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Add check for libpng/png.h as well as png.h, and include the appropriate

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one as needed...


git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@2106 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
This commit is contained in:
Michael R Sweet
2002-04-24 18:29:06 +00:00
parent f87f7a7b14
commit 7b99f66d03
7 changed files with 59 additions and 27 deletions
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configure.in
+8 -4
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@@ -1,7 +1,7 @@
dnl -*- sh -*-
dnl the "configure" script is made from this by running GNU "autoconf"
dnl
dnl "$Id: configure.in,v 1.33.2.31.2.61 2002/04/16 17:11:11 easysw Exp $"
dnl "$Id: configure.in,v 1.33.2.31.2.62 2002/04/24 18:29:05 easysw Exp $"
dnl
dnl Configuration script for the Fast Light Tool Kit (FLTK).
dnl
@@ -285,12 +285,16 @@ AC_CHECK_HEADER(zlib.h,
IMAGELIBS="$IMAGELIBS -lz"
LIBS="$LIBS -lz"))
AC_CHECK_HEADER(png.h,
AC_CHECK_HEADER(png.h, AC_DEFINE(HAVE_PNG_H))
AC_CHECK_HEADER(libpng/png.h, AC_DEFINE(HAVE_LIBPNG_PNG_H))
if test x$ac_cv_header_png_h = xyes -o x$ac_cv_header_libpng_png_h = xyes; then
AC_CHECK_LIB(png, png_read_rows,
AC_DEFINE(HAVE_LIBPNG)
IMAGELIBS="-lpng $IMAGELIBS"
LIBS="-lpng $LIBS"
AC_CHECK_FUNCS(png_get_valid png_set_tRNS_to_alpha png_read_destroy)))
AC_CHECK_FUNCS(png_get_valid png_set_tRNS_to_alpha png_read_destroy))
fi
dnl Restore original LIBS settings...
LIBS="$SAVELIBS"
@@ -720,5 +724,5 @@ dnl Make sure the fltk-config script is executable...
chmod +x fltk-config
dnl
dnl End of "$Id: configure.in,v 1.33.2.31.2.61 2002/04/16 17:11:11 easysw Exp $".
dnl End of "$Id: configure.in,v 1.33.2.31.2.62 2002/04/24 18:29:05 easysw Exp $".
dnl