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kc3-lang/freetype/builds/unix/freetype2.m4

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  • Author : Werner Lemberg
    Date : 2025-09-06 06:14:03
    Hash : 32cb5390
    Message : Update all copyright notices.

  • builds/unix/freetype2.m4
  • # Configure paths for FreeType2
    # Marcelo Magallon 2001-10-26, based on `gtk.m4` by Owen Taylor
    #
    # Copyright (C) 2001-2025 by
    # David Turner, Robert Wilhelm, and Werner Lemberg.
    #
    # This file is part of the FreeType project, and may only be used, modified,
    # and distributed under the terms of the FreeType project license,
    # LICENSE.TXT.  By continuing to use, modify, or distribute this file you
    # indicate that you have read the license and understand and accept it
    # fully.
    #
    # As a special exception to the FreeType project license, this file may be
    # distributed as part of a program that contains a configuration script
    # generated by Autoconf, under the same distribution terms as the rest of
    # that program.
    #
    # serial 7
    
    # AC_CHECK_FT2([MINIMUM-VERSION [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
    # Test for FreeType 2, and define FT2_CFLAGS and FT2_LIBS.
    # MINIMUM-VERSION is what libtool reports; the default is '7.0.1' (this is
    # FreeType 2.0.4).
    #
    # To make this code work with older autoconf versions, `AS_HELP_STRING` is
    # not quoted.
    #
    AC_DEFUN([AC_CHECK_FT2],
      [# Get the cflags and libraries from the freetype-config script
       #
       AC_ARG_WITH([ft-prefix],
         AS_HELP_STRING([--with-ft-prefix=PREFIX],
                        [Prefix where FreeType is installed (optional)]),
         [ft_config_prefix="$withval"],
         [ft_config_prefix=""])
    
       AC_ARG_WITH([ft-exec-prefix],
         AS_HELP_STRING([--with-ft-exec-prefix=PREFIX],
                        [Exec prefix where FreeType is installed (optional)]),
         [ft_config_exec_prefix="$withval"],
         [ft_config_exec_prefix=""])
    
       AC_ARG_ENABLE([freetypetest],
         AS_HELP_STRING([--disable-freetypetest],
                        [Do not try to compile and run a test FreeType program]),
         [],
         [enable_fttest=yes])
    
       if test x$ft_config_exec_prefix != x ; then
         ft_config_args="$ft_config_args --exec-prefix=$ft_config_exec_prefix"
         if test x${FT2_CONFIG+set} != xset ; then
           FT2_CONFIG=$ft_config_exec_prefix/bin/freetype-config
         fi
       fi
    
       if test x$ft_config_prefix != x ; then
         ft_config_args="$ft_config_args --prefix=$ft_config_prefix"
         if test x${FT2_CONFIG+set} != xset ; then
           FT2_CONFIG=$ft_config_prefix/bin/freetype-config
         fi
       fi
    
       if test "x$FT2_CONFIG" = x ; then
         AC_PATH_TOOL([FT2_CONFIG], [freetype-config], [no])
       fi
    
       min_ft_version=m4_if([$1], [], [7.0.1], [$1])
       AC_MSG_CHECKING([for FreeType -- version >= $min_ft_version])
       no_ft=""
       if test "$FT2_CONFIG" = "no" ; then
         no_ft=yes
       else
         FT2_CFLAGS=`$FT2_CONFIG $ft_config_args --cflags`
         FT2_LIBS=`$FT2_CONFIG $ft_config_args --libs`
         ft_config_major_version=`$FT2_CONFIG $ft_config_args --version | \
           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
         ft_config_minor_version=`$FT2_CONFIG $ft_config_args --version | \
           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
         ft_config_micro_version=`$FT2_CONFIG $ft_config_args --version | \
           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
         ft_min_major_version=`echo $min_ft_version | \
           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
         ft_min_minor_version=`echo $min_ft_version | \
           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
         ft_min_micro_version=`echo $min_ft_version | \
           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
         if test x$enable_fttest = xyes ; then
           ft_config_is_lt=""
           if test $ft_config_major_version -lt $ft_min_major_version ; then
             ft_config_is_lt=yes
           else
             if test $ft_config_major_version -eq $ft_min_major_version ; then
               if test $ft_config_minor_version -lt $ft_min_minor_version ; then
                 ft_config_is_lt=yes
               else
                 if test $ft_config_minor_version -eq $ft_min_minor_version ; then
                   if test $ft_config_micro_version -lt $ft_min_micro_version ; then
                     ft_config_is_lt=yes
                   fi
                 fi
               fi
             fi
           fi
           if test x$ft_config_is_lt = xyes ; then
             no_ft=yes
           else
             ac_save_CFLAGS="$CFLAGS"
             ac_save_LIBS="$LIBS"
             CFLAGS="$CFLAGS $FT2_CFLAGS"
             LIBS="$FT2_LIBS $LIBS"
    
             #
             # Sanity checks for the results of freetype-config to some extent.
             #
             AC_RUN_IFELSE([
                 AC_LANG_SOURCE([[
    
    #include <ft2build.h>
    #include <freetype/freetype.h>
    #include <stdio.h>
    #include <stdlib.h>
    
    int
    main(void)
    {
      FT_Library library;
      FT_Error  error;
    
      error = FT_Init_FreeType(&library);
    
      if (error)
        return 1;
      else
      {
        FT_Done_FreeType(library);
        return 0;
      }
    }
    
                 ]])
               ],
               [],
               [no_ft=yes],
               [echo $ECHO_N "cross compiling; assuming OK... $ECHO_C"])
    
             CFLAGS="$ac_save_CFLAGS"
             LIBS="$ac_save_LIBS"
           fi             # test $ft_config_version -lt $ft_min_version
         fi               # test x$enable_fttest = xyes
       fi                 # test "$FT2_CONFIG" = "no"
    
       if test x$no_ft = x ; then
         AC_MSG_RESULT([yes])
         m4_if([$2], [], [:], [$2])
       else
         AC_MSG_RESULT([no])
         if test "$FT2_CONFIG" = "no" ; then
           AC_MSG_WARN([
    
      The freetype-config script installed by FreeType 2 could not be found.
      If FreeType 2 was installed in PREFIX, make sure PREFIX/bin is in
      your path, or set the FT2_CONFIG environment variable to the
      full path to freetype-config.
           ])
         else
           if test x$ft_config_is_lt = xyes ; then
             AC_MSG_WARN([
    
      Your installed version of the FreeType 2 library is too old.
      If you have different versions of FreeType 2, make sure that
      correct values for --with-ft-prefix or --with-ft-exec-prefix
      are used, or set the FT2_CONFIG environment variable to the
      full path to freetype-config.
             ])
           else
             AC_MSG_WARN([
    
      The FreeType test program failed to run.  If your system uses
      shared libraries and they are installed outside the normal
      system library path, make sure the variable LD_LIBRARY_PATH
      (or whatever is appropriate for your system) is correctly set.
             ])
           fi
         fi
    
         FT2_CFLAGS=""
         FT2_LIBS=""
         m4_if([$3], [], [:], [$3])
       fi
    
       AC_SUBST([FT2_CFLAGS])
       AC_SUBST([FT2_LIBS])])
    
    # end of freetype2.m4