN 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/power/emscripten/*.c"
             have_power=yes
@@ -29593,7 +30283,7 @@ printf "%s\n" "#define SDL_POWER_EMSCRIPTEN 1" >>confdefs.h
         # Set up files for the joystick library
         if test x$enable_joystick = xyes; then
 
-printf "%s\n" "#define SDL_JOYSTICK_EMSCRIPTEN 1" >>confdefs.h
+printf '%s\n' "#define SDL_JOYSTICK_EMSCRIPTEN 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/joystick/emscripten/*.c"
             have_joystick=yes
@@ -29602,7 +30292,7 @@ printf "%s\n" "#define SDL_JOYSTICK_EMSCRIPTEN 1" >>confdefs.h
         # Set up files for the filesystem library
         if test x$enable_filesystem = xyes; then
 
-printf "%s\n" "#define SDL_FILESYSTEM_EMSCRIPTEN 1" >>confdefs.h
+printf '%s\n' "#define SDL_FILESYSTEM_EMSCRIPTEN 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/filesystem/emscripten/*.c"
             have_filesystem=yes
@@ -29610,7 +30300,7 @@ printf "%s\n" "#define SDL_FILESYSTEM_EMSCRIPTEN 1" >>confdefs.h
         # Set up files for the timer library
         if test x$enable_timers = xyes; then
 
-printf "%s\n" "#define SDL_TIMER_UNIX 1" >>confdefs.h
+printf '%s\n' "#define SDL_TIMER_UNIX 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
             have_timers=yes
@@ -29644,7 +30334,7 @@ printf "%s\n" "#define SDL_TIMER_UNIX 1" >>confdefs.h
         # Set up files for the video library
         if test x$enable_video = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_RISCOS 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_RISCOS 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/video/riscos/*.c"
             have_video=yes
@@ -29653,7 +30343,7 @@ printf "%s\n" "#define SDL_VIDEO_DRIVER_RISCOS 1" >>confdefs.h
         # Set up files for the filesystem library
         if test x$enable_filesystem = xyes; then
 
-printf "%s\n" "#define SDL_FILESYSTEM_RISCOS 1" >>confdefs.h
+printf '%s\n' "#define SDL_FILESYSTEM_RISCOS 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/filesystem/riscos/*.c"
             have_filesystem=yes
@@ -29661,7 +30351,7 @@ printf "%s\n" "#define SDL_FILESYSTEM_RISCOS 1" >>confdefs.h
         # Set up files for the timer library
         if test x$enable_timers = xyes; then
 
-printf "%s\n" "#define SDL_TIMER_UNIX 1" >>confdefs.h
+printf '%s\n' "#define SDL_TIMER_UNIX 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
             have_timers=yes
@@ -29703,7 +30393,7 @@ printf "%s\n" "#define SDL_TIMER_UNIX 1" >>confdefs.h
         # Set up files for the video library
         if test x$enable_video = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_OS2 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_OS2 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/video/os2/*.c"
             have_video=yes
@@ -29712,7 +30402,7 @@ printf "%s\n" "#define SDL_VIDEO_DRIVER_OS2 1" >>confdefs.h
         # Set up files for the audio library
         if test x$enable_audio = xyes; then
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_OS2 1" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_OS2 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/audio/os2/*.c"
             have_audio=yes
@@ -29722,7 +30412,7 @@ printf "%s\n" "#define SDL_AUDIO_DRIVER_OS2 1" >>confdefs.h
         # Set up files for the thread library
         if test x$enable_threads = xyes; then
 
-printf "%s\n" "#define SDL_THREAD_OS2 1" >>confdefs.h
+printf '%s\n' "#define SDL_THREAD_OS2 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/thread/os2/*.c"
             SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syscond.c"
@@ -29731,7 +30421,7 @@ printf "%s\n" "#define SDL_THREAD_OS2 1" >>confdefs.h
         # Set up files for the timer library
         if test x$enable_timers = xyes; then
 
-printf "%s\n" "#define SDL_TIMER_OS2 1" >>confdefs.h
+printf '%s\n' "#define SDL_TIMER_OS2 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/timer/os2/*.c"
             have_timers=yes
@@ -29739,7 +30429,7 @@ printf "%s\n" "#define SDL_TIMER_OS2 1" >>confdefs.h
         # Set up files for the shared object loading library
         if test x$enable_loadso = xyes; then
 
-printf "%s\n" "#define SDL_LOADSO_OS2 1" >>confdefs.h
+printf '%s\n' "#define SDL_LOADSO_OS2 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/loadso/os2/*.c"
             have_loadso=yes
@@ -29747,7 +30437,7 @@ printf "%s\n" "#define SDL_LOADSO_OS2 1" >>confdefs.h
         # Set up files for the filesystem library
         if test x$enable_filesystem = xyes; then
 
-printf "%s\n" "#define SDL_FILESYSTEM_OS2 1" >>confdefs.h
+printf '%s\n' "#define SDL_FILESYSTEM_OS2 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/filesystem/os2/*.c"
             have_filesystem=yes
@@ -29755,7 +30445,7 @@ printf "%s\n" "#define SDL_FILESYSTEM_OS2 1" >>confdefs.h
         # Set up files for the joystick library
         if test x$enable_joystick = xyes; then
 
-printf "%s\n" "#define SDL_JOYSTICK_OS2 1" >>confdefs.h
+printf '%s\n' "#define SDL_JOYSTICK_OS2 1" >>confdefs.h
 
             SOURCES="$SOURCES $srcdir/src/joystick/os2/*.c"
             have_joystick=yes
@@ -29771,7 +30461,7 @@ esac
 CheckVirtualJoystick
 
 # Check whether to install sdl2-config
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to install sdl2-config" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking whether to install sdl2-config" >&5
 printf %s "checking whether to install sdl2-config... " >&6; }
 # Check whether --enable-sdl2-config was given.
 if test ${enable_sdl2_config+y}
@@ -29781,16 +30471,17 @@ then :
         no) enable_sdl2_config="FALSE" ;;
         *) as_fn_error $? "bad value '${enableval}' for --enable-sdl2-config" "$LINENO" 5 ;;
     esac
-else $as_nop
-  enable_sdl2_config="TRUE"
+else case e in #(
+  e) enable_sdl2_config="TRUE" ;;
+esac
 fi
 
 if test "$enable_sdl2_config" = "TRUE"; then
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf '%s\n' "yes" >&6; }
 else
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 INSTALL_SDL2_CONFIG=$enable_sdl2_config
 
@@ -29799,8 +30490,9 @@ INSTALL_SDL2_CONFIG=$enable_sdl2_config
 if test ${enable_vendor_info+y}
 then :
   enableval=$enable_vendor_info; enable_vendor_info="$enableval"
-else $as_nop
-  enable_vendor_info=
+else case e in #(
+  e) enable_vendor_info= ;;
+esac
 fi
 
 if test "$enable_vendor_info" = no
@@ -29815,7 +30507,7 @@ SDL_VENDOR_INFO=$enable_vendor_info
 if test x$have_audio != xyes; then
     if test x$enable_audio = xyes; then
 
-printf "%s\n" "#define SDL_AUDIO_DRIVER_DUMMY 1" >>confdefs.h
+printf '%s\n' "#define SDL_AUDIO_DRIVER_DUMMY 1" >>confdefs.h
 
     fi
     SOURCES="$SOURCES $srcdir/src/audio/dummy/*.c"
@@ -29823,7 +30515,7 @@ fi
 if test x$have_video != xyes; then
     if test x$enable_video = xyes; then
 
-printf "%s\n" "#define SDL_VIDEO_DRIVER_DUMMY 1" >>confdefs.h
+printf '%s\n' "#define SDL_VIDEO_DRIVER_DUMMY 1" >>confdefs.h
 
     fi
     SOURCES="$SOURCES $srcdir/src/video/dummy/*.c"
@@ -29831,7 +30523,7 @@ fi
 if test x$have_misc != xyes; then
     if test x$enable_misc = xyes; then
 
-printf "%s\n" "#define SDL_MISC_DUMMY 1" >>confdefs.h
+printf '%s\n' "#define SDL_MISC_DUMMY 1" >>confdefs.h
 
     fi
     SOURCES="$SOURCES $srcdir/src/misc/dummy/*.c"
@@ -29839,7 +30531,7 @@ fi
 if test x$have_locale != xyes; then
     if test x$enable_locale = xyes; then
 
-printf "%s\n" "#define SDL_LOCALE_DUMMY 1" >>confdefs.h
+printf '%s\n' "#define SDL_LOCALE_DUMMY 1" >>confdefs.h
 
     fi
     SOURCES="$SOURCES $srcdir/src/locale/dummy/*.c"
@@ -29847,7 +30539,7 @@ fi
 if test x$have_joystick != xyes; then
     if test x$enable_joystick = xyes; then
 
-printf "%s\n" "#define SDL_JOYSTICK_DUMMY 1" >>confdefs.h
+printf '%s\n' "#define SDL_JOYSTICK_DUMMY 1" >>confdefs.h
 
     fi
     SOURCES="$SOURCES $srcdir/src/joystick/dummy/*.c"
@@ -29855,7 +30547,7 @@ fi
 if test x$have_haptic != xyes; then
     if test x$enable_haptic = xyes; then
 
-printf "%s\n" "#define SDL_HAPTIC_DUMMY 1" >>confdefs.h
+printf '%s\n' "#define SDL_HAPTIC_DUMMY 1" >>confdefs.h
 
     fi
     SOURCES="$SOURCES $srcdir/src/haptic/dummy/*.c"
@@ -29863,7 +30555,7 @@ fi
 if test x$have_sensor != xyes; then
     if test x$enable_sensor = xyes; then
 
-printf "%s\n" "#define SDL_SENSOR_DUMMY 1" >>confdefs.h
+printf '%s\n' "#define SDL_SENSOR_DUMMY 1" >>confdefs.h
 
     fi
     SOURCES="$SOURCES $srcdir/src/sensor/dummy/*.c"
@@ -29871,7 +30563,7 @@ fi
 if test x$have_threads != xyes; then
     if test x$enable_threads = xyes; then
 
-printf "%s\n" "#define SDL_THREADS_DISABLED 1" >>confdefs.h
+printf '%s\n' "#define SDL_THREADS_DISABLED 1" >>confdefs.h
 
     fi
     SOURCES="$SOURCES $srcdir/src/thread/generic/*.c"
@@ -29879,7 +30571,7 @@ fi
 if test x$have_timers != xyes; then
     if test x$enable_timers = xyes; then
 
-printf "%s\n" "#define SDL_TIMER_DUMMY 1" >>confdefs.h
+printf '%s\n' "#define SDL_TIMER_DUMMY 1" >>confdefs.h
 
     fi
     SOURCES="$SOURCES $srcdir/src/timer/dummy/*.c"
@@ -29887,7 +30579,7 @@ fi
 if test x$have_filesystem != xyes; then
     if test x$enable_filesystem = xyes; then
 
-printf "%s\n" "#define SDL_FILESYSTEM_DUMMY 1" >>confdefs.h
+printf '%s\n' "#define SDL_FILESYSTEM_DUMMY 1" >>confdefs.h
 
     fi
     SOURCES="$SOURCES $srcdir/src/filesystem/dummy/*.c"
@@ -29895,7 +30587,7 @@ fi
 if test x$have_loadso != xyes; then
     if test x$enable_loadso = xyes; then
 
-printf "%s\n" "#define SDL_LOADSO_DUMMY 1" >>confdefs.h
+printf '%s\n' "#define SDL_LOADSO_DUMMY 1" >>confdefs.h
 
     fi
     SOURCES="$SOURCES $srcdir/src/loadso/dummy/*.c"
@@ -29968,7 +30660,7 @@ if test "x$enable_rpath" = "xyes" -a "x$enable_shared" = "xyes"; then
   if test $ARCH = bsdi -o $ARCH = freebsd -o $ARCH = linux -o $ARCH = netbsd; then
     SDL_RLD_FLAGS="-Wl,-rpath,\${libdir}"
 
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for linker option --enable-new-dtags" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for linker option --enable-new-dtags" >&5
 printf %s "checking for linker option --enable-new-dtags... " >&6; }
     have_enable_new_dtags=no
     save_LDFLAGS="$LDFLAGS"
@@ -29994,8 +30686,8 @@ fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
     LDFLAGS="$save_LDFLAGS"
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_enable_new_dtags" >&5
-printf "%s\n" "$have_enable_new_dtags" >&6; }
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_enable_new_dtags" >&5
+printf '%s\n' "$have_enable_new_dtags" >&6; }
   fi
   if test $ARCH = solaris; then
     SDL_RLD_FLAGS="-R\${libdir}"
@@ -30244,50 +30936,13 @@ cat >confcache <<\_ACEOF
 # config.status only pays attention to the cache file if you give it
 # the --recheck option to rerun configure.
 #
-# `ac_cv_env_foo' variables (set or unset) will be overridden when
-# loading this file, other *unset* `ac_cv_foo' will be assigned the
+# 'ac_cv_env_foo' variables (set or unset) will be overridden when
+# loading this file, other *unset* 'ac_cv_foo' will be assigned the
 # following values.
 
 _ACEOF
 
-# The following way of writing the cache mishandles newlines in values,
-# but we know of no workaround that is simple, portable, and efficient.
-# So, we kill variables containing newlines.
-# Ultrix sh set writes to stderr and can't be redirected directly,
-# and sets the high bit in the cache file unless we assign to the vars.
-(
-  for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do
-    eval ac_val=\$$ac_var
-    case $ac_val in #(
-    *${as_nl}*)
-      case $ac_var in #(
-      *_cv_*) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
-printf "%s\n" "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
-      esac
-      case $ac_var in #(
-      _ | IFS | as_nl) ;; #(
-      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
-      *) { eval $ac_var=; unset $ac_var;} ;;
-      esac ;;
-    esac
-  done
-
-  (set) 2>&1 |
-    case $as_nl`(ac_space=' '; set) 2>&1` in #(
-    *${as_nl}ac_space=\ *)
-      # `set' does not quote correctly, so add quotes: double-quote
-      # substitution turns \\\\ into \\, and sed turns \\ into \.
-      sed -n \
-	"s/'/'\\\\''/g;
-	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
-      ;; #(
-    *)
-      # `set' quotes correctly as required by POSIX, so do not add quotes.
-      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
-      ;;
-    esac |
-    sort
-) |
+ac_cache_dump |
   sed '
      /^ac_cv_env_/b end
      t clear
@@ -30299,8 +30954,8 @@ printf "%s\n" "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;}
 if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
   if test -w "$cache_file"; then
     if test "x$cache_file" != "x/dev/null"; then
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
-printf "%s\n" "$as_me: updating cache $cache_file" >&6;}
+      { printf '%s\n' "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
+printf '%s\n' "$as_me: updating cache $cache_file" >&6;}
       if test ! -f "$cache_file" || test -h "$cache_file"; then
 	cat confcache >"$cache_file"
       else
@@ -30314,8 +30969,8 @@ printf "%s\n" "$as_me: updating cache $cache_file" >&6;}
       fi
     fi
   else
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
-printf "%s\n" "$as_me: not updating unwritable cache $cache_file" >&6;}
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
+printf '%s\n' "$as_me: not updating unwritable cache $cache_file" >&6;}
   fi
 fi
 rm -f confcache
@@ -30332,7 +30987,7 @@ U=
 for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
   # 1. Remove the extension, and $U if already installed.
   ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
-  ac_i=`printf "%s\n" "$ac_i" | sed "$ac_script"`
+  ac_i=`printf '%s\n' "$ac_i" | sed "$ac_script"`
   # 2. Prepend LIBOBJDIR.  When used with automake>=1.10 LIBOBJDIR
   #    will be set to the directory where LIBOBJS objects are built.
   as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext"
@@ -30343,15 +30998,29 @@ LIBOBJS=$ac_libobjs
 LTLIBOBJS=$ac_ltlibobjs
 
 
+# Check whether --enable-year2038 was given.
+if test ${enable_year2038+y}
+then :
+  enableval=$enable_year2038;
+fi
+
 
 : "${CONFIG_STATUS=./config.status}"
+case $CONFIG_STATUS in #(
+  -*) :
+    CONFIG_STATUS=./$CONFIG_STATUS ;; #(
+  */*) :
+     ;; #(
+  *) :
+    CONFIG_STATUS=./$CONFIG_STATUS ;;
+esac
+
 ac_write_fail=0
-ac_clean_files_save=$ac_clean_files
-ac_clean_files="$ac_clean_files $CONFIG_STATUS"
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
-printf "%s\n" "$as_me: creating $CONFIG_STATUS" >&6;}
+ac_clean_CONFIG_STATUS='"$CONFIG_STATUS"'
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
+printf '%s\n' "$as_me: creating $CONFIG_STATUS" >&6;}
 as_write_fail=0
-cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1
+cat >"$CONFIG_STATUS" <<_ASEOF || as_write_fail=1
 #! $SHELL
 # Generated by $as_me.
 # Run this file to recreate the current configuration.
@@ -30365,28 +31034,28 @@ ac_cs_silent=false
 SHELL=\${CONFIG_SHELL-$SHELL}
 export SHELL
 _ASEOF
-cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1
+cat >>"$CONFIG_STATUS" <<\_ASEOF || as_write_fail=1
 ## -------------------- ##
 ## M4sh Initialization. ##
 ## -------------------- ##
 
 # Be more Bourne compatible
 DUALCASE=1; export DUALCASE # for MKS sh
-as_nop=:
 if test ${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
 then :
   emulate sh
   NULLCMD=:
   # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
-  # is contrary to our usage.  Disable this feature.
+  # contradicts POSIX and common usage.  Disable this.
   alias -g '${1+"$@"}'='"$@"'
   setopt NO_GLOB_SUBST
-else $as_nop
-  case `(set -o) 2>/dev/null` in #(
+else case e in #(
+  e) case `(set -o) 2>/dev/null` in #(
   *posix*) :
     set -o posix ;; #(
   *) :
      ;;
+esac ;;
 esac
 fi
 
@@ -30458,13 +31127,13 @@ IFS=$as_save_IFS
 
      ;;
 esac
-# We did not find ourselves, most probably we were run as `sh COMMAND'
+# We did not find ourselves, most probably we were run as 'sh COMMAND'
 # in which case we are not to be found in the path.
 if test "x$as_myself" = x; then
   as_myself=$0
 fi
 if test ! -f "$as_myself"; then
-  printf "%s\n" "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  printf '%s\n' "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
   exit 1
 fi
 
@@ -30480,14 +31149,13 @@ as_fn_error ()
   as_status=$1; test $as_status -eq 0 && as_status=1
   if test "$4"; then
     as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
   fi
-  printf "%s\n" "$as_me: error: $2" >&2
+  printf '%s\n' "$as_me: error: $2" >&2
   as_fn_exit $as_status
 } # as_fn_error
 
 
-
 # as_fn_set_status STATUS
 # -----------------------
 # Set $? to STATUS, without forking.
@@ -30527,11 +31195,12 @@ then :
   {
     eval $1+=\$2
   }'
-else $as_nop
-  as_fn_append ()
+else case e in #(
+  e) as_fn_append ()
   {
     eval $1=\$$1\$2
-  }
+  } ;;
+esac
 fi # as_fn_append
 
 # as_fn_arith ARG...
@@ -30545,11 +31214,12 @@ then :
   {
     as_val=$(( $* ))
   }'
-else $as_nop
-  as_fn_arith ()
+else case e in #(
+  e) as_fn_arith ()
   {
     as_val=`expr "$@" || test $? -eq 1`
-  }
+  } ;;
+esac
 fi # as_fn_arith
 
 
@@ -30576,7 +31246,7 @@ as_me=`$as_basename -- "$0" ||
 $as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
 	 X"$0" : 'X\(//\)$' \| \
 	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
-printf "%s\n" X/"$0" |
+printf '%s\n' X/"$0" |
     sed '/^.*\/\([^/][^/]*\)\/*$/{
 	    s//\1/
 	    q
@@ -30598,29 +31268,6 @@ as_cr_Letters=$as_cr_letters$as_cr_LETTERS
 as_cr_digits='0123456789'
 as_cr_alnum=$as_cr_Letters$as_cr_digits
 
-
-# Determine whether it's possible to make 'echo' print without a newline.
-# These variables are no longer used directly by Autoconf, but are AC_SUBSTed
-# for compatibility with existing Makefiles.
-ECHO_C= ECHO_N= ECHO_T=
-case `echo -n x` in #(((((
--n*)
-  case `echo 'xy\c'` in
-  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
-  xy)  ECHO_C='\c';;
-  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
-       ECHO_T='	';;
-  esac;;
-*)
-  ECHO_N='-n';;
-esac
-
-# For backward compatibility with old third-party macros, we provide
-# the shell variables $as_echo and $as_echo_n.  New code should use
-# AS_ECHO(["message"]) and AS_ECHO_N(["message"]), respectively.
-as_echo='printf %s\n'
-as_echo_n='printf %s'
-
 rm -f conf$$ conf$$.exe conf$$.file
 if test -d conf$$.dir; then
   rm -f conf$$.dir/conf$$.file
@@ -30632,9 +31279,9 @@ if (echo >conf$$.file) 2>/dev/null; then
   if ln -s conf$$.file conf$$ 2>/dev/null; then
     as_ln_s='ln -s'
     # ... but there are two gotchas:
-    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
-    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
-    # In both cases, we have to default to `cp -pR'.
+    # 1) On MSYS, both 'ln -s file dir' and 'ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; 'ln -s' creates a wrapper executable.
+    # In both cases, we have to default to 'cp -pR'.
     ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
       as_ln_s='cp -pR'
   elif ln conf$$.file conf$$ 2>/dev/null; then
@@ -30662,7 +31309,7 @@ as_fn_mkdir_p ()
     as_dirs=
     while :; do
       case $as_dir in #(
-      *\'*) as_qdir=`printf "%s\n" "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *\'*) as_qdir=`printf '%s\n' "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
       *) as_qdir=$as_dir;;
       esac
       as_dirs="'$as_qdir' $as_dirs"
@@ -30671,7 +31318,7 @@ $as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
 	 X"$as_dir" : 'X\(//\)[^/]' \| \
 	 X"$as_dir" : 'X\(//\)$' \| \
 	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
-printf "%s\n" X"$as_dir" |
+printf '%s\n' X"$as_dir" |
     sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 	    s//\1/
 	    q
@@ -30715,26 +31362,28 @@ as_test_x='test -x'
 as_executable_p=as_fn_executable_p
 
 # Sed expression to map a string onto a valid CPP name.
-as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+as_sed_cpp="y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g"
+as_tr_cpp="eval sed '$as_sed_cpp'" # deprecated
 
 # Sed expression to map a string onto a valid variable name.
-as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+as_sed_sh="y%*+%pp%;s%[^_$as_cr_alnum]%_%g"
+as_tr_sh="eval sed '$as_sed_sh'" # deprecated
 
 
 exec 6>&1
-## ----------------------------------- ##
-## Main body of $CONFIG_STATUS script. ##
-## ----------------------------------- ##
+## ------------------------------------- ##
+## Main body of "$CONFIG_STATUS" script. ##
+## ------------------------------------- ##
 _ASEOF
-test $as_write_fail = 0 && chmod +x $CONFIG_STATUS || ac_write_fail=1
+test $as_write_fail = 0 && chmod +x "$CONFIG_STATUS" || ac_write_fail=1
 
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<\_ACEOF || ac_write_fail=1
 # Save the log message, to keep $0 and so on meaningful, and to
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
 This file was extended by $as_me, which was
-generated by GNU Autoconf 2.71.  Invocation command line was
+generated by GNU Autoconf 2.73.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
   CONFIG_HEADERS  = $CONFIG_HEADERS
@@ -30756,7 +31405,7 @@ case $ac_config_headers in *"
 esac
 
 
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<_ACEOF || ac_write_fail=1
 # Files that config.status was made for.
 config_files="$ac_config_files"
 config_headers="$ac_config_headers"
@@ -30764,9 +31413,9 @@ config_commands="$ac_config_commands"
 
 _ACEOF
 
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<\_ACEOF || ac_write_fail=1
 ac_cs_usage="\
-\`$as_me' instantiates files and other configuration actions
+'$as_me' instantiates files and other configuration actions
 from templates according to the current configuration.  Unless the files
 and actions are specified as TAGs, all are instantiated by default.
 
@@ -30796,16 +31445,16 @@ $config_commands
 Report bugs to the package provider."
 
 _ACEOF
-ac_cs_config=`printf "%s\n" "$ac_configure_args" | sed "$ac_safe_unquote"`
-ac_cs_config_escaped=`printf "%s\n" "$ac_cs_config" | sed "s/^ //; s/'/'\\\\\\\\''/g"`
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ac_cs_config=`printf '%s\n' "$ac_configure_args" | sed "$ac_safe_unquote"`
+ac_cs_config_escaped=`printf '%s\n' "$ac_cs_config" | sed "s/^ //; s/'/'\\\\\\\\''/g"`
+cat >>"$CONFIG_STATUS" <<_ACEOF || ac_write_fail=1
 ac_cs_config='$ac_cs_config_escaped'
 ac_cs_version="\\
 config.status
-configured by $0, generated by GNU Autoconf 2.71,
+configured by $0, generated by GNU Autoconf 2.73,
   with options \\"\$ac_cs_config\\"
 
-Copyright (C) 2021 Free Software Foundation, Inc.
+Copyright (C) 2026 Free Software Foundation, Inc.
 This config.status script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it."
 
@@ -30813,10 +31462,14 @@ ac_pwd='$ac_pwd'
 srcdir='$srcdir'
 INSTALL='$INSTALL'
 AWK='$AWK'
-test -n "\$AWK" || AWK=awk
+test -n "\$AWK" || {
+  awk '' </dev/null ||
+    as_fn_error \$? "try installing gawk"
+  AWK=awk
+}
 _ACEOF
 
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<\_ACEOF || ac_write_fail=1
 # The default lists apply if the user does not specify any file.
 ac_need_defaults=:
 while test $# != 0
@@ -30844,15 +31497,15 @@ do
   -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
     ac_cs_recheck=: ;;
   --version | --versio | --versi | --vers | --ver | --ve | --v | -V )
-    printf "%s\n" "$ac_cs_version"; exit ;;
+    printf '%s\n' "$ac_cs_version"; exit ;;
   --config | --confi | --conf | --con | --co | --c )
-    printf "%s\n" "$ac_cs_config"; exit ;;
+    printf '%s\n' "$ac_cs_config"; exit ;;
   --debug | --debu | --deb | --de | --d | -d )
     debug=: ;;
   --file | --fil | --fi | --f )
     $ac_shift
     case $ac_optarg in
-    *\'*) ac_optarg=`printf "%s\n" "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    *\'*) ac_optarg=`printf '%s\n' "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
     '') as_fn_error $? "missing file argument" ;;
     esac
     as_fn_append CONFIG_FILES " '$ac_optarg'"
@@ -30860,23 +31513,23 @@ do
   --header | --heade | --head | --hea )
     $ac_shift
     case $ac_optarg in
-    *\'*) ac_optarg=`printf "%s\n" "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    *\'*) ac_optarg=`printf '%s\n' "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
     esac
     as_fn_append CONFIG_HEADERS " '$ac_optarg'"
     ac_need_defaults=false;;
   --he | --h)
     # Conflict between --help and --header
-    as_fn_error $? "ambiguous option: \`$1'
-Try \`$0 --help' for more information.";;
+    as_fn_error $? "ambiguous option: '$1'
+Try '$0 --help' for more information.";;
   --help | --hel | -h )
-    printf "%s\n" "$ac_cs_usage"; exit ;;
+    printf '%s\n' "$ac_cs_usage"; exit ;;
   -q | -quiet | --quiet | --quie | --qui | --qu | --q \
   | -silent | --silent | --silen | --sile | --sil | --si | --s)
     ac_cs_silent=: ;;
 
   # This is an error.
-  -*) as_fn_error $? "unrecognized option: \`$1'
-Try \`$0 --help' for more information." ;;
+  -*) as_fn_error $? "unrecognized option: '$1'
+Try '$0 --help' for more information." ;;
 
   *) as_fn_append ac_config_targets " $1"
      ac_need_defaults=false ;;
@@ -30893,29 +31546,29 @@ if $ac_cs_silent; then
 fi
 
 _ACEOF
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<_ACEOF || ac_write_fail=1
 if \$ac_cs_recheck; then
   set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
   shift
-  \printf "%s\n" "running CONFIG_SHELL=$SHELL \$*" >&6
+  \printf '%s\n' "running CONFIG_SHELL=$SHELL \$*" >&6
   CONFIG_SHELL='$SHELL'
   export CONFIG_SHELL
   exec "\$@"
 fi
 
 _ACEOF
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<\_ACEOF || ac_write_fail=1
 exec 5>>config.log
 {
   echo
   sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
 ## Running $as_me. ##
 _ASBOX
-  printf "%s\n" "$ac_log"
+  printf '%s\n' "$ac_log"
 } >&5
 
 _ACEOF
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<_ACEOF || ac_write_fail=1
 #
 # INIT-COMMANDS
 #
@@ -31392,7 +32045,7 @@ SUMMARY="$SUMMARY"
 
 _ACEOF
 
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<\_ACEOF || ac_write_fail=1
 
 # Handling of arguments.
 for ac_config_target in $ac_config_targets
@@ -31409,7 +32062,7 @@ do
     "sdl2_config") CONFIG_COMMANDS="$CONFIG_COMMANDS sdl2_config" ;;
     "summary") CONFIG_COMMANDS="$CONFIG_COMMANDS summary" ;;
 
-  *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
+  *) as_fn_error $? "invalid argument: '$ac_config_target'" "$LINENO" 5;;
   esac
 done
 
@@ -31429,7 +32082,7 @@ fi
 # creating and moving files from /tmp can sometimes cause problems.
 # Hook for its removal unless debugging.
 # Note that there is a small window in which the directory will not be cleaned:
-# after its creation but before its name has been assigned to `$tmp'.
+# after its creation but before its name has been assigned to '$tmp'.
 $debug ||
 {
   tmp= ac_tmp=
@@ -31453,7 +32106,7 @@ ac_tmp=$tmp
 
 # Set up the scripts for CONFIG_FILES section.
 # No need to generate them if there are no CONFIG_FILES.
-# This happens for instance with `./config.status config.h'.
+# This happens for instance with './config.status config.h'.
 if test -n "$CONFIG_FILES"; then
 
 
@@ -31481,13 +32134,13 @@ _ACEOF
   echo "_ACEOF"
 } >conf$$subs.sh ||
   as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
-ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'`
+ac_delim_num=`echo "$ac_subst_vars" | sed -n '$='`
 ac_delim='%!_!# '
 for ac_last_try in false false false false false :; do
   . ./conf$$subs.sh ||
     as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
 
-  ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X`
+  ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | sed -n '$='`
   if test $ac_delim_n = $ac_delim_num; then
     break
   elif $ac_last_try; then
@@ -31498,7 +32151,7 @@ for ac_last_try in false false false false false :; do
 done
 rm -f conf$$subs.sh
 
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<_ACEOF || ac_write_fail=1
 cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK &&
 _ACEOF
 sed -n '
@@ -31543,9 +32196,9 @@ t delim
   N
   s/\n//
 }
-' >>$CONFIG_STATUS || ac_write_fail=1
+' >>"$CONFIG_STATUS" || ac_write_fail=1
 rm -f conf$$subs.awk
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<_ACEOF || ac_write_fail=1
 _ACAWK
 cat >>"\$ac_tmp/subs1.awk" <<_ACAWK &&
   for (key in S) S_is_set[key] = 1
@@ -31574,7 +32227,7 @@ cat >>"\$ac_tmp/subs1.awk" <<_ACAWK &&
 
 _ACAWK
 _ACEOF
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<\_ACEOF || ac_write_fail=1
 if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then
   sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g"
 else
@@ -31606,18 +32259,18 @@ s/^[^=]*=[	 ]*$//
 }'
 fi
 
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<\_ACEOF || ac_write_fail=1
 fi # test -n "$CONFIG_FILES"
 
 # Set up the scripts for CONFIG_HEADERS section.
 # No need to generate them if there are no CONFIG_HEADERS.
-# This happens for instance with `./config.status Makefile'.
+# This happens for instance with './config.status Makefile'.
 if test -n "$CONFIG_HEADERS"; then
 cat >"$ac_tmp/defines.awk" <<\_ACAWK ||
 BEGIN {
 _ACEOF
 
-# Transform confdefs.h into an awk script `defines.awk', embedded as
+# Transform confdefs.h into an awk script 'defines.awk', embedded as
 # here-document in config.status, that substitutes the proper values into
 # config.h.in to produce config.h.
 
@@ -31677,9 +32330,9 @@ s/["\\]/\\&/g; s/^/"/; s/$/\\\\\\n"\\/p
 b cont
 ' <confdefs.h | sed '
 s/'"$ac_delim"'/"\\\
-"/g' >>$CONFIG_STATUS || ac_write_fail=1
+"/g' >>"$CONFIG_STATUS" || ac_write_fail=1
 
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<_ACEOF || ac_write_fail=1
   for (key in D) D_is_set[key] = 1
   FS = ""
 }
@@ -31697,8 +32350,12 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
   macro = mac2[1]
   prefix = substr(line, 1, index(line, defundef) - 1)
   if (D_is_set[macro]) {
+    suffix = P[macro] D[macro]
+    while (suffix ~ /[\t ]$/) {
+      suffix = substr(suffix, 1, length(suffix) - 1)
+    }
     # Preserve the white space surrounding the "#".
-    print prefix "define", macro P[macro] D[macro]
+    print prefix "define", macro suffix
     next
   } else {
     # Replace #undef with comments.  This is necessary, for example,
@@ -31713,7 +32370,7 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 { print }
 _ACAWK
 _ACEOF
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<\_ACEOF || ac_write_fail=1
   as_fn_error $? "could not setup config headers machinery" "$LINENO" 5
 fi # test -n "$CONFIG_HEADERS"
 
@@ -31727,7 +32384,7 @@ do
   esac
   case $ac_mode$ac_tag in
   :[FHL]*:*);;
-  :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5;;
+  :L* | :C*:*) as_fn_error $? "invalid tag '$ac_tag'" "$LINENO" 5;;
   :[FH]-) ac_tag=-:-;;
   :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
   esac
@@ -31749,33 +32406,33 @@ do
       -) ac_f="$ac_tmp/stdin";;
       *) # Look for the file first in the build tree, then in the source tree
 	 # (if the path is not absolute).  The absolute path cannot be DOS-style,
-	 # because $ac_f cannot contain `:'.
+	 # because $ac_f cannot contain ':'.
 	 test -f "$ac_f" ||
 	   case $ac_f in
 	   [\\/$]*) false;;
 	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
 	   esac ||
-	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
+	   as_fn_error 1 "cannot find input file: '$ac_f'" "$LINENO" 5;;
       esac
-      case $ac_f in *\'*) ac_f=`printf "%s\n" "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
+      case $ac_f in *\'*) ac_f=`printf '%s\n' "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
       as_fn_append ac_file_inputs " '$ac_f'"
     done
 
-    # Let's still pretend it is `configure' which instantiates (i.e., don't
+    # Let's still pretend it is 'configure' which instantiates (i.e., don't
     # use $as_me), people would be surprised to read:
     #    /* config.h.  Generated by config.status.  */
     configure_input='Generated from '`
-	  printf "%s\n" "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
+	  printf '%s\n' "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
 	`' by configure.'
     if test x"$ac_file" != x-; then
       configure_input="$ac_file.  $configure_input"
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
-printf "%s\n" "$as_me: creating $ac_file" >&6;}
+      { printf '%s\n' "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
+printf '%s\n' "$as_me: creating $ac_file" >&6;}
     fi
     # Neutralize special characters interpreted by sed in replacement strings.
     case $configure_input in #(
     *\&* | *\|* | *\\* )
-       ac_sed_conf_input=`printf "%s\n" "$configure_input" |
+       ac_sed_conf_input=`printf '%s\n' "$configure_input" |
        sed 's/[\\\\&|]/\\\\&/g'`;; #(
     *) ac_sed_conf_input=$configure_input;;
     esac
@@ -31792,7 +32449,7 @@ $as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
 	 X"$ac_file" : 'X\(//\)[^/]' \| \
 	 X"$ac_file" : 'X\(//\)$' \| \
 	 X"$ac_file" : 'X\(/\)' \| . 2>/dev/null ||
-printf "%s\n" X"$ac_file" |
+printf '%s\n' X"$ac_file" |
     sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 	    s//\1/
 	    q
@@ -31816,9 +32473,9 @@ printf "%s\n" X"$ac_file" |
 case "$ac_dir" in
 .) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
 *)
-  ac_dir_suffix=/`printf "%s\n" "$ac_dir" | sed 's|^\.[\\/]||'`
+  ac_dir_suffix=/`printf '%s\n' "$ac_dir" | sed 's|^\.[\\/]||'`
   # A ".." for each directory in $ac_dir_suffix.
-  ac_top_builddir_sub=`printf "%s\n" "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  ac_top_builddir_sub=`printf '%s\n' "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
   case $ac_top_builddir_sub in
   "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
   *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
@@ -31858,7 +32515,7 @@ ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
   esac
 _ACEOF
 
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<\_ACEOF || ac_write_fail=1
 # If the template does not know about datarootdir, expand it.
 # FIXME: This hack should be removed a few years after 2.60.
 ac_datarootdir_hack=; ac_datarootdir_seen=
@@ -31875,10 +32532,10 @@ ac_sed_dataroot='
 case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
 *datarootdir*) ac_datarootdir_seen=yes;;
 *@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
-printf "%s\n" "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
+printf '%s\n' "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
 _ACEOF
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<_ACEOF || ac_write_fail=1
   ac_datarootdir_hack='
   s&@datadir@&$datadir&g
   s&@docdir@&$docdir&g
@@ -31889,14 +32546,14 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 esac
 _ACEOF
 
-# Neutralize VPATH when `$srcdir' = `.'.
+# Neutralize VPATH when '$srcdir' = '.'.
 # Shell code in configure.ac might set extrasub.
 # FIXME: do we really want to maintain this feature?
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<_ACEOF || ac_write_fail=1
 ac_sed_extra="$ac_vpsub
 $extrasub
 _ACEOF
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<\_ACEOF || ac_write_fail=1
 :t
 /@[a-zA-Z_][a-zA-Z_0-9]*@/!b
 s|@configure_input@|$ac_sed_conf_input|;t t
@@ -31919,9 +32576,9 @@ test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
   { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
   { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
       "$ac_tmp/out"`; test -z "$ac_out"; } &&
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable 'datarootdir'
 which seems to be undefined.  Please make sure it is defined" >&5
-printf "%s\n" "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+printf '%s\n' "$as_me: WARNING: $ac_file contains a reference to the variable 'datarootdir'
 which seems to be undefined.  Please make sure it is defined" >&2;}
 
   rm -f "$ac_tmp/stdin"
@@ -31937,27 +32594,27 @@ which seems to be undefined.  Please make sure it is defined" >&2;}
   #
   if test x"$ac_file" != x-; then
     {
-      printf "%s\n" "/* $configure_input  */" >&1 \
+      printf '%s\n' "/* $configure_input  */" >&1 \
       && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs"
     } >"$ac_tmp/config.h" \
       || as_fn_error $? "could not create $ac_file" "$LINENO" 5
     if diff "$ac_file" "$ac_tmp/config.h" >/dev/null 2>&1; then
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $ac_file is unchanged" >&5
-printf "%s\n" "$as_me: $ac_file is unchanged" >&6;}
+      { printf '%s\n' "$as_me:${as_lineno-$LINENO}: $ac_file is unchanged" >&5
+printf '%s\n' "$as_me: $ac_file is unchanged" >&6;}
     else
       rm -f "$ac_file"
       mv "$ac_tmp/config.h" "$ac_file" \
 	|| as_fn_error $? "could not create $ac_file" "$LINENO" 5
     fi
   else
-    printf "%s\n" "/* $configure_input  */" >&1 \
+    printf '%s\n' "/* $configure_input  */" >&1 \
       && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs" \
       || as_fn_error $? "could not create -" "$LINENO" 5
   fi
  ;;
 
-  :C)  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: executing $ac_file commands" >&5
-printf "%s\n" "$as_me: executing $ac_file commands" >&6;}
+  :C)  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: executing $ac_file commands" >&5
+printf '%s\n' "$as_me: executing $ac_file commands" >&6;}
  ;;
   esac
 
@@ -32839,7 +33496,7 @@ done # for ac_tag
 
 as_fn_exit 0
 _ACEOF
-ac_clean_files=$ac_clean_files_save
+ac_clean_CONFIG_STATUS=
 
 test $ac_write_fail = 0 ||
   as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5
@@ -32855,19 +33512,26 @@ test $ac_write_fail = 0 ||
 # need to make the FD available again.
 if test "$no_create" != yes; then
   ac_cs_success=:
+  case $CONFIG_STATUS in #(
+  -*) :
+    ac_no_opts=-- ;; #(
+  *) :
+    ac_no_opts= ;;
+esac
   ac_config_status_args=
   test "$silent" = yes &&
     ac_config_status_args="$ac_config_status_args --quiet"
   exec 5>/dev/null
-  $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
+  $SHELL $ac_no_opts "$CONFIG_STATUS" $ac_config_status_args ||
+    ac_cs_success=false
   exec 5>>config.log
   # Use ||, not &&, to avoid exiting from the if with $? = 1, which
   # would make configure fail if this is the last instruction.
   $ac_cs_success || as_fn_exit 1
 fi
 if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
-printf "%s\n" "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
+printf '%s\n' "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
 fi
 
 
diff --git a/test/configure b/test/configure
index 8ea80bc27e..1ad8774172 100755
--- a/test/configure
+++ b/test/configure
@@ -1,9 +1,9 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.71.
+# Generated by GNU Autoconf 2.73.
 #
 #
-# Copyright (C) 1992-1996, 1998-2017, 2020-2021 Free Software Foundation,
+# Copyright (C) 1992-1996, 1998-2017, 2020-2026 Free Software Foundation,
 # Inc.
 #
 #
@@ -15,21 +15,21 @@
 
 # Be more Bourne compatible
 DUALCASE=1; export DUALCASE # for MKS sh
-as_nop=:
 if test ${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
 then :
   emulate sh
   NULLCMD=:
   # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
-  # is contrary to our usage.  Disable this feature.
+  # contradicts POSIX and common usage.  Disable this.
   alias -g '${1+"$@"}'='"$@"'
   setopt NO_GLOB_SUBST
-else $as_nop
-  case `(set -o) 2>/dev/null` in #(
+else case e in #(
+  e) case `(set -o) 2>/dev/null` in #(
   *posix*) :
     set -o posix ;; #(
   *) :
      ;;
+esac ;;
 esac
 fi
 
@@ -101,13 +101,13 @@ IFS=$as_save_IFS
 
      ;;
 esac
-# We did not find ourselves, most probably we were run as `sh COMMAND'
+# We did not find ourselves, most probably we were run as 'sh COMMAND'
 # in which case we are not to be found in the path.
 if test "x$as_myself" = x; then
   as_myself=$0
 fi
 if test ! -f "$as_myself"; then
-  printf "%s\n" "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  printf '%s\n' "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
   exit 1
 fi
 
@@ -129,30 +129,33 @@ case $- in # ((((
   *x* ) as_opts=-x ;;
   * ) as_opts= ;;
 esac
-exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+case $# in # ((
+  0) exec $CONFIG_SHELL $as_opts "$as_myself" ;;
+  *) exec $CONFIG_SHELL $as_opts "$as_myself" "$@" ;;
+esac
 # Admittedly, this is quite paranoid, since all the known shells bail
-# out after a failed `exec'.
-printf "%s\n" "$0: could not re-execute with $CONFIG_SHELL" >&2
+# out after a failed 'exec'.
+printf '%s\n' "$0: could not re-execute with $CONFIG_SHELL" >&2
 exit 255
   fi
   # We don't want this to propagate to other subprocesses.
           { _as_can_reexec=; unset _as_can_reexec;}
 if test "x$CONFIG_SHELL" = x; then
-  as_bourne_compatible="as_nop=:
-if test \${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
+  as_bourne_compatible="if test \${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
 then :
   emulate sh
   NULLCMD=:
   # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
-  # is contrary to our usage.  Disable this feature.
+  # contradicts POSIX and common usage.  Disable this.
   alias -g '\${1+\"\$@\"}'='\"\$@\"'
   setopt NO_GLOB_SUBST
-else \$as_nop
-  case \`(set -o) 2>/dev/null\` in #(
+else case e in #(
+  e) case \`(set -o) 2>/dev/null\` in #(
   *posix*) :
     set -o posix ;; #(
   *) :
      ;;
+esac ;;
 esac
 fi
 "
@@ -170,8 +173,9 @@ as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
 if ( set x; as_fn_ret_success y && test x = \"\$1\" )
 then :
 
-else \$as_nop
-  exitcode=1; echo positional parameters were not saved.
+else case e in #(
+  e) exitcode=1; echo positional parameters were not saved. ;;
+esac
 fi
 test x\$exitcode = x0 || exit 1
 blah=\$(echo \$(echo blah))
@@ -184,14 +188,15 @@ test -x / || exit 1"
   if (eval "$as_required") 2>/dev/null
 then :
   as_have_required=yes
-else $as_nop
-  as_have_required=no
+else case e in #(
+  e) as_have_required=no ;;
+esac
 fi
   if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null
 then :
 
-else $as_nop
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+else case e in #(
+  e) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 as_found=false
 for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
 do
@@ -224,12 +229,13 @@ IFS=$as_save_IFS
 if $as_found
 then :
 
-else $as_nop
-  if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
+else case e in #(
+  e) if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
 	      as_run=a "$SHELL" -c "$as_bourne_compatible""$as_required" 2>/dev/null
 then :
   CONFIG_SHELL=$SHELL as_have_required=yes
-fi
+fi ;;
+esac
 fi
 
 
@@ -249,28 +255,32 @@ case $- in # ((((
   *x* ) as_opts=-x ;;
   * ) as_opts= ;;
 esac
-exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+case $# in # ((
+  0) exec $CONFIG_SHELL $as_opts "$as_myself" ;;
+  *) exec $CONFIG_SHELL $as_opts "$as_myself" "$@" ;;
+esac
 # Admittedly, this is quite paranoid, since all the known shells bail
-# out after a failed `exec'.
-printf "%s\n" "$0: could not re-execute with $CONFIG_SHELL" >&2
+# out after a failed 'exec'.
+printf '%s\n' "$0: could not re-execute with $CONFIG_SHELL" >&2
 exit 255
 fi
 
     if test x$as_have_required = xno
 then :
-  printf "%s\n" "$0: This script requires a shell more modern than all"
-  printf "%s\n" "$0: the shells that I found on your system."
+  printf '%s\n' "$0: This script requires a shell more modern than all"
+  printf '%s\n' "$0: the shells that I found on your system."
   if test ${ZSH_VERSION+y} ; then
-    printf "%s\n" "$0: In particular, zsh $ZSH_VERSION has bugs and should"
-    printf "%s\n" "$0: be upgraded to zsh 4.3.4 or later."
+    printf '%s\n' "$0: In particular, zsh $ZSH_VERSION has bugs and should"
+    printf '%s\n' "$0: be upgraded to zsh 4.3.4 or later."
   else
-    printf "%s\n" "$0: Please tell bug-autoconf@gnu.org about your system,
+    printf '%s\n' "$0: Please tell bug-autoconf@gnu.org about your system,
 $0: including any error possibly output before this
 $0: message. Then install a modern shell, or manually run
 $0: the script under such a shell if you do have one."
   fi
   exit 1
-fi
+fi ;;
+esac
 fi
 fi
 SHELL=${CONFIG_SHELL-/bin/sh}
@@ -309,14 +319,6 @@ as_fn_exit ()
   as_fn_set_status $1
   exit $1
 } # as_fn_exit
-# as_fn_nop
-# ---------
-# Do nothing but, unlike ":", preserve the value of $?.
-as_fn_nop ()
-{
-  return $?
-}
-as_nop=as_fn_nop
 
 # as_fn_mkdir_p
 # -------------
@@ -331,7 +333,7 @@ as_fn_mkdir_p ()
     as_dirs=
     while :; do
       case $as_dir in #(
-      *\'*) as_qdir=`printf "%s\n" "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *\'*) as_qdir=`printf '%s\n' "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
       *) as_qdir=$as_dir;;
       esac
       as_dirs="'$as_qdir' $as_dirs"
@@ -340,7 +342,7 @@ $as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
 	 X"$as_dir" : 'X\(//\)[^/]' \| \
 	 X"$as_dir" : 'X\(//\)$' \| \
 	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
-printf "%s\n" X"$as_dir" |
+printf '%s\n' X"$as_dir" |
     sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 	    s//\1/
 	    q
@@ -385,11 +387,12 @@ then :
   {
     eval $1+=\$2
   }'
-else $as_nop
-  as_fn_append ()
+else case e in #(
+  e) as_fn_append ()
   {
     eval $1=\$$1\$2
-  }
+  } ;;
+esac
 fi # as_fn_append
 
 # as_fn_arith ARG...
@@ -403,21 +406,14 @@ then :
   {
     as_val=$(( $* ))
   }'
-else $as_nop
-  as_fn_arith ()
+else case e in #(
+  e) as_fn_arith ()
   {
     as_val=`expr "$@" || test $? -eq 1`
-  }
+  } ;;
+esac
 fi # as_fn_arith
 
-# as_fn_nop
-# ---------
-# Do nothing but, unlike ":", preserve the value of $?.
-as_fn_nop ()
-{
-  return $?
-}
-as_nop=as_fn_nop
 
 # as_fn_error STATUS ERROR [LINENO LOG_FD]
 # ----------------------------------------
@@ -429,9 +425,9 @@ as_fn_error ()
   as_status=$1; test $as_status -eq 0 && as_status=1
   if test "$4"; then
     as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
   fi
-  printf "%s\n" "$as_me: error: $2" >&2
+  printf '%s\n' "$as_me: error: $2" >&2
   as_fn_exit $as_status
 } # as_fn_error
 
@@ -458,7 +454,7 @@ as_me=`$as_basename -- "$0" ||
 $as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
 	 X"$0" : 'X\(//\)$' \| \
 	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
-printf "%s\n" X/"$0" |
+printf '%s\n' X/"$0" |
     sed '/^.*\/\([^/][^/]*\)\/*$/{
 	    s//\1/
 	    q
@@ -491,6 +487,8 @@ as_cr_alnum=$as_cr_Letters$as_cr_digits
     /[$]LINENO/=
   ' <$as_myself |
     sed '
+      t clear
+      :clear
       s/[$]LINENO.*/&-/
       t lineno
       b
@@ -502,7 +500,7 @@ as_cr_alnum=$as_cr_Letters$as_cr_digits
       s/-\n.*//
     ' >$as_me.lineno &&
   chmod +x "$as_me.lineno" ||
-    { printf "%s\n" "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+    { printf '%s\n' "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
 
   # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
   # already done that, so ensure we don't try to do so again and fall
@@ -516,30 +514,6 @@ as_cr_alnum=$as_cr_Letters$as_cr_digits
   exit
 }
 
-
-# Determine whether it's possible to make 'echo' print without a newline.
-# These variables are no longer used directly by Autoconf, but are AC_SUBSTed
-# for compatibility with existing Makefiles.
-ECHO_C= ECHO_N= ECHO_T=
-case `echo -n x` in #(((((
--n*)
-  case `echo 'xy\c'` in
-  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
-  xy)  ECHO_C='\c';;
-  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
-       ECHO_T='	';;
-  esac;;
-*)
-  ECHO_N='-n';;
-esac
-
-# For backward compatibility with old third-party macros, we provide
-# the shell variables $as_echo and $as_echo_n.  New code should use
-# AS_ECHO(["message"]) and AS_ECHO_N(["message"]), respectively.
-as_echo='printf %s\n'
-as_echo_n='printf %s'
-
-
 rm -f conf$$ conf$$.exe conf$$.file
 if test -d conf$$.dir; then
   rm -f conf$$.dir/conf$$.file
@@ -551,9 +525,9 @@ if (echo >conf$$.file) 2>/dev/null; then
   if ln -s conf$$.file conf$$ 2>/dev/null; then
     as_ln_s='ln -s'
     # ... but there are two gotchas:
-    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
-    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
-    # In both cases, we have to default to `cp -pR'.
+    # 1) On MSYS, both 'ln -s file dir' and 'ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; 'ln -s' creates a wrapper executable.
+    # In both cases, we have to default to 'cp -pR'.
     ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
       as_ln_s='cp -pR'
   elif ln conf$$.file conf$$ 2>/dev/null; then
@@ -578,10 +552,12 @@ as_test_x='test -x'
 as_executable_p=as_fn_executable_p
 
 # Sed expression to map a string onto a valid CPP name.
-as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+as_sed_cpp="y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g"
+as_tr_cpp="eval sed '$as_sed_cpp'" # deprecated
 
 # Sed expression to map a string onto a valid variable name.
-as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+as_sed_sh="y%*+%pp%;s%[^_$as_cr_alnum]%_%g"
+as_tr_sh="eval sed '$as_sed_sh'" # deprecated
 
 
 test -n "$DJDIR" || exec 7<&0 </dev/null
@@ -596,6 +572,7 @@ ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`
 # Initializations.
 #
 ac_default_prefix=/usr/local
+ac_clean_CONFIG_STATUS=
 ac_clean_files=
 ac_config_libobj_dir=.
 LIBOBJS=
@@ -655,13 +632,13 @@ build_os
 build_vendor
 build_cpu
 build
+ECHO_T
+ECHO_N
+ECHO_C
 target_alias
 host_alias
 build_alias
 LIBS
-ECHO_T
-ECHO_N
-ECHO_C
 DEFS
 mandir
 localedir
@@ -828,9 +805,9 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid feature name: \`$ac_useropt'"
+      as_fn_error $? "invalid feature name: '$ac_useropt'"
     ac_useropt_orig=$ac_useropt
-    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
+    ac_useropt=`printf '%s\n' "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
       *"
 "enable_$ac_useropt"
@@ -854,9 +831,9 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid feature name: \`$ac_useropt'"
+      as_fn_error $? "invalid feature name: '$ac_useropt'"
     ac_useropt_orig=$ac_useropt
-    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
+    ac_useropt=`printf '%s\n' "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
       *"
 "enable_$ac_useropt"
@@ -1067,9 +1044,9 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid package name: \`$ac_useropt'"
+      as_fn_error $? "invalid package name: '$ac_useropt'"
     ac_useropt_orig=$ac_useropt
-    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
+    ac_useropt=`printf '%s\n' "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
       *"
 "with_$ac_useropt"
@@ -1083,9 +1060,9 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*without-\(.*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid package name: \`$ac_useropt'"
+      as_fn_error $? "invalid package name: '$ac_useropt'"
     ac_useropt_orig=$ac_useropt
-    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
+    ac_useropt=`printf '%s\n' "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
       *"
 "with_$ac_useropt"
@@ -1113,8 +1090,8 @@ do
   | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
     x_libraries=$ac_optarg ;;
 
-  -*) as_fn_error $? "unrecognized option: \`$ac_option'
-Try \`$0 --help' for more information"
+  -*) as_fn_error $? "unrecognized option: '$ac_option'
+Try '$0 --help' for more information"
     ;;
 
   *=*)
@@ -1122,16 +1099,16 @@ Try \`$0 --help' for more information"
     # Reject names that are not valid shell variable names.
     case $ac_envvar in #(
       '' | [0-9]* | *[!_$as_cr_alnum]* )
-      as_fn_error $? "invalid variable name: \`$ac_envvar'" ;;
+      as_fn_error $? "invalid variable name: '$ac_envvar'" ;;
     esac
     eval $ac_envvar=\$ac_optarg
     export $ac_envvar ;;
 
   *)
     # FIXME: should be removed in autoconf 3.0.
-    printf "%s\n" "$as_me: WARNING: you should use --build, --host, --target" >&2
+    printf '%s\n' "$as_me: WARNING: you should use --build, --host, --target" >&2
     expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
-      printf "%s\n" "$as_me: WARNING: invalid host type: $ac_option" >&2
+      printf '%s\n' "$as_me: WARNING: invalid host type: $ac_option" >&2
     : "${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}"
     ;;
 
@@ -1139,7 +1116,7 @@ Try \`$0 --help' for more information"
 done
 
 if test -n "$ac_prev"; then
-  ac_option=--`echo $ac_prev | sed 's/_/-/g'`
+  ac_option=--`printf '%s\n' $ac_prev | sed 's/_/-/g'`
   as_fn_error $? "missing argument to $ac_option"
 fi
 
@@ -1147,7 +1124,7 @@ if test -n "$ac_unrecognized_opts"; then
   case $enable_option_checking in
     no) ;;
     fatal) as_fn_error $? "unrecognized options: $ac_unrecognized_opts" ;;
-    *)     printf "%s\n" "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;;
+    *)     printf '%s\n' "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;;
   esac
 fi
 
@@ -1172,7 +1149,7 @@ do
   as_fn_error $? "expected an absolute directory name for --$ac_var: $ac_val"
 done
 
-# There might be people who depend on the old broken behavior: `$host'
+# There might be people who depend on the old broken behavior: '$host'
 # used to hold the argument of --host etc.
 # FIXME: To remove some day.
 build=$build_alias
@@ -1211,7 +1188,7 @@ $as_expr X"$as_myself" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
 	 X"$as_myself" : 'X\(//\)[^/]' \| \
 	 X"$as_myself" : 'X\(//\)$' \| \
 	 X"$as_myself" : 'X\(/\)' \| . 2>/dev/null ||
-printf "%s\n" X"$as_myself" |
+printf '%s\n' X"$as_myself" |
     sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 	    s//\1/
 	    q
@@ -1240,7 +1217,7 @@ if test ! -r "$srcdir/$ac_unique_file"; then
   test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
   as_fn_error $? "cannot find sources ($ac_unique_file) in $srcdir"
 fi
-ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
+ac_msg="sources are in $srcdir, but 'cd $srcdir' does not work"
 ac_abs_confdir=`(
 	cd "$srcdir" && test -r "./$ac_unique_file" || as_fn_error $? "$ac_msg"
 	pwd)`
@@ -1268,7 +1245,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures this package to adapt to many kinds of systems.
+'configure' configures this package to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1282,11 +1259,11 @@ Configuration:
       --help=short        display options specific to this package
       --help=recursive    display the short help of all the included packages
   -V, --version           display version information and exit
-  -q, --quiet, --silent   do not print \`checking ...' messages
+  -q, --quiet, --silent   do not print 'checking ...' messages
       --cache-file=FILE   cache test results in FILE [disabled]
-  -C, --config-cache      alias for \`--cache-file=config.cache'
+  -C, --config-cache      alias for '--cache-file=config.cache'
   -n, --no-create         do not create output files
-      --srcdir=DIR        find the sources in DIR [configure dir or \`..']
+      --srcdir=DIR        find the sources in DIR [configure dir or '..']
 
 Installation directories:
   --prefix=PREFIX         install architecture-independent files in PREFIX
@@ -1294,10 +1271,10 @@ Installation directories:
   --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
                           [PREFIX]
 
-By default, \`make install' will install all the files in
-\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc.  You can specify
-an installation prefix other than \`$ac_default_prefix' using \`--prefix',
-for instance \`--prefix=\$HOME'.
+By default, 'make install' will install all the files in
+'$ac_default_prefix/bin', '$ac_default_prefix/lib' etc.  You can specify
+an installation prefix other than '$ac_default_prefix' using '--prefix',
+for instance '--prefix=\$HOME'.
 
 For better control, use the options below.
 
@@ -1376,7 +1353,7 @@ Some influential environment variables:
   LIBUNWIND_LIBS
               linker flags for LIBUNWIND, overriding pkg-config
 
-Use these variables to override the choices made by `configure' or to help
+Use these variables to override the choices made by 'configure' or to help
 it to find libraries and programs with nonstandard names/locations.
 
 Report bugs to the package provider.
@@ -1395,9 +1372,9 @@ if test "$ac_init_help" = "recursive"; then
 case "$ac_dir" in
 .) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
 *)
-  ac_dir_suffix=/`printf "%s\n" "$ac_dir" | sed 's|^\.[\\/]||'`
+  ac_dir_suffix=/`printf '%s\n' "$ac_dir" | sed 's|^\.[\\/]||'`
   # A ".." for each directory in $ac_dir_suffix.
-  ac_top_builddir_sub=`printf "%s\n" "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  ac_top_builddir_sub=`printf '%s\n' "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
   case $ac_top_builddir_sub in
   "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
   *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
@@ -1434,7 +1411,7 @@ ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
       echo &&
       $SHELL "$ac_srcdir/configure" --help=recursive
     else
-      printf "%s\n" "$as_me: WARNING: no configuration information is in $ac_dir" >&2
+      printf '%s\n' "$as_me: WARNING: no configuration information is in $ac_dir" >&2
     fi || ac_status=$?
     cd "$ac_pwd" || { ac_status=$?; break; }
   done
@@ -1444,9 +1421,9 @@ test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
 configure
-generated by GNU Autoconf 2.71
+generated by GNU Autoconf 2.73
 
-Copyright (C) 2021 Free Software Foundation, Inc.
+Copyright (C) 2026 Free Software Foundation, Inc.
 This configure script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it.
 _ACEOF
@@ -1470,7 +1447,7 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-printf "%s\n" "$ac_try_echo"; } >&5
+printf '%s\n' "$ac_try_echo"; } >&5
   (eval "$ac_compile") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
@@ -1478,18 +1455,19 @@ printf "%s\n" "$ac_try_echo"; } >&5
     cat conftest.er1 >&5
     mv -f conftest.er1 conftest.err
   fi
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } && {
 	 test -z "$ac_c_werror_flag" ||
 	 test ! -s conftest.err
        } && test -s conftest.$ac_objext
 then :
   ac_retval=0
-else $as_nop
-  printf "%s\n" "$as_me: failed program was:" >&5
+else case e in #(
+  e) printf '%s\n' "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-	ac_retval=1
+	ac_retval=1 ;;
+esac
 fi
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
   as_fn_set_status $ac_retval
@@ -1509,7 +1487,7 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-printf "%s\n" "$ac_try_echo"; } >&5
+printf '%s\n' "$ac_try_echo"; } >&5
   (eval "$ac_link") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
@@ -1517,7 +1495,7 @@ printf "%s\n" "$ac_try_echo"; } >&5
     cat conftest.er1 >&5
     mv -f conftest.er1 conftest.err
   fi
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } && {
 	 test -z "$ac_c_werror_flag" ||
 	 test ! -s conftest.err
@@ -1527,11 +1505,12 @@ printf "%s\n" "$ac_try_echo"; } >&5
        }
 then :
   ac_retval=0
-else $as_nop
-  printf "%s\n" "$as_me: failed program was:" >&5
+else case e in #(
+  e) printf '%s\n' "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-	ac_retval=1
+	ac_retval=1 ;;
+esac
 fi
   # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
   # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
@@ -1556,29 +1535,30 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-printf "%s\n" "$ac_try_echo"; } >&5
+printf '%s\n' "$ac_try_echo"; } >&5
   (eval "$ac_link") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
   { { case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-printf "%s\n" "$ac_try_echo"; } >&5
+printf '%s\n' "$ac_try_echo"; } >&5
   (eval "$ac_try") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; }
 then :
   ac_retval=0
-else $as_nop
-  printf "%s\n" "$as_me: program exited with status $ac_status" >&5
-       printf "%s\n" "$as_me: failed program was:" >&5
+else case e in #(
+  e) printf '%s\n' "$as_me: program exited with status $ac_status" >&5
+       printf '%s\n' "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-       ac_retval=$ac_status
+       ac_retval=$ac_status ;;
+esac
 fi
   rm -rf conftest.dSYM conftest_ipa8_conftest.oo
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
@@ -1598,7 +1578,7 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-printf "%s\n" "$ac_try_echo"; } >&5
+printf '%s\n' "$ac_try_echo"; } >&5
   (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
@@ -1606,18 +1586,19 @@ printf "%s\n" "$ac_try_echo"; } >&5
     cat conftest.er1 >&5
     mv -f conftest.er1 conftest.err
   fi
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } > conftest.i && {
 	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
 	 test ! -s conftest.err
        }
 then :
   ac_retval=0
-else $as_nop
-  printf "%s\n" "$as_me: failed program was:" >&5
+else case e in #(
+  e) printf '%s\n' "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-    ac_retval=1
+    ac_retval=1 ;;
+esac
 fi
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
   as_fn_set_status $ac_retval
@@ -1628,7 +1609,7 @@ for ac_arg
 do
   case $ac_arg in
   *\'*)
-    ac_arg=`printf "%s\n" "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    ac_arg=`printf '%s\n' "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
   esac
   as_fn_append ac_configure_args_raw " '$ac_arg'"
 done
@@ -1640,7 +1621,7 @@ case $ac_configure_args_raw in
     ac_unsafe_z='|&;<>()$`\\"*?[ ''	' # This string ends in space, tab.
     ac_unsafe_a="$ac_unsafe_z#~"
     ac_safe_unquote="s/ '\\([^$ac_unsafe_a][^$ac_unsafe_z]*\\)'/ \\1/g"
-    ac_configure_args_raw=`      printf "%s\n" "$ac_configure_args_raw" | sed "$ac_safe_unquote"`;;
+    ac_configure_args_raw=`      printf '%s\n' "$ac_configure_args_raw" | sed "$ac_safe_unquote"`;;
 esac
 
 cat >config.log <<_ACEOF
@@ -1648,7 +1629,7 @@ This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
 It was created by $as_me, which was
-generated by GNU Autoconf 2.71.  Invocation command line was
+generated by GNU Autoconf 2.73.  Invocation command line was
 
   $ $0$ac_configure_args_raw
 
@@ -1688,7 +1669,7 @@ do
     */) ;;
     *) as_dir=$as_dir/ ;;
   esac
-    printf "%s\n" "PATH: $as_dir"
+    printf '%s\n' "PATH: $as_dir"
   done
 IFS=$as_save_IFS
 
@@ -1723,7 +1704,7 @@ do
     | -silent | --silent | --silen | --sile | --sil)
       continue ;;
     *\'*)
-      ac_arg=`printf "%s\n" "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+      ac_arg=`printf '%s\n' "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
     esac
     case $ac_pass in
     1) as_fn_append ac_configure_args0 " '$ac_arg'" ;;
@@ -1752,31 +1733,22 @@ done
 { ac_configure_args0=; unset ac_configure_args0;}
 { ac_configure_args1=; unset ac_configure_args1;}
 
-# When interrupted or exit'd, cleanup temporary files, and complete
-# config.log.  We remove comments because anyway the quotes in there
-# would cause problems or look ugly.
-# WARNING: Use '\'' to represent an apostrophe within the trap.
-# WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
-trap 'exit_status=$?
-  # Sanitize IFS.
-  IFS=" ""	$as_nl"
-  # Save into config.log some information that might help in debugging.
-  {
-    echo
-
-    printf "%s\n" "## ---------------- ##
-## Cache variables. ##
-## ---------------- ##"
-    echo
-    # The following way of writing the cache mishandles newlines in values,
+# Dump the cache to stdout.  It can be in a pipe (this is a requirement).
+ac_cache_dump ()
+{
+  # The following way of writing the cache mishandles newlines in values,
+# but we know of no workaround that is simple, portable, and efficient.
+# So, we kill variables containing newlines.
+# Ultrix sh set writes to stderr and can't be redirected directly,
+# and sets the high bit in the cache file unless we assign to the vars.
 (
-  for ac_var in `(set) 2>&1 | sed -n '\''s/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'\''`; do
+  for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do
     eval ac_val=\$$ac_var
     case $ac_val in #(
     *${as_nl}*)
       case $ac_var in #(
-      *_cv_*) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
-printf "%s\n" "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+      *_cv_*) { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+printf '%s\n' "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
       esac
       case $ac_var in #(
       _ | IFS | as_nl) ;; #(
@@ -1785,67 +1757,95 @@ printf "%s\n" "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;}
       esac ;;
     esac
   done
+
   (set) 2>&1 |
-    case $as_nl`(ac_space='\'' '\''; set) 2>&1` in #(
+    case $as_nl`(ac_space=' '; set) 2>&1` in #(
     *${as_nl}ac_space=\ *)
+      # 'set' does not quote correctly, so add quotes: double-quote
+      # substitution turns \\\\ into \\, and sed turns \\ into \.
       sed -n \
-	"s/'\''/'\''\\\\'\'''\''/g;
-	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\''\\2'\''/p"
+	"s/'/'\\\\''/g;
+	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
       ;; #(
     *)
+      # 'set' quotes correctly as required by POSIX, so do not add quotes.
       sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
       ;;
     esac |
     sort
 )
-    echo
+}
 
-    printf "%s\n" "## ----------------- ##
+# Print debugging info to stdout.
+ac_dump_debugging_info ()
+{
+  echo
+
+  printf '%s\n' "## ---------------- ##
+## Cache variables. ##
+## ---------------- ##"
+  echo
+  ac_cache_dump
+  echo
+
+  printf '%s\n' "## ----------------- ##
 ## Output variables. ##
 ## ----------------- ##"
+  echo
+  for ac_var in $ac_subst_vars
+  do
+    eval ac_val=\$$ac_var
+    case $ac_val in
+    *\'*) ac_val=`printf '%s\n' "$ac_val" | sed "s/'/'\\\\\\\\''/g"`;;
+    esac
+    printf '%s\n' "$ac_var='$ac_val'"
+  done | sort
+  echo
+
+  if test -n "$ac_subst_files"; then
+    printf '%s\n' "## ------------------- ##
+## File substitutions. ##
+## ------------------- ##"
     echo
-    for ac_var in $ac_subst_vars
+    for ac_var in $ac_subst_files
     do
       eval ac_val=\$$ac_var
       case $ac_val in
-      *\'\''*) ac_val=`printf "%s\n" "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+      *\'*) ac_val=`printf '%s\n' "$ac_val" | sed "s/'/'\\\\\\\\''/g"`;;
       esac
-      printf "%s\n" "$ac_var='\''$ac_val'\''"
+      printf '%s\n' "$ac_var='$ac_val'"
     done | sort
     echo
+  fi
 
-    if test -n "$ac_subst_files"; then
-      printf "%s\n" "## ------------------- ##
-## File substitutions. ##
-## ------------------- ##"
-      echo
-      for ac_var in $ac_subst_files
-      do
-	eval ac_val=\$$ac_var
-	case $ac_val in
-	*\'\''*) ac_val=`printf "%s\n" "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
-	esac
-	printf "%s\n" "$ac_var='\''$ac_val'\''"
-      done | sort
-      echo
-    fi
-
-    if test -s confdefs.h; then
-      printf "%s\n" "## ----------- ##
+  if test -s confdefs.h; then
+    printf '%s\n' "## ----------- ##
 ## confdefs.h. ##
 ## ----------- ##"
-      echo
-      cat confdefs.h
-      echo
-    fi
-    test "$ac_signal" != 0 &&
-      printf "%s\n" "$as_me: caught signal $ac_signal"
-    printf "%s\n" "$as_me: exit $exit_status"
-  } >&5
-  rm -f core *.core core.conftest.* &&
+    echo
+    cat confdefs.h
+    echo
+  fi
+  test "$ac_signal" != 0 &&
+    printf '%s\n' "$as_me: caught signal $ac_signal"
+  printf '%s\n' "$as_me: exit $exit_status"
+}
+
+# When interrupted or exit'd, cleanup temporary files, and complete
+# config.log.
+ac_exit_trap ()
+{
+  exit_status=
+  # Sanitize IFS.
+  IFS=" ""	$as_nl"
+  # Save into config.log some information that might help in debugging.
+  ac_dump_debugging_info >&5
+  eval "rm -f $ac_clean_CONFIG_STATUS core *.core core.conftest.*" &&
     rm -f -r conftest* confdefs* conf$$* $ac_clean_files &&
     exit $exit_status
-' 0
+}
+
+trap 'ac_exit_trap $?' 0
 for ac_signal in 1 2 13 15; do
   trap 'ac_signal='$ac_signal'; as_fn_exit 1' $ac_signal
 done
@@ -1854,21 +1854,21 @@ ac_signal=0
 # confdefs.h avoids OS command line length limits that DEFS can exceed.
 rm -f -r conftest* confdefs.h
 
-printf "%s\n" "/* confdefs.h */" > confdefs.h
+printf '%s\n' "/* confdefs.h */" > confdefs.h
 
 # Predefined preprocessor variables.
 
-printf "%s\n" "#define PACKAGE_NAME \"$PACKAGE_NAME\"" >>confdefs.h
+printf '%s\n' "#define PACKAGE_NAME \"$PACKAGE_NAME\"" >>confdefs.h
 
-printf "%s\n" "#define PACKAGE_TARNAME \"$PACKAGE_TARNAME\"" >>confdefs.h
+printf '%s\n' "#define PACKAGE_TARNAME \"$PACKAGE_TARNAME\"" >>confdefs.h
 
-printf "%s\n" "#define PACKAGE_VERSION \"$PACKAGE_VERSION\"" >>confdefs.h
+printf '%s\n' "#define PACKAGE_VERSION \"$PACKAGE_VERSION\"" >>confdefs.h
 
-printf "%s\n" "#define PACKAGE_STRING \"$PACKAGE_STRING\"" >>confdefs.h
+printf '%s\n' "#define PACKAGE_STRING \"$PACKAGE_STRING\"" >>confdefs.h
 
-printf "%s\n" "#define PACKAGE_BUGREPORT \"$PACKAGE_BUGREPORT\"" >>confdefs.h
+printf '%s\n' "#define PACKAGE_BUGREPORT \"$PACKAGE_BUGREPORT\"" >>confdefs.h
 
-printf "%s\n" "#define PACKAGE_URL \"$PACKAGE_URL\"" >>confdefs.h
+printf '%s\n' "#define PACKAGE_URL \"$PACKAGE_URL\"" >>confdefs.h
 
 
 # Let the site file select an alternate cache file if it wants to.
@@ -1890,14 +1890,14 @@ do
     ac_site_file=./$ac_site_file ;;
 esac
   if test -f "$ac_site_file" && test -r "$ac_site_file"; then
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
-printf "%s\n" "$as_me: loading site script $ac_site_file" >&6;}
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
+printf '%s\n' "$as_me: loading site script $ac_site_file" >&6;}
     sed 's/^/| /' "$ac_site_file" >&5
     . "$ac_site_file" \
-      || { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+      || { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf '%s\n' "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "failed to load site script $ac_site_file
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
   fi
 done
 
@@ -1905,27 +1905,120 @@ if test -r "$cache_file"; then
   # Some versions of bash will fail to source /dev/null (special files
   # actually), so we avoid doing that.  DJGPP emulates it as a regular file.
   if test /dev/null != "$cache_file" && test -f "$cache_file"; then
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
-printf "%s\n" "$as_me: loading cache $cache_file" >&6;}
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
+printf '%s\n' "$as_me: loading cache $cache_file" >&6;}
     case $cache_file in
       [\\/]* | ?:[\\/]* ) . "$cache_file";;
       *)                      . "./$cache_file";;
     esac
   fi
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
-printf "%s\n" "$as_me: creating cache $cache_file" >&6;}
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
+printf '%s\n' "$as_me: creating cache $cache_file" >&6;}
   >$cache_file
 fi
 
+# Test code for whether the C compiler supports C23 (global declarations)
+ac_c_conftest_c23_globals='
+/* Does the compiler advertise conformance to C17 or earlier?
+   Although GCC 14 does not do that, even with -std=gnu23,
+   it is close enough, and defines __STDC_VERSION == 202000L.  */
+#if !defined __STDC_VERSION__ || __STDC_VERSION__ <= 201710L
+# error "Compiler advertises conformance to C17 or earlier"
+#endif
+
+// Check alignas.
+char alignas (double) c23_aligned_as_double;
+char alignas (0) c23_no_special_alignment;
+extern char c23_aligned_as_int;
+char alignas (0) alignas (int) c23_aligned_as_int;
+
+// Check alignof.
+enum
+{
+  c23_int_alignment = alignof (int),
+  c23_int_array_alignment = alignof (int[100]),
+  c23_char_alignment = alignof (char)
+};
+static_assert (0 < -alignof (int), "alignof is signed");
+
+int function_with_unnamed_parameter (int) { return 0; }
+
+void c23_noreturn ();
+
+/* Test parsing of string and char UTF-8 literals (including hex escapes).
+   The parens pacify GCC 15.  */
+bool use_u8 = (!sizeof u8"\xFF") == (!u8'\''x'\'');
+
+bool check_that_bool_works = true | false | !nullptr;
+#if !true
+# error "true does not work in #if"
+#endif
+#if false
+#elifdef __STDC_VERSION__
+#else
+# error "#elifdef does not work"
+#endif
+
+#ifndef __has_c_attribute
+# error "__has_c_attribute not defined"
+#endif
+
+#ifndef __has_include
+# error "__has_include not defined"
+#endif
+
+#define LPAREN() (
+#define FORTY_TWO(x) 42
+#define VA_OPT_TEST(r, x, ...) __VA_OPT__ (FORTY_TWO r x))
+static_assert (VA_OPT_TEST (LPAREN (), 0, <:-) == 42);
+
+static_assert (0b101010 == 42);
+static_assert (0B101010 == 42);
+static_assert (0xDEAD'\''BEEF == 3'\''735'\''928'\''559);
+static_assert (0.500'\''000'\''000 == 0.5);
+
+enum unsignedish : unsigned int { uione = 1 };
+static_assert (0 < -uione);
+
+#include <stddef.h>
+constexpr nullptr_t null_pointer = nullptr;
+
+static typeof (1 + 1L) two () { return 2; }
+static long int three () { return 3; }
+'
+
+# Test code for whether the C compiler supports C23 (body of main).
+ac_c_conftest_c23_main='
+  {
+    label_before_declaration:
+      int arr[10] = {};
+      if (arr[0])
+        goto label_before_declaration;
+      if (!arr[0])
+        goto label_at_end_of_block;
+    label_at_end_of_block:
+  }
+  ok |= !null_pointer;
+  ok |= two != three;
+'
+
+# Test code for whether the C compiler supports C23 (complete).
+ac_c_conftest_c23_program="${ac_c_conftest_c23_globals}
+
+int
+main (int, char **)
+{
+  int ok = 0;
+  ${ac_c_conftest_c23_main}
+  return ok;
+}
+"
+
 # Test code for whether the C compiler supports C89 (global declarations)
 ac_c_conftest_c89_globals='
-/* Does the compiler advertise C89 conformance?
-   Do not test the value of __STDC__, because some compilers set it to 0
-   while being otherwise adequately conformant. */
-#if !defined __STDC__
-# error "Compiler does not advertise C89 conformance"
-#endif
+/* Do not test the value of __STDC__, because some compilers define it to 0
+   or do not define it, while otherwise adequately conforming.  */
 
 #include <stddef.h>
 #include <stdarg.h>
@@ -1933,9 +2026,7 @@ struct stat;
 /* Most of the following tests are stolen from RCS 5.7 src/conf.sh.  */
 struct buf { int x; };
 struct buf * (*rcsopen) (struct buf *, struct stat *, int);
-static char *e (p, i)
-     char **p;
-     int i;
+static char *e (char **p, int i)
 {
   return p[i];
 }
@@ -1949,6 +2040,21 @@ static char *f (char * (*g) (char **, int), char **p, ...)
   return s;
 }
 
+/* C89 style stringification. */
+#define noexpand_stringify(a) #a
+const char *stringified = noexpand_stringify(arbitrary+token=sequence);
+
+/* C89 style token pasting.  Exercises some of the corner cases that
+   e.g. old MSVC gets wrong, but not very hard. */
+#define noexpand_concat(a,b) a##b
+#define expand_concat(a,b) noexpand_concat(a,b)
+extern int vA;
+extern int vbee;
+#define aye A
+#define bee B
+int *pvA = &expand_concat(v,aye);
+int *pvbee = &noexpand_concat(v,bee);
+
 /* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
    function prototypes and stuff, but not \xHH hex character constants.
    These do not provoke an error unfortunately, instead are silently treated
@@ -1976,20 +2082,24 @@ ok |= (argc == 0 || f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]);
 
 # Test code for whether the C compiler supports C99 (global declarations)
 ac_c_conftest_c99_globals='
-// Does the compiler advertise C99 conformance?
+/* Does the compiler advertise C99 conformance? */
 #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 199901L
 # error "Compiler does not advertise C99 conformance"
 #endif
 
+// See if C++-style comments work.
+
 #include <stdbool.h>
 extern int puts (const char *);
 extern int printf (const char *, ...);
 extern int dprintf (int, const char *, ...);
 extern void *malloc (size_t);
+extern void free (void *);
 
 // Check varargs macros.  These examples are taken from C99 6.10.3.5.
 // dprintf is used instead of fprintf to avoid needing to declare
-// FILE and stderr.
+// FILE and stderr, and "aND" is used instead of "and" to work around
+// GCC bug 40564 which is irrelevant here.
 #define debug(...) dprintf (2, __VA_ARGS__)
 #define showlist(...) puts (#__VA_ARGS__)
 #define report(test,...) ((test) ? puts (#test) : printf (__VA_ARGS__))
@@ -2000,7 +2110,7 @@ test_varargs_macros (void)
   int y = 5678;
   debug ("Flag");
   debug ("X = %d\n", x);
-  showlist (The first, second, and third items.);
+  showlist (The first, second, aND third items.);
   report (x>y, "x is %d but y is %d", x, y);
 }
 
@@ -2035,7 +2145,6 @@ typedef const char *ccp;
 static inline int
 test_restrict (ccp restrict text)
 {
-  // See if C++-style comments work.
   // Iterate through items via the restricted pointer.
   // Also check for declarations in for loops.
   for (unsigned int i = 0; *(text+i) != '\''\0'\''; ++i)
@@ -2089,18 +2198,20 @@ ac_c_conftest_c99_main='
   // Check restrict.
   if (test_restrict ("String literal") == 0)
     success = true;
-  char *restrict newvar = "Another string";
+  const char *restrict newvar = "Another string";
 
   // Check varargs.
   success &= test_varargs ("s, d'\'' f .", "string", 65, 34.234);
   test_varargs_macros ();
 
   // Check flexible array members.
-  struct incomplete_array *ia =
-    malloc (sizeof (struct incomplete_array) + (sizeof (double) * 10));
+  static struct incomplete_array *volatile incomplete_array_pointer;
+  struct incomplete_array *ia = incomplete_array_pointer;
   ia->datasize = 10;
   for (int i = 0; i < ia->datasize; ++i)
     ia->data[i] = i * 1.234;
+  // Work around memory leak warnings.
+  free (ia);
 
   // Check named initializers.
   struct named_init ni = {
@@ -2111,18 +2222,17 @@ ac_c_conftest_c99_main='
 
   ni.number = 58;
 
-  int dynamic_array[ni.number];
-  dynamic_array[0] = argv[0][0];
-  dynamic_array[ni.number - 1] = 543;
+  // Do not test for VLAs, as some otherwise-conforming compilers lack them.
+  // C code should instead use __STDC_NO_VLA__; see Autoconf manual.
 
   // work around unused variable warnings
   ok |= (!success || bignum == 0LL || ubignum == 0uLL || newvar[0] == '\''x'\''
-	 || dynamic_array[ni.number - 1] != 543);
+	 || ni.number != 58);
 '
 
 # Test code for whether the C compiler supports C11 (global declarations)
 ac_c_conftest_c11_globals='
-// Does the compiler advertise C11 conformance?
+/* Does the compiler advertise C11 conformance? */
 #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112L
 # error "Compiler does not advertise C11 conformance"
 #endif
@@ -2240,7 +2350,7 @@ ac_aux_dir_candidates="${srcdir}/../build-scripts"
 # $ac_aux_dir_candidates and give up.
 ac_missing_aux_files=""
 ac_first_candidate=:
-printf "%s\n" "$as_me:${as_lineno-$LINENO}: looking for aux files: $ac_aux_files" >&5
+printf '%s\n' "$as_me:${as_lineno-$LINENO}: looking for aux files: $ac_aux_files" >&5
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 as_found=false
 for as_dir in $ac_aux_dir_candidates
@@ -2253,7 +2363,7 @@ do
   esac
   as_found=:
 
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}:  trying $as_dir" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}:  trying $as_dir" >&5
   ac_aux_dir_found=yes
   ac_install_sh=
   for ac_aux in $ac_aux_files
@@ -2264,13 +2374,13 @@ do
     if test x"$ac_aux" = x"install-sh"
     then
       if test -f "${as_dir}install-sh"; then
-        printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}install-sh found" >&5
+        printf '%s\n' "$as_me:${as_lineno-$LINENO}:   ${as_dir}install-sh found" >&5
         ac_install_sh="${as_dir}install-sh -c"
       elif test -f "${as_dir}install.sh"; then
-        printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}install.sh found" >&5
+        printf '%s\n' "$as_me:${as_lineno-$LINENO}:   ${as_dir}install.sh found" >&5
         ac_install_sh="${as_dir}install.sh -c"
       elif test -f "${as_dir}shtool"; then
-        printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}shtool found" >&5
+        printf '%s\n' "$as_me:${as_lineno-$LINENO}:   ${as_dir}shtool found" >&5
         ac_install_sh="${as_dir}shtool install -c"
       else
         ac_aux_dir_found=no
@@ -2282,7 +2392,7 @@ do
       fi
     else
       if test -f "${as_dir}${ac_aux}"; then
-        printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}${ac_aux} found" >&5
+        printf '%s\n' "$as_me:${as_lineno-$LINENO}:   ${as_dir}${ac_aux} found" >&5
       else
         ac_aux_dir_found=no
         if $ac_first_candidate; then
@@ -2305,8 +2415,9 @@ IFS=$as_save_IFS
 if $as_found
 then :
 
-else $as_nop
-  as_fn_error $? "cannot find required auxiliary files:$ac_missing_aux_files" "$LINENO" 5
+else case e in #(
+  e) as_fn_error $? "cannot find required auxiliary files:$ac_missing_aux_files" "$LINENO" 5 ;;
+esac
 fi
 
 
@@ -2334,38 +2445,44 @@ for ac_var in $ac_precious_vars; do
   eval ac_new_val=\$ac_env_${ac_var}_value
   case $ac_old_set,$ac_new_set in
     set,)
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
-printf "%s\n" "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
+      { printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: '$ac_var' was set to '$ac_old_val' in the previous run" >&5
+printf '%s\n' "$as_me: error: '$ac_var' was set to '$ac_old_val' in the previous run" >&2;}
       ac_cache_corrupted=: ;;
     ,set)
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
-printf "%s\n" "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
+      { printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: '$ac_var' was not set in the previous run" >&5
+printf '%s\n' "$as_me: error: '$ac_var' was not set in the previous run" >&2;}
       ac_cache_corrupted=: ;;
     ,);;
     *)
       if test "x$ac_old_val" != "x$ac_new_val"; then
 	# differences in whitespace do not lead to failure.
-	ac_old_val_w=`echo x $ac_old_val`
-	ac_new_val_w=`echo x $ac_new_val`
+	ac_old_val_w=
+	for ac_val in x $ac_old_val; do
+	  ac_old_val_w="$ac_old_val_w $ac_val"
+	done
+	ac_new_val_w=
+	for ac_val in x $ac_new_val; do
+	  ac_new_val_w="$ac_new_val_w $ac_val"
+	done
 	if test "$ac_old_val_w" != "$ac_new_val_w"; then
-	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
-printf "%s\n" "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
+	  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: '$ac_var' has changed since the previous run:" >&5
+printf '%s\n' "$as_me: error: '$ac_var' has changed since the previous run:" >&2;}
 	  ac_cache_corrupted=:
 	else
-	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
-printf "%s\n" "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
+	  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in '$ac_var' since the previous run:" >&5
+printf '%s\n' "$as_me: warning: ignoring whitespace changes in '$ac_var' since the previous run:" >&2;}
 	  eval $ac_var=\$ac_old_val
 	fi
-	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
-printf "%s\n" "$as_me:   former value:  \`$ac_old_val'" >&2;}
-	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
-printf "%s\n" "$as_me:   current value: \`$ac_new_val'" >&2;}
+	{ printf '%s\n' "$as_me:${as_lineno-$LINENO}:   former value:  '$ac_old_val'" >&5
+printf '%s\n' "$as_me:   former value:  '$ac_old_val'" >&2;}
+	{ printf '%s\n' "$as_me:${as_lineno-$LINENO}:   current value: '$ac_new_val'" >&5
+printf '%s\n' "$as_me:   current value: '$ac_new_val'" >&2;}
       fi;;
   esac
   # Pass precious variables to config.status.
   if test "$ac_new_set" = set; then
     case $ac_new_val in
-    *\'*) ac_arg=$ac_var=`printf "%s\n" "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
+    *\'*) ac_arg=$ac_var=`printf '%s\n' "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
     *) ac_arg=$ac_var=$ac_new_val ;;
     esac
     case " $ac_configure_args " in
@@ -2375,17 +2492,34 @@ printf "%s\n" "$as_me:   current value: \`$ac_new_val'" >&2;}
   fi
 done
 if $ac_cache_corrupted; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
-printf "%s\n" "$as_me: error: changes in the environment can compromise the build" >&2;}
-  as_fn_error $? "run \`${MAKE-make} distclean' and/or \`rm $cache_file'
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf '%s\n' "$as_me: error: in '$ac_pwd':" >&2;}
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
+printf '%s\n' "$as_me: error: changes in the environment can compromise the build" >&2;}
+  as_fn_error $? "run '${MAKE-make} distclean' and/or 'rm $cache_file'
 	    and start over" "$LINENO" 5
 fi
 ## -------------------- ##
 ## Main body of script. ##
 ## -------------------- ##
 
+
+# Determine whether it's possible to make 'echo' print without a newline.
+# These variables are no longer used directly by Autoconf, but are AC_SUBSTed
+# for compatibility with existing Makefiles.
+ECHO_C= ECHO_N= ECHO_T=
+case `echo -n x` in #(((((
+-n*)
+  case `echo 'xy\c'` in
+  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
+  xy)  ECHO_C='\c';;
+  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
+       ECHO_T='	';;
+  esac;;
+*)
+  ECHO_N='-n';;
+esac
+
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ -2403,23 +2537,24 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 $SHELL "${ac_aux_dir}config.sub" sun4 >/dev/null 2>&1 ||
   as_fn_error $? "cannot run $SHELL ${ac_aux_dir}config.sub" "$LINENO" 5
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking build system type" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking build system type" >&5
 printf %s "checking build system type... " >&6; }
 if test ${ac_cv_build+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_build_alias=$build_alias
+else case e in #(
+  e) ac_build_alias=$build_alias
 test "x$ac_build_alias" = x &&
   ac_build_alias=`$SHELL "${ac_aux_dir}config.guess"`
 test "x$ac_build_alias" = x &&
   as_fn_error $? "cannot guess build type; you must specify one" "$LINENO" 5
 ac_cv_build=`$SHELL "${ac_aux_dir}config.sub" $ac_build_alias` ||
   as_fn_error $? "$SHELL ${ac_aux_dir}config.sub $ac_build_alias failed" "$LINENO" 5
-
+ ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
-printf "%s\n" "$ac_cv_build" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
+printf '%s\n' "$ac_cv_build" >&6; }
 case $ac_cv_build in
 *-*-*) ;;
 *) as_fn_error $? "invalid value of canonical build" "$LINENO" 5;;
@@ -2435,25 +2570,26 @@ shift; shift
 # except with old shells:
 build_os=$*
 IFS=$ac_save_IFS
-case $build_os in *\ *) build_os=`echo "$build_os" | sed 's/ /-/g'`;; esac
+case $build_os in *\ *) build_os=`printf '%s\n' "$build_os" | sed 's/ /-/g'`;; esac
 
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking host system type" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking host system type" >&5
 printf %s "checking host system type... " >&6; }
 if test ${ac_cv_host+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "x$host_alias" = x; then
+else case e in #(
+  e) if test "x$host_alias" = x; then
   ac_cv_host=$ac_cv_build
 else
   ac_cv_host=`$SHELL "${ac_aux_dir}config.sub" $host_alias` ||
     as_fn_error $? "$SHELL ${ac_aux_dir}config.sub $host_alias failed" "$LINENO" 5
 fi
-
+ ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5
-printf "%s\n" "$ac_cv_host" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5
+printf '%s\n' "$ac_cv_host" >&6; }
 case $ac_cv_host in
 *-*-*) ;;
 *) as_fn_error $? "invalid value of canonical host" "$LINENO" 5;;
@@ -2469,7 +2605,10 @@ shift; shift
 # except with old shells:
 host_os=$*
 IFS=$ac_save_IFS
-case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac
+case $host_os in *\ *) host_os=`printf '%s\n' "$host_os" | sed 's/ /-/g'`;; esac
+
+
+
 
 
 
@@ -2490,13 +2629,13 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
 set dummy ${ac_tool_prefix}gcc; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC"; then
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -2511,22 +2650,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="${ac_tool_prefix}gcc"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
-printf "%s\n" "$CC" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf '%s\n' "$CC" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -2535,13 +2675,13 @@ if test -z "$ac_cv_prog_CC"; then
   ac_ct_CC=$CC
   # Extract the first word of "gcc", so it can be a program name with args.
 set dummy gcc; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_CC"; then
+else case e in #(
+  e) if test -n "$ac_ct_CC"; then
   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -2556,22 +2696,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_CC="gcc"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
-printf "%s\n" "$ac_ct_CC" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+printf '%s\n' "$ac_ct_CC" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
   if test "x$ac_ct_CC" = x; then
@@ -2579,8 +2720,8 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf '%s\n' "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     CC=$ac_ct_CC
@@ -2593,13 +2734,13 @@ if test -z "$CC"; then
           if test -n "$ac_tool_prefix"; then
     # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
 set dummy ${ac_tool_prefix}cc; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC"; then
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -2614,22 +2755,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="${ac_tool_prefix}cc"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
-printf "%s\n" "$CC" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf '%s\n' "$CC" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -2638,13 +2780,13 @@ fi
 if test -z "$CC"; then
   # Extract the first word of "cc", so it can be a program name with args.
 set dummy cc; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC"; then
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
   ac_prog_rejected=no
@@ -2664,7 +2806,7 @@ do
        continue
      fi
     ac_cv_prog_CC="cc"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -2683,15 +2825,16 @@ if test $ac_prog_rejected = yes; then
     ac_cv_prog_CC="$as_dir$ac_word${1+' '}$@"
   fi
 fi
-fi
+fi ;;
+esac
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
-printf "%s\n" "$CC" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf '%s\n' "$CC" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -2702,13 +2845,13 @@ if test -z "$CC"; then
   do
     # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
 set dummy $ac_tool_prefix$ac_prog; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC"; then
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -2723,22 +2866,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
-printf "%s\n" "$CC" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf '%s\n' "$CC" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -2751,13 +2895,13 @@ if test -z "$CC"; then
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_CC"; then
+else case e in #(
+  e) if test -n "$ac_ct_CC"; then
   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -2772,22 +2916,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_CC="$ac_prog"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
-printf "%s\n" "$ac_ct_CC" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+printf '%s\n' "$ac_ct_CC" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -2799,8 +2944,8 @@ done
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf '%s\n' "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     CC=$ac_ct_CC
@@ -2812,13 +2957,13 @@ if test -z "$CC"; then
   if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}clang", so it can be a program name with args.
 set dummy ${ac_tool_prefix}clang; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC"; then
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -2833,22 +2978,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="${ac_tool_prefix}clang"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
-printf "%s\n" "$CC" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf '%s\n' "$CC" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -2857,13 +3003,13 @@ if test -z "$ac_cv_prog_CC"; then
   ac_ct_CC=$CC
   # Extract the first word of "clang", so it can be a program name with args.
 set dummy clang; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_CC"; then
+else case e in #(
+  e) if test -n "$ac_ct_CC"; then
   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -2878,22 +3024,23 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_CC="clang"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
-printf "%s\n" "$ac_ct_CC" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+printf '%s\n' "$ac_ct_CC" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
   if test "x$ac_ct_CC" = x; then
@@ -2901,8 +3048,8 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf '%s\n' "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     CC=$ac_ct_CC
@@ -2914,13 +3061,13 @@ fi
 fi
 
 
-test -z "$CC" && { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+test -z "$CC" && { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf '%s\n' "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "no acceptable C compiler found in \$PATH
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
 
 # Provide some information about the compiler.
-printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
+printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
 set X $ac_compile
 ac_compiler=$2
 for ac_option in --version -v -V -qversion -version; do
@@ -2930,7 +3077,7 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-printf "%s\n" "$ac_try_echo"; } >&5
+printf '%s\n' "$ac_try_echo"; } >&5
   (eval "$ac_compiler $ac_option >&5") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
@@ -2940,7 +3087,7 @@ printf "%s\n" "$ac_try_echo"; } >&5
     cat conftest.er1 >&5
   fi
   rm -f conftest.er1 conftest.err
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }
 done
 
@@ -2960,9 +3107,9 @@ ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out"
 # Try to create an executable without -o first, disregard a.out.
 # It will help us diagnose broken compilers, and finding out an intuition
 # of exeext.
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5
 printf %s "checking whether the C compiler works... " >&6; }
-ac_link_default=`printf "%s\n" "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
+ac_link_default=`printf '%s\n' "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
 
 # The possible output files:
 ac_files="a.out conftest.exe conftest a.exe a_out.exe b.out conftest.*"
@@ -2983,14 +3130,14 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-printf "%s\n" "$ac_try_echo"; } >&5
+printf '%s\n' "$ac_try_echo"; } >&5
   (eval "$ac_link_default") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }
 then :
-  # Autoconf-2.13 could set the ac_cv_exeext variable to `no'.
-# So ignore a value of `no', otherwise this would lead to `EXEEXT = no'
+  # Autoconf-2.13 could set the ac_cv_exeext variable to 'no'.
+# So ignore a value of 'no', otherwise this would lead to 'EXEEXT = no'
 # in a Makefile.  We should not override ac_cv_exeext if it was cached,
 # so that the user can short-circuit this test for compilers unknown to
 # Autoconf.
@@ -3010,7 +3157,7 @@ do
 	   ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
 	fi
 	# We set ac_cv_exeext here because the later test for it is not
-	# safe: cross compilers may not add the suffix if given an `-o'
+	# safe: cross compilers may not add the suffix if given an '-o'
 	# argument, so we may need to know it at that point already.
 	# Even if this section looks crufty: it has the advantage of
 	# actually working.
@@ -3021,33 +3168,35 @@ do
 done
 test "$ac_cv_exeext" = no && ac_cv_exeext=
 
-else $as_nop
-  ac_file=''
+else case e in #(
+  e) ac_file='' ;;
+esac
 fi
 if test -z "$ac_file"
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
-printf "%s\n" "$as_me: failed program was:" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
+printf '%s\n' "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+{ { printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf '%s\n' "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error 77 "C compiler cannot create executables
-See \`config.log' for more details" "$LINENO" 5; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+See 'config.log' for more details" "$LINENO" 5; }
+else case e in #(
+  e) { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf '%s\n' "yes" >&6; } ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
 printf %s "checking for C compiler default output file name... " >&6; }
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5
-printf "%s\n" "$ac_file" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5
+printf '%s\n' "$ac_file" >&6; }
 ac_exeext=$ac_cv_exeext
 
 rm -f -r a.out a.out.dSYM a.exe conftest$ac_cv_exeext b.out
 ac_clean_files=$ac_clean_files_save
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5
 printf %s "checking for suffix of executables... " >&6; }
 if { { ac_try="$ac_link"
 case "(($ac_try" in
@@ -3055,16 +3204,16 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-printf "%s\n" "$ac_try_echo"; } >&5
+printf '%s\n' "$ac_try_echo"; } >&5
   (eval "$ac_link") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }
 then :
-  # If both `conftest.exe' and `conftest' are `present' (well, observable)
-# catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
-# work properly (i.e., refer to `conftest.exe'), while it won't with
-# `rm'.
+  # If both 'conftest.exe' and 'conftest' are 'present' (well, observable)
+# catch 'conftest.exe'.  For instance with Cygwin, 'ls conftest' will
+# work properly (i.e., refer to 'conftest.exe'), while it won't with
+# 'rm'.
 for ac_file in conftest.exe conftest conftest.*; do
   test -f "$ac_file" || continue
   case $ac_file in
@@ -3074,15 +3223,16 @@ for ac_file in conftest.exe conftest conftest.*; do
     * ) break;;
   esac
 done
-else $as_nop
-  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+else case e in #(
+  e) { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf '%s\n' "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "cannot compute suffix of executables: cannot compile and link
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; } ;;
+esac
 fi
 rm -f conftest conftest$ac_cv_exeext
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
-printf "%s\n" "$ac_cv_exeext" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
+printf '%s\n' "$ac_cv_exeext" >&6; }
 
 rm -f conftest.$ac_ext
 EXEEXT=$ac_cv_exeext
@@ -3094,6 +3244,8 @@ int
 main (void)
 {
 FILE *f = fopen ("conftest.out", "w");
+ if (!f)
+  return 1;
  return ferror (f) || fclose (f) != 0;
 
   ;
@@ -3103,7 +3255,7 @@ _ACEOF
 ac_clean_files="$ac_clean_files conftest.out"
 # Check that the compiler produces executables we can run.  If not, either
 # the compiler is broken, or we cross compile.
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5
 printf %s "checking whether we are cross compiling... " >&6; }
 if test "$cross_compiling" != yes; then
   { { ac_try="$ac_link"
@@ -3112,10 +3264,10 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-printf "%s\n" "$ac_try_echo"; } >&5
+printf '%s\n' "$ac_try_echo"; } >&5
   (eval "$ac_link") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }
   if { ac_try='./conftest$ac_cv_exeext'
   { { case "(($ac_try" in
@@ -3123,36 +3275,37 @@ printf "%s\n" "$ac_try_echo"; } >&5
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-printf "%s\n" "$ac_try_echo"; } >&5
+printf '%s\n' "$ac_try_echo"; } >&5
   (eval "$ac_try") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; }; then
     cross_compiling=no
   else
     if test "$cross_compiling" = maybe; then
 	cross_compiling=yes
     else
-	{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+	{ { printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf '%s\n' "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error 77 "cannot run C compiled programs.
-If you meant to cross compile, use \`--host'.
-See \`config.log' for more details" "$LINENO" 5; }
+If you meant to cross compile, use '--host'.
+See 'config.log' for more details" "$LINENO" 5; }
     fi
   fi
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
-printf "%s\n" "$cross_compiling" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
+printf '%s\n' "$cross_compiling" >&6; }
 
-rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out
+rm -f conftest.$ac_ext conftest$ac_cv_exeext \
+  conftest.o conftest.obj conftest.out
 ac_clean_files=$ac_clean_files_save
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
 printf %s "checking for suffix of object files... " >&6; }
 if test ${ac_cv_objext+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -3170,10 +3323,10 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-printf "%s\n" "$ac_try_echo"; } >&5
+printf '%s\n' "$ac_try_echo"; } >&5
   (eval "$ac_compile") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }
 then :
   for ac_file in conftest.o conftest.obj conftest.*; do
@@ -3184,28 +3337,30 @@ then :
        break;;
   esac
 done
-else $as_nop
-  printf "%s\n" "$as_me: failed program was:" >&5
+else case e in #(
+  e) printf '%s\n' "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+{ { printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf '%s\n' "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "cannot compute suffix of object files: cannot compile
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; } ;;
+esac
 fi
-rm -f conftest.$ac_cv_objext conftest.$ac_ext
+rm -f conftest.$ac_cv_objext conftest.$ac_ext ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
-printf "%s\n" "$ac_cv_objext" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
+printf '%s\n' "$ac_cv_objext" >&6; }
 OBJEXT=$ac_cv_objext
 ac_objext=$OBJEXT
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports GNU C" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports GNU C" >&5
 printf %s "checking whether the compiler supports GNU C... " >&6; }
 if test ${ac_cv_c_compiler_gnu+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -3222,15 +3377,17 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_compiler_gnu=yes
-else $as_nop
-  ac_compiler_gnu=no
+else case e in #(
+  e) ac_compiler_gnu=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 ac_cv_c_compiler_gnu=$ac_compiler_gnu
-
+ ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
-printf "%s\n" "$ac_cv_c_compiler_gnu" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
+printf '%s\n' "$ac_cv_c_compiler_gnu" >&6; }
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 if test $ac_compiler_gnu = yes; then
@@ -3240,13 +3397,13 @@ else
 fi
 ac_test_CFLAGS=${CFLAGS+y}
 ac_save_CFLAGS=$CFLAGS
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
 printf %s "checking whether $CC accepts -g... " >&6; }
 if test ${ac_cv_prog_cc_g+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_save_c_werror_flag=$ac_c_werror_flag
+else case e in #(
+  e) ac_save_c_werror_flag=$ac_c_werror_flag
    ac_c_werror_flag=yes
    ac_cv_prog_cc_g=no
    CFLAGS="-g"
@@ -3264,8 +3421,8 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_prog_cc_g=yes
-else $as_nop
-  CFLAGS=""
+else case e in #(
+  e) CFLAGS=""
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -3280,8 +3437,8 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
 
-else $as_nop
-  ac_c_werror_flag=$ac_save_c_werror_flag
+else case e in #(
+  e) ac_c_werror_flag=$ac_save_c_werror_flag
 	 CFLAGS="-g"
 	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -3298,15 +3455,18 @@ if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_prog_cc_g=yes
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+   ac_c_werror_flag=$ac_save_c_werror_flag ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-   ac_c_werror_flag=$ac_save_c_werror_flag
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
-printf "%s\n" "$ac_cv_prog_cc_g" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
+printf '%s\n' "$ac_cv_prog_cc_g" >&6; }
 if test $ac_test_CFLAGS; then
   CFLAGS=$ac_save_CFLAGS
 elif test $ac_cv_prog_cc_g = yes; then
@@ -3325,19 +3485,68 @@ fi
 ac_prog_cc_stdc=no
 if test x$ac_prog_cc_stdc = xno
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C11 features" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C23 features" >&5
+printf %s "checking for $CC option to enable C23 features... " >&6; }
+if test ${ac_cv_prog_cc_c23+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_cv_prog_cc_c23=no
+ac_save_CC=$CC
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$ac_c_conftest_c23_program
+_ACEOF
+for ac_arg in '' -std=gnu23
+do
+  CC="$ac_save_CC $ac_arg"
+  if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_prog_cc_c23=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam
+  test "x$ac_cv_prog_cc_c23" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CC=$ac_save_CC ;;
+esac
+fi
+
+if test "x$ac_cv_prog_cc_c23" = xno
+then :
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+printf '%s\n' "unsupported" >&6; }
+else case e in #(
+  e) if test "x$ac_cv_prog_cc_c23" = x
+then :
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+printf '%s\n' "none needed" >&6; }
+else case e in #(
+  e) { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c23" >&5
+printf '%s\n' "$ac_cv_prog_cc_c23" >&6; }
+     CC="$CC $ac_cv_prog_cc_c23" ;;
+esac
+fi
+  ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c23
+  ac_prog_cc_stdc=c23 ;;
+esac
+fi
+fi
+if test x$ac_prog_cc_stdc = xno
+then :
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C11 features" >&5
 printf %s "checking for $CC option to enable C11 features... " >&6; }
 if test ${ac_cv_prog_cc_c11+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_prog_cc_c11=no
+else case e in #(
+  e) ac_cv_prog_cc_c11=no
 ac_save_CC=$CC
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $ac_c_conftest_c11_program
 _ACEOF
-for ac_arg in '' -std=gnu11
+for ac_arg in '' -std=gnu11 -std:c11
 do
   CC="$ac_save_CC $ac_arg"
   if ac_fn_c_try_compile "$LINENO"
@@ -3348,36 +3557,39 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam
   test "x$ac_cv_prog_cc_c11" != "xno" && break
 done
 rm -f conftest.$ac_ext
-CC=$ac_save_CC
+CC=$ac_save_CC ;;
+esac
 fi
 
 if test "x$ac_cv_prog_cc_c11" = xno
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
-printf "%s\n" "unsupported" >&6; }
-else $as_nop
-  if test "x$ac_cv_prog_cc_c11" = x
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+printf '%s\n' "unsupported" >&6; }
+else case e in #(
+  e) if test "x$ac_cv_prog_cc_c11" = x
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
-printf "%s\n" "none needed" >&6; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c11" >&5
-printf "%s\n" "$ac_cv_prog_cc_c11" >&6; }
-     CC="$CC $ac_cv_prog_cc_c11"
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+printf '%s\n' "none needed" >&6; }
+else case e in #(
+  e) { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c11" >&5
+printf '%s\n' "$ac_cv_prog_cc_c11" >&6; }
+     CC="$CC $ac_cv_prog_cc_c11" ;;
+esac
 fi
   ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c11
-  ac_prog_cc_stdc=c11
+  ac_prog_cc_stdc=c11 ;;
+esac
 fi
 fi
 if test x$ac_prog_cc_stdc = xno
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C99 features" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C99 features" >&5
 printf %s "checking for $CC option to enable C99 features... " >&6; }
 if test ${ac_cv_prog_cc_c99+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_prog_cc_c99=no
+else case e in #(
+  e) ac_cv_prog_cc_c99=no
 ac_save_CC=$CC
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -3394,36 +3606,39 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam
   test "x$ac_cv_prog_cc_c99" != "xno" && break
 done
 rm -f conftest.$ac_ext
-CC=$ac_save_CC
+CC=$ac_save_CC ;;
+esac
 fi
 
 if test "x$ac_cv_prog_cc_c99" = xno
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
-printf "%s\n" "unsupported" >&6; }
-else $as_nop
-  if test "x$ac_cv_prog_cc_c99" = x
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+printf '%s\n' "unsupported" >&6; }
+else case e in #(
+  e) if test "x$ac_cv_prog_cc_c99" = x
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
-printf "%s\n" "none needed" >&6; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c99" >&5
-printf "%s\n" "$ac_cv_prog_cc_c99" >&6; }
-     CC="$CC $ac_cv_prog_cc_c99"
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+printf '%s\n' "none needed" >&6; }
+else case e in #(
+  e) { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c99" >&5
+printf '%s\n' "$ac_cv_prog_cc_c99" >&6; }
+     CC="$CC $ac_cv_prog_cc_c99" ;;
+esac
 fi
   ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c99
-  ac_prog_cc_stdc=c99
+  ac_prog_cc_stdc=c99 ;;
+esac
 fi
 fi
 if test x$ac_prog_cc_stdc = xno
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C89 features" >&5
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C89 features" >&5
 printf %s "checking for $CC option to enable C89 features... " >&6; }
 if test ${ac_cv_prog_cc_c89+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_prog_cc_c89=no
+else case e in #(
+  e) ac_cv_prog_cc_c89=no
 ac_save_CC=$CC
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -3440,25 +3655,28 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam
   test "x$ac_cv_prog_cc_c89" != "xno" && break
 done
 rm -f conftest.$ac_ext
-CC=$ac_save_CC
+CC=$ac_save_CC ;;
+esac
 fi
 
 if test "x$ac_cv_prog_cc_c89" = xno
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
-printf "%s\n" "unsupported" >&6; }
-else $as_nop
-  if test "x$ac_cv_prog_cc_c89" = x
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+printf '%s\n' "unsupported" >&6; }
+else case e in #(
+  e) if test "x$ac_cv_prog_cc_c89" = x
 then :
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
-printf "%s\n" "none needed" >&6; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
-printf "%s\n" "$ac_cv_prog_cc_c89" >&6; }
-     CC="$CC $ac_cv_prog_cc_c89"
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+printf '%s\n' "none needed" >&6; }
+else case e in #(
+  e) { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
+printf '%s\n' "$ac_cv_prog_cc_c89" >&6; }
+     CC="$CC $ac_cv_prog_cc_c89" ;;
+esac
 fi
   ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c89
-  ac_prog_cc_stdc=c89
+  ac_prog_cc_stdc=c89 ;;
+esac
 fi
 fi
 
@@ -3470,13 +3688,13 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for an ANSI C-conforming const" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for an ANSI C-conforming const" >&5
 printf %s "checking for an ANSI C-conforming const... " >&6; }
 if test ${ac_cv_c_const+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -3511,15 +3729,12 @@ main (void)
     *t++ = 0;
     if (s) return 0;
   }
-  { /* Someone thinks the Sun supposedly-ANSI compiler will reject this.  */
+  { /* Derived from code rejected by Sun C 1.0 and similar vintage.  */
     int x[] = {25, 17};
-    const int *foo = &x[0];
+    typedef int const *iptr;
+    iptr foo = &x[0];
     ++foo;
-  }
-  { /* Sun SC1.0 ANSI compiler rejects this -- but not the above. */
-    typedef const int *iptr;
-    iptr p = 0;
-    ++p;
+    if (!*foo) return 0;
   }
   { /* IBM XL C 1.02.0.0 rejects this sort of thing, saying
        "k.c", line 2.27: 1506-025 (S) Operand must be a modifiable lvalue. */
@@ -3540,16 +3755,18 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_c_const=yes
-else $as_nop
-  ac_cv_c_const=no
+else case e in #(
+  e) ac_cv_c_const=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_const" >&5
-printf "%s\n" "$ac_cv_c_const" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_const" >&5
+printf '%s\n' "$ac_cv_c_const" >&6; }
 if test $ac_cv_c_const = no; then
 
-printf "%s\n" "#define const /**/" >>confdefs.h
+printf '%s\n' "#define const /**/" >>confdefs.h
 
 fi
 
@@ -3590,13 +3807,13 @@ case "$host" in
         MATHLIB=""
         # Extract the first word of "osmesa-config", so it can be a program name with args.
 set dummy osmesa-config; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_OSMESA_CONFIG+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $OSMESA_CONFIG in
+else case e in #(
+  e) case $OSMESA_CONFIG in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_OSMESA_CONFIG="$OSMESA_CONFIG" # Let the user override the test with a path.
   ;;
@@ -3613,7 +3830,7 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_path_OSMESA_CONFIG="$as_dir$ac_word$ac_exec_ext"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -3622,15 +3839,16 @@ IFS=$as_save_IFS
 
   test -z "$ac_cv_path_OSMESA_CONFIG" && ac_cv_path_OSMESA_CONFIG="no"
   ;;
+esac ;;
 esac
 fi
 OSMESA_CONFIG=$ac_cv_path_OSMESA_CONFIG
 if test -n "$OSMESA_CONFIG"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $OSMESA_CONFIG" >&5
-printf "%s\n" "$OSMESA_CONFIG" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $OSMESA_CONFIG" >&5
+printf '%s\n' "$OSMESA_CONFIG" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -3668,21 +3886,27 @@ fi
                 ISUNIX="true"
         EXE=""
         MATHLIB="-lm"
-                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for glBegin in -lOpenGL" >&5
+                { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for glBegin in -lOpenGL" >&5
 printf %s "checking for glBegin in -lOpenGL... " >&6; }
 if test ${ac_cv_lib_OpenGL_glBegin+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lOpenGL  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char glBegin ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char glBegin (void);
 int
 main (void)
 {
@@ -3694,20 +3918,23 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_OpenGL_glBegin=yes
-else $as_nop
-  ac_cv_lib_OpenGL_glBegin=no
+else case e in #(
+  e) ac_cv_lib_OpenGL_glBegin=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_OpenGL_glBegin" >&5
-printf "%s\n" "$ac_cv_lib_OpenGL_glBegin" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_OpenGL_glBegin" >&5
+printf '%s\n' "$ac_cv_lib_OpenGL_glBegin" >&6; }
 if test "x$ac_cv_lib_OpenGL_glBegin" = xyes
 then :
   SYS_GL_LIBS="-lOpenGL"
-else $as_nop
-  SYS_GL_LIBS="-lGL"
+else case e in #(
+  e) SYS_GL_LIBS="-lGL" ;;
+esac
 fi
 
         ;;
@@ -3730,13 +3957,13 @@ if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
 	if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
 set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_PKG_CONFIG+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $PKG_CONFIG in
+else case e in #(
+  e) case $PKG_CONFIG in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_PKG_CONFIG="$PKG_CONFIG" # Let the user override the test with a path.
   ;;
@@ -3753,7 +3980,7 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_path_PKG_CONFIG="$as_dir$ac_word$ac_exec_ext"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -3761,15 +3988,16 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 PKG_CONFIG=$ac_cv_path_PKG_CONFIG
 if test -n "$PKG_CONFIG"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKG_CONFIG" >&5
-printf "%s\n" "$PKG_CONFIG" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $PKG_CONFIG" >&5
+printf '%s\n' "$PKG_CONFIG" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
@@ -3778,13 +4006,13 @@ if test -z "$ac_cv_path_PKG_CONFIG"; then
   ac_pt_PKG_CONFIG=$PKG_CONFIG
   # Extract the first word of "pkg-config", so it can be a program name with args.
 set dummy pkg-config; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_ac_pt_PKG_CONFIG+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $ac_pt_PKG_CONFIG in
+else case e in #(
+  e) case $ac_pt_PKG_CONFIG in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_ac_pt_PKG_CONFIG="$ac_pt_PKG_CONFIG" # Let the user override the test with a path.
   ;;
@@ -3801,7 +4029,7 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_path_ac_pt_PKG_CONFIG="$as_dir$ac_word$ac_exec_ext"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -3809,15 +4037,16 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 ac_pt_PKG_CONFIG=$ac_cv_path_ac_pt_PKG_CONFIG
 if test -n "$ac_pt_PKG_CONFIG"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKG_CONFIG" >&5
-printf "%s\n" "$ac_pt_PKG_CONFIG" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKG_CONFIG" >&5
+printf '%s\n' "$ac_pt_PKG_CONFIG" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
   if test "x$ac_pt_PKG_CONFIG" = x; then
@@ -3825,8 +4054,8 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf '%s\n' "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     PKG_CONFIG=$ac_pt_PKG_CONFIG
@@ -3838,14 +4067,14 @@ fi
 fi
 if test -n "$PKG_CONFIG"; then
 	_pkg_min_version=0.9.0
-	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking pkg-config is at least version $_pkg_min_version" >&5
+	{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking pkg-config is at least version $_pkg_min_version" >&5
 printf %s "checking pkg-config is at least version $_pkg_min_version... " >&6; }
 	if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
-		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+		{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf '%s\n' "yes" >&6; }
 	else
-		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+		{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 		PKG_CONFIG=""
 	fi
 fi
@@ -3854,8 +4083,9 @@ fi
 if test ${with_sdl_prefix+y}
 then :
   withval=$with_sdl_prefix; sdl_prefix="$withval"
-else $as_nop
-  sdl_prefix=""
+else case e in #(
+  e) sdl_prefix="" ;;
+esac
 fi
 
 
@@ -3863,16 +4093,18 @@ fi
 if test ${with_sdl_exec_prefix+y}
 then :
   withval=$with_sdl_exec_prefix; sdl_exec_prefix="$withval"
-else $as_nop
-  sdl_exec_prefix=""
+else case e in #(
+  e) sdl_exec_prefix="" ;;
+esac
 fi
 
 # Check whether --enable-sdltest was given.
 if test ${enable_sdltest+y}
 then :
   enableval=$enable_sdltest;
-else $as_nop
-  enable_sdltest=yes
+else case e in #(
+  e) enable_sdltest=yes ;;
+esac
 fi
 
 
@@ -3881,17 +4113,17 @@ fi
   if test "x$sdl_prefix$sdl_exec_prefix" = x ; then
 
 pkg_failed=no
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for sdl2 >= $min_sdl_version" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for sdl2 >= $min_sdl_version" >&5
 printf %s "checking for sdl2 >= $min_sdl_version... " >&6; }
 
 if test -n "$SDL_CFLAGS"; then
     pkg_cv_SDL_CFLAGS="$SDL_CFLAGS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"sdl2 >= \$min_sdl_version\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"sdl2 >= \$min_sdl_version\""; } >&5
   ($PKG_CONFIG --exists --print-errors "sdl2 >= $min_sdl_version") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_SDL_CFLAGS=`$PKG_CONFIG --cflags "sdl2 >= $min_sdl_version" 2>/dev/null`
 else
@@ -3904,10 +4136,10 @@ if test -n "$SDL_LIBS"; then
     pkg_cv_SDL_LIBS="$SDL_LIBS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"sdl2 >= \$min_sdl_version\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"sdl2 >= \$min_sdl_version\""; } >&5
   ($PKG_CONFIG --exists --print-errors "sdl2 >= $min_sdl_version") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_SDL_LIBS=`$PKG_CONFIG --libs "sdl2 >= $min_sdl_version" 2>/dev/null`
 else
@@ -3920,8 +4152,8 @@ fi
 
 
 if test $pkg_failed = yes; then
-   	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+   	{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 
 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
         _pkg_short_errors_supported=yes
@@ -3938,14 +4170,14 @@ fi
 
 	sdl_pc=no
 elif test $pkg_failed = untried; then
-     	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+     	{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 	sdl_pc=no
 else
 	SDL_CFLAGS=$pkg_cv_SDL_CFLAGS
 	SDL_LIBS=$pkg_cv_SDL_LIBS
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf '%s\n' "yes" >&6; }
 	sdl_pc=yes
 fi
   else
@@ -3974,13 +4206,13 @@ fi
     fi
     # Extract the first word of "sdl2-config", so it can be a program name with args.
 set dummy sdl2-config; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_SDL2_CONFIG+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $SDL2_CONFIG in
+else case e in #(
+  e) case $SDL2_CONFIG in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_SDL2_CONFIG="$SDL2_CONFIG" # Let the user override the test with a path.
   ;;
@@ -3997,7 +4229,7 @@ do
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_path_SDL2_CONFIG="$as_dir$ac_word$ac_exec_ext"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -4006,20 +4238,21 @@ IFS=$as_save_IFS
 
   test -z "$ac_cv_path_SDL2_CONFIG" && ac_cv_path_SDL2_CONFIG="no"
   ;;
+esac ;;
 esac
 fi
 SDL2_CONFIG=$ac_cv_path_SDL2_CONFIG
 if test -n "$SDL2_CONFIG"; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $SDL2_CONFIG" >&5
-printf "%s\n" "$SDL2_CONFIG" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $SDL2_CONFIG" >&5
+printf '%s\n' "$SDL2_CONFIG" >&6; }
 else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 fi
 
 
     PATH="$as_save_PATH"
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for SDL - version >= $min_sdl_version" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for SDL - version >= $min_sdl_version" >&5
 printf %s "checking for SDL - version >= $min_sdl_version... " >&6; }
     no_sdl=""
 
@@ -4046,8 +4279,8 @@ printf %s "checking for SDL - version >= $min_sdl_version... " >&6; }
       if test "$cross_compiling" = yes
 then :
   echo $ac_n "cross compiling; assumed OK... $ac_c"
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <stdio.h>
@@ -4089,11 +4322,13 @@ _ACEOF
 if ac_fn_c_try_run "$LINENO"
 then :
 
-else $as_nop
-  no_sdl=yes
+else case e in #(
+  e) no_sdl=yes ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 
         CFLAGS="$ac_save_CFLAGS"
@@ -4102,11 +4337,11 @@ fi
       fi
     fi
     if test "x$no_sdl" = x ; then
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+      { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf '%s\n' "yes" >&6; }
     else
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+      { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
     fi
   fi
   if test "x$no_sdl" = x ; then
@@ -4155,11 +4390,12 @@ then :
 	  echo "***"
           echo "*** If you have an old version installed, it is best to remove it, although"
           echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"
-else $as_nop
-   echo "*** The test program failed to compile or link. See the file config.log for the"
+else case e in #(
+  e)  echo "*** The test program failed to compile or link. See the file config.log for the"
           echo "*** exact error that occured. This usually means SDL was incorrectly installed"
           echo "*** or that you have moved SDL since it was installed. In the latter case, you"
-          echo "*** may want to edit the sdl2-config script: $SDL2_CONFIG"
+          echo "*** may want to edit the sdl2-config script: $SDL2_CONFIG"  ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
@@ -4185,7 +4421,7 @@ ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
 printf %s "checking how to run the C preprocessor... " >&6; }
 # On Suns, sometimes $CPP names a directory.
 if test -n "$CPP" && test -d "$CPP"; then
@@ -4195,8 +4431,8 @@ if test -z "$CPP"; then
   if test ${ac_cv_prog_CPP+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-      # Double quotes because $CC needs to be expanded
+else case e in #(
+  e)     # Double quotes because $CC needs to be expanded
     for CPP in "$CC -E" "$CC -E -traditional-cpp" cpp /lib/cpp
     do
       ac_preproc_ok=false
@@ -4214,9 +4450,10 @@ _ACEOF
 if ac_fn_c_try_cpp "$LINENO"
 then :
 
-else $as_nop
-  # Broken: fails on valid input.
-continue
+else case e in #(
+  e) # Broken: fails on valid input.
+continue ;;
+esac
 fi
 rm -f conftest.err conftest.i conftest.$ac_ext
 
@@ -4230,15 +4467,16 @@ if ac_fn_c_try_cpp "$LINENO"
 then :
   # Broken: success on invalid input.
 continue
-else $as_nop
-  # Passes both tests.
+else case e in #(
+  e) # Passes both tests.
 ac_preproc_ok=:
-break
+break ;;
+esac
 fi
 rm -f conftest.err conftest.i conftest.$ac_ext
 
 done
-# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+# Because of 'break', _AC_PREPROC_IFELSE's cleaning code was skipped.
 rm -f conftest.i conftest.err conftest.$ac_ext
 if $ac_preproc_ok
 then :
@@ -4247,14 +4485,15 @@ fi
 
     done
     ac_cv_prog_CPP=$CPP
-
+   ;;
+esac
 fi
   CPP=$ac_cv_prog_CPP
 else
   ac_cv_prog_CPP=$CPP
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
-printf "%s\n" "$CPP" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
+printf '%s\n' "$CPP" >&6; }
 ac_preproc_ok=false
 for ac_c_preproc_warn_flag in '' yes
 do
@@ -4270,9 +4509,10 @@ _ACEOF
 if ac_fn_c_try_cpp "$LINENO"
 then :
 
-else $as_nop
-  # Broken: fails on valid input.
-continue
+else case e in #(
+  e) # Broken: fails on valid input.
+continue ;;
+esac
 fi
 rm -f conftest.err conftest.i conftest.$ac_ext
 
@@ -4286,24 +4526,26 @@ if ac_fn_c_try_cpp "$LINENO"
 then :
   # Broken: success on invalid input.
 continue
-else $as_nop
-  # Passes both tests.
+else case e in #(
+  e) # Passes both tests.
 ac_preproc_ok=:
-break
+break ;;
+esac
 fi
 rm -f conftest.err conftest.i conftest.$ac_ext
 
 done
-# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+# Because of 'break', _AC_PREPROC_IFELSE's cleaning code was skipped.
 rm -f conftest.i conftest.err conftest.$ac_ext
 if $ac_preproc_ok
 then :
 
-else $as_nop
-  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+else case e in #(
+  e) { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf '%s\n' "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; } ;;
+esac
 fi
 
 ac_ext=c
@@ -4313,7 +4555,7 @@ ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for X" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for X" >&5
 printf %s "checking for X... " >&6; }
 
 
@@ -4323,7 +4565,7 @@ then :
   withval=$with_x;
 fi
 
-# $have_x is `yes', `no', `disabled', or empty when we do not yet know.
+# $have_x is 'yes', 'no', 'disabled', or empty when we do not yet know.
 if test "x$with_x" = xno; then
   # The user explicitly disabled X.
   have_x=disabled
@@ -4333,8 +4575,8 @@ else
     *,NONE | NONE,*) if test ${ac_cv_have_x+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  # One or both of the vars are not set, and there is no cached value.
+else case e in #(
+  e) # One or both of the vars are not set, and there is no cached value.
 ac_x_includes=no
 ac_x_libraries=no
 # Do we need to do anything special at all?
@@ -4369,11 +4611,11 @@ if mkdir conftest.dir; then
   cd conftest.dir
   cat >Imakefile <<'_ACEOF'
 incroot:
-	@echo incroot='${INCROOT}'
+	@printf '%s\n' incroot='${INCROOT}'
 usrlibdir:
-	@echo usrlibdir='${USRLIBDIR}'
+	@printf '%s\n' usrlibdir='${USRLIBDIR}'
 libdir:
-	@echo libdir='${LIBDIR}'
+	@printf '%s\n' libdir='${LIBDIR}'
 _ACEOF
   if (export CC; ${XMKMF-xmkmf}) >/dev/null 2>/dev/null && test -f Makefile; then
     # GNU make sometimes prints "make[1]: Entering ...", which would confuse us.
@@ -4457,13 +4699,14 @@ if ac_fn_c_try_cpp "$LINENO"
 then :
   # We can compile using X headers with no special include directory.
 ac_x_includes=
-else $as_nop
-  for ac_dir in $ac_x_header_dirs; do
+else case e in #(
+  e) for ac_dir in $ac_x_header_dirs; do
   if test -r "$ac_dir/X11/Xlib.h"; then
     ac_x_includes=$ac_dir
     break
   fi
-done
+done ;;
+esac
 fi
 rm -f conftest.err conftest.i conftest.$ac_ext
 fi # $ac_x_includes = no
@@ -4490,9 +4733,9 @@ then :
   LIBS=$ac_save_LIBS
 # We can link X programs with no special library path.
 ac_x_libraries=
-else $as_nop
-  LIBS=$ac_save_LIBS
-for ac_dir in `printf "%s\n" "$ac_x_includes $ac_x_header_dirs" | sed s/include/lib/g`
+else case e in #(
+  e) LIBS=$ac_save_LIBS
+for ac_dir in `printf '%s\n' "$ac_x_includes $ac_x_header_dirs" | sed s/include/lib/g`
 do
   # Don't even attempt the hair of trying to link an X program!
   for ac_extension in a so sl dylib la dll; do
@@ -4501,7 +4744,8 @@ do
       break 2
     fi
   done
-done
+done ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
@@ -4518,6 +4762,7 @@ case $ac_x_includes,$ac_x_libraries in #(
     ac_cv_have_x="have_x=yes\
 	ac_x_includes='$ac_x_includes'\
 	ac_x_libraries='$ac_x_libraries'" ;;
+esac ;;
 esac
 fi
 ;; #(
@@ -4527,8 +4772,8 @@ fi
 fi # $with_x != no
 
 if test "$have_x" != yes; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_x" >&5
-printf "%s\n" "$have_x" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_x" >&5
+printf '%s\n' "$have_x" >&6; }
   no_x=yes
 else
   # If each of the values was on the command line, it overrides each guess.
@@ -4538,8 +4783,8 @@ else
   ac_cv_have_x="have_x=yes\
 	ac_x_includes='$x_includes'\
 	ac_x_libraries='$x_libraries'"
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: libraries $x_libraries, headers $x_includes" >&5
-printf "%s\n" "libraries $x_libraries, headers $x_includes" >&6; }
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: libraries $x_libraries, headers $x_includes" >&5
+printf '%s\n' "libraries $x_libraries, headers $x_includes" >&6; }
 fi
 
 if test x$have_x = xyes; then
@@ -4561,7 +4806,7 @@ if test x$have_x = xyes; then
     fi
 fi
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for OpenGL support" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for OpenGL support" >&5
 printf %s "checking for OpenGL support... " >&6; }
 have_opengl=no
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -4585,10 +4830,10 @@ then :
   have_opengl=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_opengl" >&5
-printf "%s\n" "$have_opengl" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_opengl" >&5
+printf '%s\n' "$have_opengl" >&6; }
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for OpenGL ES support" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for OpenGL ES support" >&5
 printf %s "checking for OpenGL ES support... " >&6; }
 have_opengles=no
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -4612,10 +4857,10 @@ then :
   have_opengles=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_opengles" >&5
-printf "%s\n" "$have_opengles" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_opengles" >&5
+printf '%s\n' "$have_opengles" >&6; }
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for OpenGL ES2 support" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for OpenGL ES2 support" >&5
 printf %s "checking for OpenGL ES2 support... " >&6; }
 have_opengles2=no
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -4639,8 +4884,8 @@ then :
   have_opengles2=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_opengles2" >&5
-printf "%s\n" "$have_opengles2" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_opengles2" >&5
+printf '%s\n' "$have_opengles2" >&6; }
 
 GLLIB=""
 GLESLIB=""
@@ -4664,7 +4909,7 @@ if test x$have_opengl = xyes; then
     OPENGL_TARGETS="TARGETS"
 fi
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GCC -Wformat" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for GCC -Wformat" >&5
 printf %s "checking for GCC -Wformat... " >&6; }
 have_wformat=no
 save_CFLAGS="$CFLAGS"
@@ -4685,14 +4930,14 @@ then :
   have_wformat=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_wformat" >&5
-printf "%s\n" "$have_wformat" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_wformat" >&5
+printf '%s\n' "$have_wformat" >&6; }
 CFLAGS="$save_CFLAGS"
 if test x$have_wformat = xyes; then
     CFLAGS="$CFLAGS -DHAVE_WFORMAT"
 fi
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GCC -Wformat-overflow" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for GCC -Wformat-overflow" >&5
 printf %s "checking for GCC -Wformat-overflow... " >&6; }
 have_wformat_overflow=no
 save_CFLAGS="$CFLAGS"
@@ -4713,14 +4958,14 @@ then :
   have_wformat_overflow=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_wformat_overflow" >&5
-printf "%s\n" "$have_wformat_overflow" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_wformat_overflow" >&5
+printf '%s\n' "$have_wformat_overflow" >&6; }
 CFLAGS="$save_CFLAGS"
 if test x$have_wformat_overflow = xyes; then
     CFLAGS="$CFLAGS -DHAVE_WFORMAT_OVERFLOW"
 fi
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GCC -Wformat-extra-args" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for GCC -Wformat-extra-args" >&5
 printf %s "checking for GCC -Wformat-extra-args... " >&6; }
 have_wformat_extra_args=no
 save_CFLAGS="$CFLAGS"
@@ -4741,8 +4986,8 @@ then :
   have_wformat_extra_args=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_wformat_extra_args" >&5
-printf "%s\n" "$have_wformat_extra_args" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_wformat_extra_args" >&5
+printf '%s\n' "$have_wformat_extra_args" >&6; }
 CFLAGS="$save_CFLAGS"
 if test x$have_wformat_extra_args = xyes; then
     CFLAGS="$CFLAGS -DHAVE_WFORMAT_EXTRA_ARGS"
@@ -4752,12 +4997,13 @@ fi
 if test ${enable_werror+y}
 then :
   enableval=$enable_werror; enable_werror=$enableval
-else $as_nop
-  enable_werror=no
+else case e in #(
+  e) enable_werror=no ;;
+esac
 fi
 
 if test x$enable_werror = xyes; then
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GCC -Werror option" >&5
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for GCC -Werror option" >&5
 printf %s "checking for GCC -Werror option... " >&6; }
     have_gcc_werror=no
 
@@ -4779,8 +5025,8 @@ then :
   have_gcc_werror=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_gcc_werror" >&5
-printf "%s\n" "$have_gcc_werror" >&6; }
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_gcc_werror" >&5
+printf '%s\n' "$have_gcc_werror" >&6; }
     CFLAGS="$save_CFLAGS"
 
     if test x$have_gcc_werror = xyes; then
@@ -4790,7 +5036,7 @@ fi
 
 case "$host" in
     *-ios-*|*-*-darwin* )
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GCC -Wno-error=deprecated-declarations option" >&5
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for GCC -Wno-error=deprecated-declarations option" >&5
 printf %s "checking for GCC -Wno-error=deprecated-declarations option... " >&6; }
         have_gcc_wno_error_deprecated_declarations=no
 
@@ -4814,8 +5060,8 @@ then :
   have_gcc_wno_error_deprecated_declarations=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_gcc_werror" >&5
-printf "%s\n" "$have_gcc_werror" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $have_gcc_werror" >&5
+printf '%s\n' "$have_gcc_werror" >&6; }
         CFLAGS="$save_CFLAGS"
 
         if test x$have_gcc_wno_error_deprecated_declarations = xyes; then
@@ -4832,21 +5078,27 @@ esac
 
 
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for TTF_Init in -lSDL2_ttf" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for TTF_Init in -lSDL2_ttf" >&5
 printf %s "checking for TTF_Init in -lSDL2_ttf... " >&6; }
 if test ${ac_cv_lib_SDL2_ttf_TTF_Init+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lSDL2_ttf  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char TTF_Init ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char TTF_Init (void);
 int
 main (void)
 {
@@ -4858,15 +5110,17 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_SDL2_ttf_TTF_Init=yes
-else $as_nop
-  ac_cv_lib_SDL2_ttf_TTF_Init=no
+else case e in #(
+  e) ac_cv_lib_SDL2_ttf_TTF_Init=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_SDL2_ttf_TTF_Init" >&5
-printf "%s\n" "$ac_cv_lib_SDL2_ttf_TTF_Init" >&6; }
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_SDL2_ttf_TTF_Init" >&5
+printf '%s\n' "$ac_cv_lib_SDL2_ttf_TTF_Init" >&6; }
 if test "x$ac_cv_lib_SDL2_ttf_TTF_Init" = xyes
 then :
   have_SDL_ttf=yes
@@ -4880,17 +5134,17 @@ fi
 
 
 pkg_failed=no
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for libunwind" >&5
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: checking for libunwind" >&5
 printf %s "checking for libunwind... " >&6; }
 
 if test -n "$LIBUNWIND_CFLAGS"; then
     pkg_cv_LIBUNWIND_CFLAGS="$LIBUNWIND_CFLAGS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libunwind\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libunwind\""; } >&5
   ($PKG_CONFIG --exists --print-errors "libunwind") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_LIBUNWIND_CFLAGS=`$PKG_CONFIG --cflags "libunwind" 2>/dev/null`
 else
@@ -4903,10 +5157,10 @@ if test -n "$LIBUNWIND_LIBS"; then
     pkg_cv_LIBUNWIND_LIBS="$LIBUNWIND_LIBS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libunwind\""; } >&5
+    { { printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libunwind\""; } >&5
   ($PKG_CONFIG --exists --print-errors "libunwind") 2>&5
   ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf '%s\n' "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_LIBUNWIND_LIBS=`$PKG_CONFIG --libs "libunwind" 2>/dev/null`
 else
@@ -4919,8 +5173,8 @@ fi
 
 
 if test $pkg_failed = yes; then
-   	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+   	{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 
 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
         _pkg_short_errors_supported=yes
@@ -4937,14 +5191,14 @@ fi
 
 	have_libunwind=no
 elif test $pkg_failed = untried; then
-     	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+     	{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf '%s\n' "no" >&6; }
 	have_libunwind=no
 else
 	LIBUNWIND_CFLAGS=$pkg_cv_LIBUNWIND_CFLAGS
 	LIBUNWIND_LIBS=$pkg_cv_LIBUNWIND_LIBS
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+        { printf '%s\n' "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf '%s\n' "yes" >&6; }
 	have_libunwind=yes
 fi
 if test x$have_libunwind = xyes ; then
@@ -4963,50 +5217,13 @@ cat >confcache <<\_ACEOF
 # config.status only pays attention to the cache file if you give it
 # the --recheck option to rerun configure.
 #
-# `ac_cv_env_foo' variables (set or unset) will be overridden when
-# loading this file, other *unset* `ac_cv_foo' will be assigned the
+# 'ac_cv_env_foo' variables (set or unset) will be overridden when
+# loading this file, other *unset* 'ac_cv_foo' will be assigned the
 # following values.
 
 _ACEOF
 
-# The following way of writing the cache mishandles newlines in values,
-# but we know of no workaround that is simple, portable, and efficient.
-# So, we kill variables containing newlines.
-# Ultrix sh set writes to stderr and can't be redirected directly,
-# and sets the high bit in the cache file unless we assign to the vars.
-(
-  for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do
-    eval ac_val=\$$ac_var
-    case $ac_val in #(
-    *${as_nl}*)
-      case $ac_var in #(
-      *_cv_*) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
-printf "%s\n" "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
-      esac
-      case $ac_var in #(
-      _ | IFS | as_nl) ;; #(
-      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
-      *) { eval $ac_var=; unset $ac_var;} ;;
-      esac ;;
-    esac
-  done
-
-  (set) 2>&1 |
-    case $as_nl`(ac_space=' '; set) 2>&1` in #(
-    *${as_nl}ac_space=\ *)
-      # `set' does not quote correctly, so add quotes: double-quote
-      # substitution turns \\\\ into \\, and sed turns \\ into \.
-      sed -n \
-	"s/'/'\\\\''/g;
-	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
-      ;; #(
-    *)
-      # `set' quotes correctly as required by POSIX, so do not add quotes.
-      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
-      ;;
-    esac |
-    sort
-) |
+ac_cache_dump |
   sed '
      /^ac_cv_env_/b end
      t clear
@@ -5018,8 +5235,8 @@ printf "%s\n" "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;}
 if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
   if test -w "$cache_file"; then
     if test "x$cache_file" != "x/dev/null"; then
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
-printf "%s\n" "$as_me: updating cache $cache_file" >&6;}
+      { printf '%s\n' "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
+printf '%s\n' "$as_me: updating cache $cache_file" >&6;}
       if test ! -f "$cache_file" || test -h "$cache_file"; then
 	cat confcache >"$cache_file"
       else
@@ -5033,8 +5250,8 @@ printf "%s\n" "$as_me: updating cache $cache_file" >&6;}
       fi
     fi
   else
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
-printf "%s\n" "$as_me: not updating unwritable cache $cache_file" >&6;}
+    { printf '%s\n' "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
+printf '%s\n' "$as_me: not updating unwritable cache $cache_file" >&6;}
   fi
 fi
 rm -f confcache
@@ -5065,9 +5282,7 @@ s/^[	 ]*#[	 ]*define[	 ][	 ]*\([^	 ][^	 ]*\)[	 ]*\(.*\)/-D\1=\2/g
 t quote
 b any
 :quote
-s/[	 `~#$^&*(){}\\|;'\''"<>?]/\\&/g
-s/\[/\\&/g
-s/\]/\\&/g
+s/[][	 `~#$^&*(){}\\|;'\''"<>?]/\\&/g
 s/\$/$$/g
 H
 :any
@@ -5087,7 +5302,7 @@ U=
 for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
   # 1. Remove the extension, and $U if already installed.
   ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
-  ac_i=`printf "%s\n" "$ac_i" | sed "$ac_script"`
+  ac_i=`printf '%s\n' "$ac_i" | sed "$ac_script"`
   # 2. Prepend LIBOBJDIR.  When used with automake>=1.10 LIBOBJDIR
   #    will be set to the directory where LIBOBJS objects are built.
   as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext"
@@ -5100,13 +5315,21 @@ LTLIBOBJS=$ac_ltlibobjs
 
 
 : "${CONFIG_STATUS=./config.status}"
+case $CONFIG_STATUS in #(
+  -*) :
+    CONFIG_STATUS=./$CONFIG_STATUS ;; #(
+  */*) :
+     ;; #(
+  *) :
+    CONFIG_STATUS=./$CONFIG_STATUS ;;
+esac
+
 ac_write_fail=0
-ac_clean_files_save=$ac_clean_files
-ac_clean_files="$ac_clean_files $CONFIG_STATUS"
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
-printf "%s\n" "$as_me: creating $CONFIG_STATUS" >&6;}
+ac_clean_CONFIG_STATUS='"$CONFIG_STATUS"'
+{ printf '%s\n' "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
+printf '%s\n' "$as_me: creating $CONFIG_STATUS" >&6;}
 as_write_fail=0
-cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1
+cat >"$CONFIG_STATUS" <<_ASEOF || as_write_fail=1
 #! $SHELL
 # Generated by $as_me.
 # Run this file to recreate the current configuration.
@@ -5120,28 +5343,28 @@ ac_cs_silent=false
 SHELL=\${CONFIG_SHELL-$SHELL}
 export SHELL
 _ASEOF
-cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1
+cat >>"$CONFIG_STATUS" <<\_ASEOF || as_write_fail=1
 ## -------------------- ##
 ## M4sh Initialization. ##
 ## -------------------- ##
 
 # Be more Bourne compatible
 DUALCASE=1; export DUALCASE # for MKS sh
-as_nop=:
 if test ${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
 then :
   emulate sh
   NULLCMD=:
   # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
-  # is contrary to our usage.  Disable this feature.
+  # contradicts POSIX and common usage.  Disable this.
   alias -g '${1+"$@"}'='"$@"'
   setopt NO_GLOB_SUBST
-else $as_nop
-  case `(set -o) 2>/dev/null` in #(
+else case e in #(
+  e) case `(set -o) 2>/dev/null` in #(
   *posix*) :
     set -o posix ;; #(
   *) :
      ;;
+esac ;;
 esac
 fi
 
@@ -5213,13 +5436,13 @@ IFS=$as_save_IFS
 
      ;;
 esac
-# We did not find ourselves, most probably we were run as `sh COMMAND'
+# We did not find ourselves, most probably we were run as 'sh COMMAND'
 # in which case we are not to be found in the path.
 if test "x$as_myself" = x; then
   as_myself=$0
 fi
 if test ! -f "$as_myself"; then
-  printf "%s\n" "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  printf '%s\n' "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
   exit 1
 fi
 
@@ -5235,14 +5458,13 @@ as_fn_error ()
   as_status=$1; test $as_status -eq 0 && as_status=1
   if test "$4"; then
     as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+    printf '%s\n' "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
   fi
-  printf "%s\n" "$as_me: error: $2" >&2
+  printf '%s\n' "$as_me: error: $2" >&2
   as_fn_exit $as_status
 } # as_fn_error
 
 
-
 # as_fn_set_status STATUS
 # -----------------------
 # Set $? to STATUS, without forking.
@@ -5282,11 +5504,12 @@ then :
   {
     eval $1+=\$2
   }'
-else $as_nop
-  as_fn_append ()
+else case e in #(
+  e) as_fn_append ()
   {
     eval $1=\$$1\$2
-  }
+  } ;;
+esac
 fi # as_fn_append
 
 # as_fn_arith ARG...
@@ -5300,11 +5523,12 @@ then :
   {
     as_val=$(( $* ))
   }'
-else $as_nop
-  as_fn_arith ()
+else case e in #(
+  e) as_fn_arith ()
   {
     as_val=`expr "$@" || test $? -eq 1`
-  }
+  } ;;
+esac
 fi # as_fn_arith
 
 
@@ -5331,7 +5555,7 @@ as_me=`$as_basename -- "$0" ||
 $as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
 	 X"$0" : 'X\(//\)$' \| \
 	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
-printf "%s\n" X/"$0" |
+printf '%s\n' X/"$0" |
     sed '/^.*\/\([^/][^/]*\)\/*$/{
 	    s//\1/
 	    q
@@ -5353,29 +5577,6 @@ as_cr_Letters=$as_cr_letters$as_cr_LETTERS
 as_cr_digits='0123456789'
 as_cr_alnum=$as_cr_Letters$as_cr_digits
 
-
-# Determine whether it's possible to make 'echo' print without a newline.
-# These variables are no longer used directly by Autoconf, but are AC_SUBSTed
-# for compatibility with existing Makefiles.
-ECHO_C= ECHO_N= ECHO_T=
-case `echo -n x` in #(((((
--n*)
-  case `echo 'xy\c'` in
-  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
-  xy)  ECHO_C='\c';;
-  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
-       ECHO_T='	';;
-  esac;;
-*)
-  ECHO_N='-n';;
-esac
-
-# For backward compatibility with old third-party macros, we provide
-# the shell variables $as_echo and $as_echo_n.  New code should use
-# AS_ECHO(["message"]) and AS_ECHO_N(["message"]), respectively.
-as_echo='printf %s\n'
-as_echo_n='printf %s'
-
 rm -f conf$$ conf$$.exe conf$$.file
 if test -d conf$$.dir; then
   rm -f conf$$.dir/conf$$.file
@@ -5387,9 +5588,9 @@ if (echo >conf$$.file) 2>/dev/null; then
   if ln -s conf$$.file conf$$ 2>/dev/null; then
     as_ln_s='ln -s'
     # ... but there are two gotchas:
-    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
-    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
-    # In both cases, we have to default to `cp -pR'.
+    # 1) On MSYS, both 'ln -s file dir' and 'ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; 'ln -s' creates a wrapper executable.
+    # In both cases, we have to default to 'cp -pR'.
     ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
       as_ln_s='cp -pR'
   elif ln conf$$.file conf$$ 2>/dev/null; then
@@ -5417,7 +5618,7 @@ as_fn_mkdir_p ()
     as_dirs=
     while :; do
       case $as_dir in #(
-      *\'*) as_qdir=`printf "%s\n" "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *\'*) as_qdir=`printf '%s\n' "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
       *) as_qdir=$as_dir;;
       esac
       as_dirs="'$as_qdir' $as_dirs"
@@ -5426,7 +5627,7 @@ $as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
 	 X"$as_dir" : 'X\(//\)[^/]' \| \
 	 X"$as_dir" : 'X\(//\)$' \| \
 	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
-printf "%s\n" X"$as_dir" |
+printf '%s\n' X"$as_dir" |
     sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 	    s//\1/
 	    q
@@ -5470,26 +5671,28 @@ as_test_x='test -x'
 as_executable_p=as_fn_executable_p
 
 # Sed expression to map a string onto a valid CPP name.
-as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+as_sed_cpp="y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g"
+as_tr_cpp="eval sed '$as_sed_cpp'" # deprecated
 
 # Sed expression to map a string onto a valid variable name.
-as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+as_sed_sh="y%*+%pp%;s%[^_$as_cr_alnum]%_%g"
+as_tr_sh="eval sed '$as_sed_sh'" # deprecated
 
 
 exec 6>&1
-## ----------------------------------- ##
-## Main body of $CONFIG_STATUS script. ##
-## ----------------------------------- ##
+## ------------------------------------- ##
+## Main body of "$CONFIG_STATUS" script. ##
+## ------------------------------------- ##
 _ASEOF
-test $as_write_fail = 0 && chmod +x $CONFIG_STATUS || ac_write_fail=1
+test $as_write_fail = 0 && chmod +x "$CONFIG_STATUS" || ac_write_fail=1
 
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<\_ACEOF || ac_write_fail=1
 # Save the log message, to keep $0 and so on meaningful, and to
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
 This file was extended by $as_me, which was
-generated by GNU Autoconf 2.71.  Invocation command line was
+generated by GNU Autoconf 2.73.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
   CONFIG_HEADERS  = $CONFIG_HEADERS
@@ -5508,15 +5711,15 @@ esac
 
 
 
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<_ACEOF || ac_write_fail=1
 # Files that config.status was made for.
 config_files="$ac_config_files"
 
 _ACEOF
 
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<\_ACEOF || ac_write_fail=1
 ac_cs_usage="\
-\`$as_me' instantiates files and other configuration actions
+'$as_me' instantiates files and other configuration actions
 from templates according to the current configuration.  Unless the files
 and actions are specified as TAGs, all are instantiated by default.
 
@@ -5538,25 +5741,29 @@ $config_files
 Report bugs to the package provider."
 
 _ACEOF
-ac_cs_config=`printf "%s\n" "$ac_configure_args" | sed "$ac_safe_unquote"`
-ac_cs_config_escaped=`printf "%s\n" "$ac_cs_config" | sed "s/^ //; s/'/'\\\\\\\\''/g"`
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ac_cs_config=`printf '%s\n' "$ac_configure_args" | sed "$ac_safe_unquote"`
+ac_cs_config_escaped=`printf '%s\n' "$ac_cs_config" | sed "s/^ //; s/'/'\\\\\\\\''/g"`
+cat >>"$CONFIG_STATUS" <<_ACEOF || ac_write_fail=1
 ac_cs_config='$ac_cs_config_escaped'
 ac_cs_version="\\
 config.status
-configured by $0, generated by GNU Autoconf 2.71,
+configured by $0, generated by GNU Autoconf 2.73,
   with options \\"\$ac_cs_config\\"
 
-Copyright (C) 2021 Free Software Foundation, Inc.
+Copyright (C) 2026 Free Software Foundation, Inc.
 This config.status script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it."
 
 ac_pwd='$ac_pwd'
 srcdir='$srcdir'
-test -n "\$AWK" || AWK=awk
+test -n "\$AWK" || {
+  awk '' </dev/null ||
+    as_fn_error \$? "try installing gawk"
+  AWK=awk
+}
 _ACEOF
 
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<\_ACEOF || ac_write_fail=1
 # The default lists apply if the user does not specify any file.
 ac_need_defaults=:
 while test $# != 0
@@ -5584,28 +5791,28 @@ do
   -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
     ac_cs_recheck=: ;;
   --version | --versio | --versi | --vers | --ver | --ve | --v | -V )
-    printf "%s\n" "$ac_cs_version"; exit ;;
+    printf '%s\n' "$ac_cs_version"; exit ;;
   --config | --confi | --conf | --con | --co | --c )
-    printf "%s\n" "$ac_cs_config"; exit ;;
+    printf '%s\n' "$ac_cs_config"; exit ;;
   --debug | --debu | --deb | --de | --d | -d )
     debug=: ;;
   --file | --fil | --fi | --f )
     $ac_shift
     case $ac_optarg in
-    *\'*) ac_optarg=`printf "%s\n" "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    *\'*) ac_optarg=`printf '%s\n' "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
     '') as_fn_error $? "missing file argument" ;;
     esac
     as_fn_append CONFIG_FILES " '$ac_optarg'"
     ac_need_defaults=false;;
   --he | --h |  --help | --hel | -h )
-    printf "%s\n" "$ac_cs_usage"; exit ;;
+    printf '%s\n' "$ac_cs_usage"; exit ;;
   -q | -quiet | --quiet | --quie | --qui | --qu | --q \
   | -silent | --silent | --silen | --sile | --sil | --si | --s)
     ac_cs_silent=: ;;
 
   # This is an error.
-  -*) as_fn_error $? "unrecognized option: \`$1'
-Try \`$0 --help' for more information." ;;
+  -*) as_fn_error $? "unrecognized option: '$1'
+Try '$0 --help' for more information." ;;
 
   *) as_fn_append ac_config_targets " $1"
      ac_need_defaults=false ;;
@@ -5622,32 +5829,32 @@ if $ac_cs_silent; then
 fi
 
 _ACEOF
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<_ACEOF || ac_write_fail=1
 if \$ac_cs_recheck; then
   set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
   shift
-  \printf "%s\n" "running CONFIG_SHELL=$SHELL \$*" >&6
+  \printf '%s\n' "running CONFIG_SHELL=$SHELL \$*" >&6
   CONFIG_SHELL='$SHELL'
   export CONFIG_SHELL
   exec "\$@"
 fi
 
 _ACEOF
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<\_ACEOF || ac_write_fail=1
 exec 5>>config.log
 {
   echo
   sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
 ## Running $as_me. ##
 _ASBOX
-  printf "%s\n" "$ac_log"
+  printf '%s\n' "$ac_log"
 } >&5
 
 _ACEOF
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<_ACEOF || ac_write_fail=1
 _ACEOF
 
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<\_ACEOF || ac_write_fail=1
 
 # Handling of arguments.
 for ac_config_target in $ac_config_targets
@@ -5655,7 +5862,7 @@ do
   case $ac_config_target in
     "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
 
-  *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
+  *) as_fn_error $? "invalid argument: '$ac_config_target'" "$LINENO" 5;;
   esac
 done
 
@@ -5673,7 +5880,7 @@ fi
 # creating and moving files from /tmp can sometimes cause problems.
 # Hook for its removal unless debugging.
 # Note that there is a small window in which the directory will not be cleaned:
-# after its creation but before its name has been assigned to `$tmp'.
+# after its creation but before its name has been assigned to '$tmp'.
 $debug ||
 {
   tmp= ac_tmp=
@@ -5697,7 +5904,7 @@ ac_tmp=$tmp
 
 # Set up the scripts for CONFIG_FILES section.
 # No need to generate them if there are no CONFIG_FILES.
-# This happens for instance with `./config.status config.h'.
+# This happens for instance with './config.status config.h'.
 if test -n "$CONFIG_FILES"; then
 
 
@@ -5725,13 +5932,13 @@ _ACEOF
   echo "_ACEOF"
 } >conf$$subs.sh ||
   as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
-ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'`
+ac_delim_num=`echo "$ac_subst_vars" | sed -n '$='`
 ac_delim='%!_!# '
 for ac_last_try in false false false false false :; do
   . ./conf$$subs.sh ||
     as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
 
-  ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X`
+  ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | sed -n '$='`
   if test $ac_delim_n = $ac_delim_num; then
     break
   elif $ac_last_try; then
@@ -5742,7 +5949,7 @@ for ac_last_try in false false false false false :; do
 done
 rm -f conf$$subs.sh
 
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<_ACEOF || ac_write_fail=1
 cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK &&
 _ACEOF
 sed -n '
@@ -5787,9 +5994,9 @@ t delim
   N
   s/\n//
 }
-' >>$CONFIG_STATUS || ac_write_fail=1
+' >>"$CONFIG_STATUS" || ac_write_fail=1
 rm -f conf$$subs.awk
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<_ACEOF || ac_write_fail=1
 _ACAWK
 cat >>"\$ac_tmp/subs1.awk" <<_ACAWK &&
   for (key in S) S_is_set[key] = 1
@@ -5818,7 +6025,7 @@ cat >>"\$ac_tmp/subs1.awk" <<_ACAWK &&
 
 _ACAWK
 _ACEOF
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<\_ACEOF || ac_write_fail=1
 if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then
   sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g"
 else
@@ -5850,7 +6057,7 @@ s/^[^=]*=[	 ]*$//
 }'
 fi
 
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<\_ACEOF || ac_write_fail=1
 fi # test -n "$CONFIG_FILES"
 
 
@@ -5863,7 +6070,7 @@ do
   esac
   case $ac_mode$ac_tag in
   :[FHL]*:*);;
-  :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5;;
+  :L* | :C*:*) as_fn_error $? "invalid tag '$ac_tag'" "$LINENO" 5;;
   :[FH]-) ac_tag=-:-;;
   :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
   esac
@@ -5885,33 +6092,33 @@ do
       -) ac_f="$ac_tmp/stdin";;
       *) # Look for the file first in the build tree, then in the source tree
 	 # (if the path is not absolute).  The absolute path cannot be DOS-style,
-	 # because $ac_f cannot contain `:'.
+	 # because $ac_f cannot contain ':'.
 	 test -f "$ac_f" ||
 	   case $ac_f in
 	   [\\/$]*) false;;
 	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
 	   esac ||
-	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
+	   as_fn_error 1 "cannot find input file: '$ac_f'" "$LINENO" 5;;
       esac
-      case $ac_f in *\'*) ac_f=`printf "%s\n" "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
+      case $ac_f in *\'*) ac_f=`printf '%s\n' "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
       as_fn_append ac_file_inputs " '$ac_f'"
     done
 
-    # Let's still pretend it is `configure' which instantiates (i.e., don't
+    # Let's still pretend it is 'configure' which instantiates (i.e., don't
     # use $as_me), people would be surprised to read:
     #    /* config.h.  Generated by config.status.  */
     configure_input='Generated from '`
-	  printf "%s\n" "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
+	  printf '%s\n' "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
 	`' by configure.'
     if test x"$ac_file" != x-; then
       configure_input="$ac_file.  $configure_input"
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
-printf "%s\n" "$as_me: creating $ac_file" >&6;}
+      { printf '%s\n' "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
+printf '%s\n' "$as_me: creating $ac_file" >&6;}
     fi
     # Neutralize special characters interpreted by sed in replacement strings.
     case $configure_input in #(
     *\&* | *\|* | *\\* )
-       ac_sed_conf_input=`printf "%s\n" "$configure_input" |
+       ac_sed_conf_input=`printf '%s\n' "$configure_input" |
        sed 's/[\\\\&|]/\\\\&/g'`;; #(
     *) ac_sed_conf_input=$configure_input;;
     esac
@@ -5928,7 +6135,7 @@ $as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
 	 X"$ac_file" : 'X\(//\)[^/]' \| \
 	 X"$ac_file" : 'X\(//\)$' \| \
 	 X"$ac_file" : 'X\(/\)' \| . 2>/dev/null ||
-printf "%s\n" X"$ac_file" |
+printf '%s\n' X"$ac_file" |
     sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 	    s//\1/
 	    q
@@ -5952,9 +6159,9 @@ printf "%s\n" X"$ac_file" |
 case "$ac_dir" in
 .) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
 *)
-  ac_dir_suffix=/`printf "%s\n" "$ac_dir" | sed 's|^\.[\\/]||'`
+  ac_dir_suffix=/`printf '%s\n' "$ac_dir" | sed 's|^\.[\\/]||'`
   # A ".." for each directory in $ac_dir_suffix.
-  ac_top_builddir_sub=`printf "%s\n" "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  ac_top_builddir_sub=`printf '%s\n' "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
   case $ac_top_builddir_sub in
   "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
   *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
@@ -5990,7 +6197,7 @@ ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
 
 _ACEOF
 
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<\_ACEOF || ac_write_fail=1
 # If the template does not know about datarootdir, expand it.
 # FIXME: This hack should be removed a few years after 2.60.
 ac_datarootdir_hack=; ac_datarootdir_seen=
@@ -6007,10 +6214,10 @@ ac_sed_dataroot='
 case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
 *datarootdir*) ac_datarootdir_seen=yes;;
 *@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
-printf "%s\n" "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
+printf '%s\n' "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
 _ACEOF
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<_ACEOF || ac_write_fail=1
   ac_datarootdir_hack='
   s&@datadir@&$datadir&g
   s&@docdir@&$docdir&g
@@ -6021,14 +6228,14 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 esac
 _ACEOF
 
-# Neutralize VPATH when `$srcdir' = `.'.
+# Neutralize VPATH when '$srcdir' = '.'.
 # Shell code in configure.ac might set extrasub.
 # FIXME: do we really want to maintain this feature?
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<_ACEOF || ac_write_fail=1
 ac_sed_extra="$ac_vpsub
 $extrasub
 _ACEOF
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+cat >>"$CONFIG_STATUS" <<\_ACEOF || ac_write_fail=1
 :t
 /@[a-zA-Z_][a-zA-Z_0-9]*@/!b
 s|@configure_input@|$ac_sed_conf_input|;t t
@@ -6050,9 +6257,9 @@ test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
   { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
   { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
       "$ac_tmp/out"`; test -z "$ac_out"; } &&
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable 'datarootdir'
 which seems to be undefined.  Please make sure it is defined" >&5
-printf "%s\n" "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+printf '%s\n' "$as_me: WARNING: $ac_file contains a reference to the variable 'datarootdir'
 which seems to be undefined.  Please make sure it is defined" >&2;}
 
   rm -f "$ac_tmp/stdin"
@@ -6072,7 +6279,7 @@ done # for ac_tag
 
 as_fn_exit 0
 _ACEOF
-ac_clean_files=$ac_clean_files_save
+ac_clean_CONFIG_STATUS=
 
 test $ac_write_fail = 0 ||
   as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5
@@ -6088,19 +6295,26 @@ test $ac_write_fail = 0 ||
 # need to make the FD available again.
 if test "$no_create" != yes; then
   ac_cs_success=:
+  case $CONFIG_STATUS in #(
+  -*) :
+    ac_no_opts=-- ;; #(
+  *) :
+    ac_no_opts= ;;
+esac
   ac_config_status_args=
   test "$silent" = yes &&
     ac_config_status_args="$ac_config_status_args --quiet"
   exec 5>/dev/null
-  $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
+  $SHELL $ac_no_opts "$CONFIG_STATUS" $ac_config_status_args ||
+    ac_cs_success=false
   exec 5>>config.log
   # Use ||, not &&, to avoid exiting from the if with $? = 1, which
   # would make configure fail if this is the last instruction.
   $ac_cs_success || as_fn_exit 1
 fi
 if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
-printf "%s\n" "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
+  { printf '%s\n' "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
+printf '%s\n' "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
 fi