# Configure paths for FreeType2

# Marcelo Magallon 2001-10-26, based on gtk.m4 by Owen Taylor

#

# Copyright 2001, 2003, 2007, 2009 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 3

# 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).

#

AC_DEFUN([AC_CHECK_FT2],

  [# Get the cflags and libraries from the freetype-config script

   #

   AC_ARG_WITH([ft-prefix],

     dnl don't quote AS_HELP_STRING!

     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],

     dnl don't quote AS_HELP_STRING!

     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],

     dnl don't quote AS_HELP_STRING!

     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_PROG([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 FT_FREETYPE_H

#include <stdio.h>

#include <stdlib.h>

int

main()

{

  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