Sylpheed

# Configure paths for gdk-pixbuf

# Elliot Lee 2000-01-10

# stolen from Raph Levien 98-11-18

# stolen from Manish Singh    98-9-30

# stolen back from Frank Belew

# stolen from Manish Singh

# Shamelessly stolen from Owen Taylor

dnl AM_PATH_GDK_PIXBUF([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])

dnl Test for GDK_PIXBUF, and define GDK_PIXBUF_CFLAGS and GDK_PIXBUF_LIBS

dnl

AC_DEFUN(AM_PATH_GDK_PIXBUF,

[dnl 

dnl Get the cflags and libraries from the gdk-pixbuf-config script

dnl

AC_ARG_WITH(gdk-pixbuf-prefix,[  --with-gdk-pixbuf-prefix=PFX   Prefix where GDK_PIXBUF is installed (optional)],

            gdk_pixbuf_prefix="$withval", gdk_pixbuf_prefix="")

AC_ARG_WITH(gdk-pixbuf-exec-prefix,[  --with-gdk-pixbuf-exec-prefix=PFX Exec prefix where GDK_PIXBUF is installed (optional)],

            gdk_pixbuf_exec_prefix="$withval", gdk_pixbuf_exec_prefix="")

AC_ARG_ENABLE(gdk_pixbuftest, [  --disable-gdk_pixbuftest       Do not try to compile and run a test GDK_PIXBUF program],

		    , enable_gdk_pixbuftest=yes)

  if test x$gdk_pixbuf_exec_prefix != x ; then

     gdk_pixbuf_args="$gdk_pixbuf_args --exec-prefix=$gdk_pixbuf_exec_prefix"

     if test x${GDK_PIXBUF_CONFIG+set} = xset ; then

        GDK_PIXBUF_CONFIG=$gdk_pixbuf_exec_prefix/gdk-pixbuf-config

     fi

  fi

  if test x$gdk_pixbuf_prefix != x ; then

     gdk_pixbuf_args="$gdk_pixbuf_args --prefix=$gdk_pixbuf_prefix"

     if test x${GDK_PIXBUF_CONFIG+set} = xset ; then

        GDK_PIXBUF_CONFIG=$gdk_pixbuf_prefix/bin/gdk-pixbuf-config

     fi

  fi

  AC_PATH_PROG(GDK_PIXBUF_CONFIG, gdk-pixbuf-config, no)

  min_gdk_pixbuf_version=ifelse([$1], ,0.2.5,$1)

  AC_MSG_CHECKING(for GDK_PIXBUF - version >= $min_gdk_pixbuf_version)

  no_gdk_pixbuf=""

  if test "$GDK_PIXBUF_CONFIG" = "no" ; then

    no_gdk_pixbuf=yes

  else

    GDK_PIXBUF_CFLAGS=`$GDK_PIXBUF_CONFIG $gdk_pixbufconf_args --cflags`

    GDK_PIXBUF_LIBS=`$GDK_PIXBUF_CONFIG $gdk_pixbufconf_args --libs`

    gdk_pixbuf_major_version=`$GDK_PIXBUF_CONFIG $gdk_pixbuf_args --version | \

           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`

    gdk_pixbuf_minor_version=`$GDK_PIXBUF_CONFIG $gdk_pixbuf_args --version | \

           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`

    gdk_pixbuf_micro_version=`$GDK_PIXBUF_CONFIG $gdk_pixbuf_config_args --version | \

           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`

    if test "x$enable_gdk_pixbuftest" = "xyes" ; then

      ac_save_CFLAGS="$CFLAGS"

      ac_save_LIBS="$LIBS"

      CFLAGS="$CFLAGS $GDK_PIXBUF_CFLAGS"

      LIBS="$LIBS $GDK_PIXBUF_LIBS"

dnl

dnl Now check if the installed GDK_PIXBUF is sufficiently new. (Also sanity

dnl checks the results of gdk-pixbuf-config to some extent

dnl

      rm -f conf.gdk_pixbuftest

      AC_TRY_RUN([

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <gdk-pixbuf/gdk-pixbuf.h>

char*

my_strdup (char *str)

{

  char *new_str;

  if (str)

    {

      new_str = malloc ((strlen (str) + 1) * sizeof(char));

      strcpy (new_str, str);

    }

  else

    new_str = NULL;

  return new_str;

}

int main ()

{

  int major, minor, micro;

  char *tmp_version;

  system ("touch conf.gdk_pixbuftest");

  /* HP/UX 9 (%@#!) writes to sscanf strings */

  tmp_version = my_strdup("$min_gdk_pixbuf_version");

  if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {

     printf("%s, bad version string\n", "$min_gdk_pixbuf_version");

     exit(1);

   }

   if (($gdk_pixbuf_major_version > major) ||

      (($gdk_pixbuf_major_version == major) && ($gdk_pixbuf_minor_version > minor)) ||

      (($gdk_pixbuf_major_version == major) && ($gdk_pixbuf_minor_version == minor) && ($gdk_pixbuf_micro_version >= micro)))

    {

      return 0;

    }

  else

    {

      printf("\n*** 'gdk-pixbuf-config --version' returned %d.%d.%d, but the minimum version\n", $gdk_pixbuf_major_version, $gdk_pixbuf_minor_version, $gdk_pixbuf_micro_version);

      printf("*** of GDK_PIXBUF required is %d.%d.%d. If gdk-pixbuf-config is correct, then it is\n", major, minor, micro);

      printf("*** best to upgrade to the required version.\n");

      printf("*** If gdk-pixbuf-config was wrong, set the environment variable GDK_PIXBUF_CONFIG\n");

      printf("*** to point to the correct copy of gdk-pixbuf-config, and remove the file\n");

      printf("*** config.cache before re-running configure\n");

      return 1;

    }

}

],, no_gdk_pixbuf=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])

       CFLAGS="$ac_save_CFLAGS"

       LIBS="$ac_save_LIBS"

     fi

  fi

  if test "x$no_gdk_pixbuf" = x ; then

     AC_MSG_RESULT(yes)

     ifelse([$2], , :, [$2])     

  else

     AC_MSG_RESULT(no)

     if test "$GDK_PIXBUF_CONFIG" = "no" ; then

       echo "*** The gdk-pixbuf-config script installed by GDK_PIXBUF could not be found"

       echo "*** If GDK_PIXBUF was installed in PREFIX, make sure PREFIX/bin is in"

       echo "*** your path, or set the GDK_PIXBUF_CONFIG environment variable to the"

       echo "*** full path to gdk-pixbuf-config."

     else

       if test -f conf.gdk_pixbuftest ; then

        :

       else

          echo "*** Could not run GDK_PIXBUF test program, checking why..."

          CFLAGS="$CFLAGS $GDK_PIXBUF_CFLAGS"

          LIBS="$LIBS $GDK_PIXBUF_LIBS"

          AC_TRY_LINK([

#include <stdio.h>

#include <gdk-pixbuf/gdk-pixbuf.h>

],      [ return 0; ],

        [ echo "*** The test program compiled, but did not run. This usually means"

          echo "*** that the run-time linker is not finding GDK_PIXBUF or finding the wrong"

          echo "*** version of GDK_PIXBUF. If it is not finding GDK_PIXBUF, you'll need to set your"

          echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"

          echo "*** to the installed location  Also, make sure you have run ldconfig if that"

          echo "*** is required on your system"

	  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"],

        [ echo "*** The test program failed to compile or link. See the file config.log for the"

          echo "*** exact error that occured. This usually means GDK_PIXBUF was incorrectly installed"

          echo "*** or that you have moved GDK_PIXBUF since it was installed. In the latter case, you"

          echo "*** may want to edit the gdk-pixbuf-config script: $GDK_PIXBUF_CONFIG" ])

          CFLAGS="$ac_save_CFLAGS"

          LIBS="$ac_save_LIBS"

       fi

     fi

     GDK_PIXBUF_CFLAGS=""

     GDK_PIXBUF_LIBS=""

     ifelse([$3], , :, [$3])

  fi

  AC_SUBST(GDK_PIXBUF_CFLAGS)

  AC_SUBST(GDK_PIXBUF_LIBS)

  rm -f conf.gdk_pixbuftest

])