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# Configure paths for GTK+ 
# Owen Taylor     97-11-3 
 
dnl AM_PATH_GTK([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]]) 
dnl Test for GTK, and define GTK_CFLAGS and GTK_LIBS 
dnl 
AC_DEFUN(AM_PATH_GTK, 
[dnl  
dnl Get the cflags and libraries from the gtk-config script 
dnl 
AC_ARG_WITH(gtk-prefix,[  --with-gtk-prefix=PFX   Prefix where GTK is installed (optional)], 
            gtk_config_prefix="$withval", gtk_config_prefix="") 
AC_ARG_WITH(gtk-exec-prefix,[  --with-gtk-exec-prefix=PFX Exec prefix where GTK is installed (optional)], 
            gtk_config_exec_prefix="$withval", gtk_config_exec_prefix="") 
AC_ARG_ENABLE(gtktest, [  --disable-gtktest       Do not try to compile and run a test GTK program], 
		    , enable_gtktest=yes) 
 
  if test x$gtk_config_exec_prefix != x ; then 
     gtk_config_args="$gtk_config_args --exec-prefix=$gtk_config_exec_prefix" 
     if test x${GTK_CONFIG+set} != xset ; then 
        GTK_CONFIG=$gtk_config_exec_prefix/bin/gtk-config 
     fi 
  fi 
  if test x$gtk_config_prefix != x ; then 
     gtk_config_args="$gtk_config_args --prefix=$gtk_config_prefix" 
     if test x${GTK_CONFIG+set} != xset ; then 
        GTK_CONFIG=$gtk_config_prefix/bin/gtk-config 
     fi 
  fi 
 
  AC_PATH_PROG(GTK_CONFIG, gtk-config, no) 
  min_gtk_version=ifelse([$1], ,0.99.7,$1) 
  AC_MSG_CHECKING(for GTK - version >= $min_gtk_version) 
  no_gtk="" 
  if test "$GTK_CONFIG" = "no" ; then 
    no_gtk=yes 
  else 
    GTK_CFLAGS=`$GTK_CONFIG $gtk_config_args --cflags` 
    GTK_LIBS=`$GTK_CONFIG $gtk_config_args --libs` 
    gtk_config_major_version=`$GTK_CONFIG $gtk_config_args --version | \ 
           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'` 
    gtk_config_minor_version=`$GTK_CONFIG $gtk_config_args --version | \ 
           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'` 
    gtk_config_micro_version=`$GTK_CONFIG $gtk_config_args --version | \ 
           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'` 
    if test "x$enable_gtktest" = "xyes" ; then 
      ac_save_CFLAGS="$CFLAGS" 
      ac_save_LIBS="$LIBS" 
      CFLAGS="$CFLAGS $GTK_CFLAGS" 
      LIBS="$LIBS $GTK_LIBS" 
dnl 
dnl Now check if the installed GTK is sufficiently new. (Also sanity 
dnl checks the results of gtk-config to some extent 
dnl 
      rm -f conf.gtktest 
      AC_TRY_RUN([ 
#include  
#include  
 
int  
main () 
{ 
  int major, minor, micro; 
 
  system ("touch conf.gtktest"); 
 
  if (sscanf("$min_gtk_version", "%d.%d.%d", &major, &minor, µ) != 3) { 
     printf("%s, bad version string\n", "$min_gtk_version"); 
     exit(1); 
   } 
 
  if ((gtk_major_version != $gtk_config_major_version) || 
      (gtk_minor_version != $gtk_config_minor_version) || 
      (gtk_micro_version != $gtk_config_micro_version)) 
    { 
      printf("\n\n*** Disregard this message if you do not want GTK+ plugins compiled.\n"); 
      printf("\n*** 'gtk-config --version' returned %d.%d.%d, but GTK+ (%d.%d.%d)\n",  
             $gtk_config_major_version, $gtk_config_minor_version, $gtk_config_micro_version, 
             gtk_major_version, gtk_minor_version, gtk_micro_version); 
      printf ("*** was found! If gtk-config was correct, then it is best\n"); 
      printf ("*** to remove the old version of GTK+. You may also be able to fix the error\n"); 
      printf("*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing\n"); 
      printf("*** /etc/ld.so.conf. Make sure you have run ldconfig if that is\n"); 
      printf("*** required on your system.\n"); 
      printf("*** If gtk-config was wrong, set the environment variable GTK_CONFIG\n"); 
      printf("*** to point to the correct copy of gtk-config, and remove the file config.cache\n"); 
      printf("*** before re-running configure\n"); 
    }  
  else 
    { 
      if ((gtk_major_version > major) || 
        ((gtk_major_version == major) && (gtk_minor_version > minor)) || 
        ((gtk_major_version == major) && (gtk_minor_version == minor) && (gtk_micro_version >= micro))) 
      { 
        return 0; 
       } 
     else 
      { 
	printf("\n\n*** Disregard this message if you do not want GTK+ plugins compiled.\n"); 
        printf("\n*** An old version of GTK+ (%d.%d.%d) was found.\n", 
               gtk_major_version, gtk_minor_version, gtk_micro_version); 
        printf("*** You need a version of GTK+ newer than %d.%d.%d. The latest version of\n", 
	       major, minor, micro); 
        printf("*** GTK+ is always available from ftp://ftp.gtk.org.\n"); 
        printf("***\n"); 
        printf("*** If you have already installed a sufficiently new version, this error\n"); 
        printf("*** probably means that the wrong copy of the gtk-config shell script is\n"); 
        printf("*** being found. The easiest way to fix this is to remove the old version\n"); 
        printf("*** of GTK+, but you can also set the GTK_CONFIG environment to point to the\n"); 
        printf("*** correct copy of gtk-config. (In this case, you will have to\n"); 
        printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n"); 
        printf("*** so that the correct libraries are found at run-time))\n"); 
      } 
    } 
  return 1; 
} 
],, no_gtk=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"]) 
       CFLAGS="$ac_save_CFLAGS" 
       LIBS="$ac_save_LIBS" 
     fi 
  fi 
  if test "x$no_gtk" = x ; then 
     AC_MSG_RESULT(yes) 
     ifelse([$2], , :, [$2])      
  else 
     AC_MSG_RESULT(no) 
     if test "$GTK_CONFIG" = "no" ; then 
       echo " " 
       echo "*** Disregard this message if you do not want GTK+ plugins compiled." 
       echo " " 
       echo "*** The gtk-config script installed by GTK could not be found" 
       echo "*** If GTK was installed in PREFIX, make sure PREFIX/bin is in" 
       echo "*** your path, or set the GTK_CONFIG environment variable to the" 
       echo "*** full path to gtk-config." 
     else 
       if test -f conf.gtktest ; then 
        : 
       else 
          echo "*** Could not run GTK test program, checking why..." 
          CFLAGS="$CFLAGS $GTK_CFLAGS" 
          LIBS="$LIBS $GTK_LIBS" 
          AC_TRY_LINK([ 
#include  
#include  
],      [ return ((gtk_major_version) || (gtk_minor_version) || (gtk_micro_version)); ], 
        [ echo " " 
	  echo "*** Disregard this message if you do not want GTK+ plugins compiled." 
	  echo " " 
	  echo "*** The test program compiled, but did not run. This usually means" 
          echo "*** that the run-time linker is not finding GTK or finding the wrong" 
          echo "*** version of GTK. If it is not finding GTK, 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 "***" 
          echo "*** If you have a RedHat 5.0 system, you should remove the GTK package that" 
          echo "*** came with the system with the command" 
          echo "***" 
          echo "***    rpm --erase --nodeps gtk gtk-devel" ], 
        [ echo " " 
	  echo "*** Disregard this message if you do not want GTK+ plugins compiled." 
	  echo " " 
	  echo "*** The test program failed to compile or link. See the file config.log for the" 
          echo "*** exact error that occured. This usually means GTK was incorrectly installed" 
          echo "*** or that you have moved GTK since it was installed. In the latter case, you" 
          echo "*** may want to edit the gtk-config script: $GTK_CONFIG" ]) 
          CFLAGS="$ac_save_CFLAGS" 
          LIBS="$ac_save_LIBS" 
       fi 
     fi 
     GTK_CFLAGS="" 
     GTK_LIBS="" 
     ifelse([$3], , :, [$3]) 
  fi 
  AC_SUBST(GTK_CFLAGS) 
  AC_SUBST(GTK_LIBS) 
  rm -f conf.gtktest 
])