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Add -fno-strict-aliasing to compiler options since GCC doesn't understand

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that char * and unsigned char * are safe to interchange (STR #1484)


git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@5538 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
This commit is contained in:
Michael R Sweet
2006-10-31 21:28:11 +00:00
parent 4e0cea8f10
commit 7a9e9468e6
1 changed files with 10 additions and 0 deletions
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configure.in
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@@ -881,6 +881,16 @@ if test -n "$GCC"; then
AC_MSG_RESULT(no))
CFLAGS="$OLDCFLAGS"
# See if GCC supports -fno-strict-aliasing...
AC_MSG_CHECKING(if GCC supports -fno-strict-aliasing)
OLDCFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -fno-strict-aliasing"
AC_TRY_COMPILE(,,
OPTIM="$OPTIM -fno-strict-aliasing"
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no))
CFLAGS="$OLDCFLAGS"
# See if we are running Solaris; if so, try the -fpermissive option...
# This option is required on some versions of Solaris to work around
# bugs in the X headers up through Solaris 7.