* Added gsockcocoa.c to files list

[wxWidgets.git] / aclocal.m4

diff --git a/aclocal.m4 b/aclocal.m4
index 95e83ca11f96e9ac66d983b386fe0069eb46003b..2f8507f5c75c8342487c48fb2edc865614f23ff5 100644 (file)
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -1,6 +1,6 @@
-dnl aclocal.m4 generated automatically by aclocal 1.4
+dnl aclocal.m4 generated automatically by aclocal 1.4-p6

 
 

-dnl Copyright (C) 1994, 1995-8, 1999 Free Software Foundation, Inc.
+dnl Copyright (C) 1994, 1995-8, 1999, 2001 Free Software Foundation, Inc.

 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.


@@ -31,7 +31,7 @@ dnl ---------------------------------------------------------------------------
 AC_DEFUN([WX_PATH_FIND_INCLUDES],
 [
 ac_find_includes=
 AC_DEFUN([WX_PATH_FIND_INCLUDES],
 [
 ac_find_includes=

-for ac_dir in $1;
+for ac_dir in $1 /usr/include;

   do
     if test -f "$ac_dir/$2"; then
       ac_find_includes=$ac_dir
   do
     if test -f "$ac_dir/$2"; then
       ac_find_includes=$ac_dir


@@ -47,7 +47,7 @@ dnl ---------------------------------------------------------------------------
 AC_DEFUN([WX_PATH_FIND_LIBRARIES],
 [
 ac_find_libraries=
 AC_DEFUN([WX_PATH_FIND_LIBRARIES],
 [
 ac_find_libraries=

-for ac_dir in $1;
+for ac_dir in $1 /usr/lib;

   do
     for ac_extension in a so sl dylib; do
       if test -f "$ac_dir/lib$2.$ac_extension"; then
   do
     for ac_extension in a so sl dylib; do
       if test -f "$ac_dir/lib$2.$ac_extension"; then


@@ -63,13 +63,17 @@ dnl Path to include, already defined
 dnl ---------------------------------------------------------------------------
 AC_DEFUN([WX_INCLUDE_PATH_EXIST],
 [
 dnl ---------------------------------------------------------------------------
 AC_DEFUN([WX_INCLUDE_PATH_EXIST],
 [

-  ac_path_to_include=$1
-  echo "$2" | grep "\-I$1" > /dev/null
-  result=$?
-  if test $result = 0; then
+  dnl never add -I/usr/include to the CPPFLAGS
+  if test "x$1" = "x/usr/include"; then

     ac_path_to_include=""
   else
     ac_path_to_include=""
   else

-    ac_path_to_include=" -I$1"
+    echo "$2" | grep "\-I$1" > /dev/null
+    result=$?
+    if test $result = 0; then
+      ac_path_to_include=""
+    else
+      ac_path_to_include=" -I$1"
+    fi

   fi
 ])
 
   fi
 ])
 


@@ -156,6 +160,53 @@ AC_DEFUN([WX_CPP_BOOL],
   fi
 ])
 
   fi
 ])
 

+dnl ---------------------------------------------------------------------------
+dnl WX_CPP_EXPLICIT checks whether the C++ compiler support the explicit
+dnl keyword and defines HAVE_EXPLICIT if this is the case
+dnl ---------------------------------------------------------------------------
+
+AC_DEFUN([WX_CPP_EXPLICIT],
+[
+  AC_CACHE_CHECK([if C++ compiler supports the explicit keyword],
+                 wx_cv_explicit,
+  [
+    AC_LANG_SAVE
+    AC_LANG_CPLUSPLUS
+
+    dnl do the test in 2 steps: first check that the compiler knows about the
+    dnl explicit keyword at all and then verify that it really honours it
+    AC_TRY_COMPILE(
+      [
+        class Foo { public: explicit Foo(int) {} };
+      ],
+      [
+        return 0;
+      ],
+      [
+        AC_TRY_COMPILE(
+            [
+                class Foo { public: explicit Foo(int) {} };
+                static void TakeFoo(const Foo& foo) { }
+            ],
+            [
+                TakeFoo(17);
+                return 0;
+            ],
+            wx_cv_explicit=no,
+            wx_cv_explicit=yes
+        )
+      ],
+      wx_cv_explicit=no
+    )
+
+    AC_LANG_RESTORE
+  ])
+
+  if test "$wx_cv_explicit" = "yes"; then
+    AC_DEFINE(HAVE_EXPLICIT)
+  fi
+])
+

 dnl ---------------------------------------------------------------------------
 dnl a slightly better AC_C_BIGENDIAN macro which allows cross-compiling
 dnl ---------------------------------------------------------------------------
 dnl ---------------------------------------------------------------------------
 dnl a slightly better AC_C_BIGENDIAN macro which allows cross-compiling
 dnl ---------------------------------------------------------------------------


@@ -301,10 +352,15 @@ AC_DEFUN([WX_ARG_WITH],
         ])
 
 dnl like WX_ARG_WITH but uses AC_ARG_ENABLE instead of AC_ARG_WITH
         ])
 
 dnl like WX_ARG_WITH but uses AC_ARG_ENABLE instead of AC_ARG_WITH

-dnl usage: WX_ARG_ENABLE(option, helpmessage, variable-name)
+dnl usage: WX_ARG_ENABLE(option, helpmessage, variable-name, enablestring)
+dnl
+dnl enablestring is a hack and allows to show "checking for --disable-foo"
+dnl message when running configure instead of the default "checking for
+dnl --enable-foo" one whih is useful for the options enabled by default

 AC_DEFUN([WX_ARG_ENABLE],
         [
 AC_DEFUN([WX_ARG_ENABLE],
         [

-          AC_MSG_CHECKING([for --enable-$1])
+         enablestring=$4
+          AC_MSG_CHECKING([for --${enablestring:-enable}-$1])

           no_cache=0
           AC_ARG_ENABLE($1, [$2],
                         [
           no_cache=0
           AC_ARG_ENABLE($1, [$2],
                         [


@@ -338,12 +394,64 @@ AC_DEFUN([WX_ARG_ENABLE],
         ])
 
 
         ])
 
 

+dnl ===========================================================================
+dnl Linker features test
+dnl ===========================================================================
+
+dnl ---------------------------------------------------------------------------
+dnl WX_VERSIONED_SYMBOLS checks whether the linker can create versioned
+dnl symbols. If it can, sets LDFLAGS_VERSIONING to $CXX flags needed to use
+dnl version script file named versionfile
+dnl
+dnl call WX_VERSIONED_SYMBOLS(versionfile)
+dnl ---------------------------------------------------------------------------
+AC_DEFUN([WX_VERSIONED_SYMBOLS],
+[
+  found_versioning=no
+
+  dnl FIXME - doesn't work, Solaris linker doesn't accept wildcards
+  dnl         in the script.
+  dnl dnl Check for known non-gcc cases:
+  dnl case "${host}" in
+  dnl   *-*-solaris2* )
+  dnl     if test "x$GCC" != "xyes" ; then
+  dnl         LDFLAGS_VERSIONING="-M $1"
+  dnl         found_versioning=yes
+  dnl     fi
+  dnl   ;;
+  dnl esac
+  
+  dnl Generic check for GCC or GCC-like behaviour (Intel C++, GCC):
+  if test $found_versioning = no ; then
+      AC_CACHE_CHECK([if the linker accepts --version-script], wx_cv_version_script,
+      [
+        echo "VER_1 { *; };" >conftest.sym
+        echo "int main() { return 0; }" >conftest.cpp
+  
+        if AC_TRY_COMMAND([
+                $CXX -o conftest.output $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.cpp
+                -Wl,--version-script,conftest.sym >/dev/null 2>conftest.stderr]) ; then
+          if test -s conftest.stderr ; then
+              wx_cv_version_script=no
+          else
+              wx_cv_version_script=yes
+          fi
+        else
+          wx_cv_version_script=no
+        fi
+        rm -f conftest.output conftest.stderr conftest.sym conftest.cpp
+      ])
+      if test $wx_cv_version_script = yes ; then
+        LDFLAGS_VERSIONING="-Wl,--version-script,$1"
+      fi
+  fi
+])
+

 
 dnl ===========================================================================
 dnl "3rd party" macros included here because they are not widely available
 dnl ===========================================================================
 
 
 dnl ===========================================================================
 dnl "3rd party" macros included here because they are not widely available
 dnl ===========================================================================
 

-

 dnl ---------------------------------------------------------------------------
 dnl test for availability of iconv()
 dnl ---------------------------------------------------------------------------
 dnl ---------------------------------------------------------------------------
 dnl test for availability of iconv()
 dnl ---------------------------------------------------------------------------


@@ -408,7 +516,7 @@ size_t iconv();
     )
 
     iconv_const=
     )
 
     iconv_const=

-    if test "x$wx_cv_func_iconv_const" != "xyes"; then
+    if test "x$wx_cv_func_iconv_const" = "xyes"; then

         iconv_const="const"
     fi
 
         iconv_const="const"
     fi
 


@@ -422,61 +530,152 @@ size_t iconv();
   AC_SUBST(LIBICONV)
 ])
 
   AC_SUBST(LIBICONV)
 ])
 

-

 dnl ---------------------------------------------------------------------------
 dnl ---------------------------------------------------------------------------

-dnl test for GTK+ 2.0
+dnl AC_SYS_LARGEFILE (partly based on the code from autoconf 2.5x)

 dnl ---------------------------------------------------------------------------
 
 dnl ---------------------------------------------------------------------------
 

+dnl WX_SYS_LARGEFILE_TEST
+dnl
+dnl NB: original autoconf test was checking if compiler supported 6 bit off_t
+dnl     arithmetic properly but this failed miserably with gcc under Linux
+dnl     whereas the system still supports 64 bit files, so now simply check
+dnl     that off_t is big enough
+define(WX_SYS_LARGEFILE_TEST,
+[typedef struct {
+    unsigned int field: sizeof(off_t) == 8;
+} wxlf;
+])
+
+
+dnl WX_SYS_LARGEFILE_MACRO_VALUE(C-MACRO, VALUE, CACHE-VAR)
+define(WX_SYS_LARGEFILE_MACRO_VALUE,
+[
+    AC_CACHE_CHECK([for $1 value needed for large files], [$3],
+        [
+          AC_TRY_COMPILE([#define $1 $2
+                          #include <sys/types.h>],
+                         WX_SYS_LARGEFILE_TEST,
+                         [$3=$2],
+                         [$3=no])
+        ]
+    )
+
+    if test "$$3" != no; then
+        wx_largefile=yes
+        AC_DEFINE_UNQUOTED([$1], [$$3])
+    fi
+])
+
+
+dnl AC_SYS_LARGEFILE
+dnl ----------------
+dnl By default, many hosts won't let programs access large files;
+dnl one must use special compiler options to get large-file access to work.
+dnl For more details about this brain damage please see:
+dnl http://www.sas.com/standards/large.file/x_open.20Mar96.html
+AC_DEFUN([AC_SYS_LARGEFILE],
+[AC_ARG_ENABLE(largefile,
+               [  --disable-largefile     omit support for large files])
+if test "$enable_largefile" != no; then
+    dnl _FILE_OFFSET_BITS==64 is needed for Linux, Solaris, ...
+    dnl _LARGE_FILES -- for AIX
+    wx_largefile=no
+    WX_SYS_LARGEFILE_MACRO_VALUE(_FILE_OFFSET_BITS, 64, ac_cv_sys_file_offset_bits)
+    if test "x$wx_largefile" != "xyes"; then
+        WX_SYS_LARGEFILE_MACRO_VALUE(_LARGE_FILES, 1, ac_cv_sys_large_files)
+    fi
+
+    AC_MSG_CHECKING(if large file support is available)
+    if test "x$wx_largefile" = "xyes"; then
+        AC_DEFINE(HAVE_LARGEFILE_SUPPORT)
+    fi
+    AC_MSG_RESULT($wx_largefile)
+fi
+])
+
+
+dnl Available from the GNU Autoconf Macro Archive at:
+dnl http://www.gnu.org/software/ac-archive/htmldoc/ac_cxx_const_cast.html
+dnl
+AC_DEFUN([AC_CXX_CONST_CAST],
+[AC_CACHE_CHECK(whether the compiler supports const_cast<>,
+ac_cv_cxx_const_cast,
+[AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+ AC_TRY_COMPILE(,[int x = 0;const int& y = x;int& z = const_cast<int&>(y);return z;],
+ ac_cv_cxx_const_cast=yes, ac_cv_cxx_const_cast=no)
+ AC_LANG_RESTORE
+])
+if test "$ac_cv_cxx_const_cast" = yes; then
+  AC_DEFINE(HAVE_CONST_CAST,,[define if the compiler supports const_cast<>])
+fi
+])
+
+# Configure paths for GTK+
+# Owen Taylor     1997-2001
+

 dnl AM_PATH_GTK_2_0([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, MODULES]]]])
 dnl AM_PATH_GTK_2_0([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, MODULES]]]])

-dnl Test for GTK, and define GTK_CFLAGS and GTK_LIBS
+dnl Test for GTK+, and define GTK_CFLAGS and GTK_LIBS, if gthread is specified in MODULES, 
+dnl pass to pkg-config

 dnl
 AC_DEFUN(AM_PATH_GTK_2_0,
 dnl
 AC_DEFUN(AM_PATH_GTK_2_0,

-[dnl
-dnl Get the cflags and libraries from the gtk-config-2.0 script
+[dnl 
+dnl Get the cflags and libraries from pkg-config

 dnl
 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)
+AC_ARG_ENABLE(gtktest, [  --disable-gtktest       do not try to compile and run a test GTK+ program],
+                   , enable_gtktest=yes)

 
 

+  pkg_config_args=gtk+-2.0

   for module in . $4
   do
       case "$module" in
   for module in . $4
   do
       case "$module" in

-         gthread)
-             gtk_config_args="$gtk_config_args gthread"
+         gthread) 
+             pkg_config_args="$pkg_config_args gthread-2.0"

          ;;
       esac
   done
 
          ;;
       esac
   done
 

-  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_2_0+set} != xset ; then
-        GTK_CONFIG_2_0=$gtk_config_exec_prefix/bin/gtk-config-2.0
-     fi
+  no_gtk=""
+
+  AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
+
+  if test x$PKG_CONFIG != xno ; then
+    if pkg-config --atleast-pkgconfig-version 0.7 ; then
+      :
+    else
+      echo *** pkg-config too old; version 0.7 or better required.
+      no_gtk=yes
+      PKG_CONFIG=no
+    fi
+  else
+    no_gtk=yes

   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_2_0+set} != xset ; then
-        GTK_CONFIG_2_0=$gtk_config_prefix/bin/gtk-config-2.0
-     fi
+
+  min_gtk_version=ifelse([$1], ,2.0.0,$1)
+  AC_MSG_CHECKING(for GTK+ - version >= $min_gtk_version)
+
+  if test x$PKG_CONFIG != xno ; then
+    ## don't try to run the test against uninstalled libtool libs
+    if $PKG_CONFIG --uninstalled $pkg_config_args; then
+         echo "Will use uninstalled version of GTK+ found in PKG_CONFIG_PATH"
+         enable_gtktest=no
+    fi
+
+    if $PKG_CONFIG --atleast-version $min_gtk_version $pkg_config_args; then
+         :
+    else
+         no_gtk=yes
+    fi

   fi
 
   fi
 

-  AC_PATH_PROG(GTK_CONFIG_2_0, gtk-config-2.0, no)
-  min_gtk_version=ifelse([$1], ,1.3.1,$1)
-  AC_MSG_CHECKING(for GTK - version >= $min_gtk_version)
-  no_gtk=""
-  if test "$GTK_CONFIG_2_0" = "no" ; then
-    no_gtk=yes
-  else
-    GTK_CFLAGS=`$GTK_CONFIG_2_0 $gtk_config_args --cflags`
-    GTK_LIBS=`$GTK_CONFIG_2_0 $gtk_config_args --libs`
-    gtk_config_major_version=`$GTK_CONFIG_2_0 $gtk_config_args --version | \
+  if test x"$no_gtk" = x ; then
+    GTK_CFLAGS=`$PKG_CONFIG $pkg_config_args --cflags`
+    GTK_LIBS=`$PKG_CONFIG $pkg_config_args --libs`
+    gtk_config_major_version=`$PKG_CONFIG --modversion gtk+-2.0 | \

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

-    gtk_config_minor_version=`$GTK_CONFIG_2_0 $gtk_config_args --version | \
+    gtk_config_minor_version=`$PKG_CONFIG --modversion gtk+-2.0 | \

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

-    gtk_config_micro_version=`$GTK_CONFIG_2_0 $gtk_config_args --version | \
+    gtk_config_micro_version=`$PKG_CONFIG --modversion gtk+-2.0 | \

            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
     if test "x$enable_gtktest" = "xyes" ; then
       ac_save_CFLAGS="$CFLAGS"
            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
     if test "x$enable_gtktest" = "xyes" ; then
       ac_save_CFLAGS="$CFLAGS"


@@ -484,8 +683,8 @@ AC_ARG_ENABLE(gtktest, [  --disable-gtktest       Do not try to compile and run
       CFLAGS="$CFLAGS $GTK_CFLAGS"
       LIBS="$GTK_LIBS $LIBS"
 dnl
       CFLAGS="$CFLAGS $GTK_CFLAGS"
       LIBS="$GTK_LIBS $LIBS"
 dnl

-dnl Now check if the installed GTK is sufficiently new. (Also sanity
-dnl checks the results of gtk-config-2.0 to some extent
+dnl Now check if the installed GTK+ is sufficiently new. (Also sanity
+dnl checks the results of pkg-config to some extent)

 dnl
       rm -f conf.gtktest
       AC_TRY_RUN([
 dnl
       rm -f conf.gtktest
       AC_TRY_RUN([


@@ -493,7 +692,7 @@ dnl
 #include <stdio.h>
 #include <stdlib.h>
 
 #include <stdio.h>
 #include <stdlib.h>
 

-int
+int 

 main ()
 {
   int major, minor, micro;
 main ()
 {
   int major, minor, micro;


@@ -512,29 +711,26 @@ main ()
       (gtk_minor_version != $gtk_config_minor_version) ||
       (gtk_micro_version != $gtk_config_micro_version))
     {
       (gtk_minor_version != $gtk_config_minor_version) ||
       (gtk_micro_version != $gtk_config_micro_version))
     {

-      printf("\n*** 'gtk-config-2.0 --version' returned %d.%d.%d, but GTK+ (%d.%d.%d)\n",
+      printf("\n*** 'pkg-config --modversion gtk+-2.0' 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);
              $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-2.0 was correct, then it is best\n");
+      printf ("*** was found! If pkg-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 ("*** 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-2.0 was wrong, set the environment variable GTK_CONFIG_2_0\n");
-      printf("*** to point to the correct copy of gtk-config-2.0, and remove the file config.cache\n");
-      printf("*** before re-running configure\n");
-    }
-#if defined (GTK_MAJOR_VERSION) && defined (GTK_MINOR_VERSION) && defined (GTK_MICRO_VERSION)
+      printf("*** If pkg-config was wrong, set the environment variable PKG_CONFIG_PATH\n");
+      printf("*** to point to the correct configuration files\n");
+    } 

   else if ((gtk_major_version != GTK_MAJOR_VERSION) ||
   else if ((gtk_major_version != GTK_MAJOR_VERSION) ||

-           (gtk_minor_version != GTK_MINOR_VERSION) ||
+          (gtk_minor_version != GTK_MINOR_VERSION) ||

            (gtk_micro_version != GTK_MICRO_VERSION))
     {
       printf("*** GTK+ header files (version %d.%d.%d) do not match\n",
            (gtk_micro_version != GTK_MICRO_VERSION))
     {
       printf("*** GTK+ header files (version %d.%d.%d) do not match\n",

-             GTK_MAJOR_VERSION, GTK_MINOR_VERSION, GTK_MICRO_VERSION);
+            GTK_MAJOR_VERSION, GTK_MINOR_VERSION, GTK_MICRO_VERSION);

       printf("*** library (version %d.%d.%d)\n",
       printf("*** library (version %d.%d.%d)\n",

-             gtk_major_version, gtk_minor_version, gtk_micro_version);
+            gtk_major_version, gtk_minor_version, gtk_micro_version);

     }
     }

-#endif /* defined (GTK_MAJOR_VERSION) ... */

   else
     {
       if ((gtk_major_version > major) ||
   else
     {
       if ((gtk_major_version > major) ||


@@ -548,14 +744,14 @@ main ()
         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",
         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);
+              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("*** 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-2.0 shell script is\n");
+        printf("*** probably means that the wrong copy of the pkg-config shell script is\n");

         printf("*** being found. The easiest way to fix this is to remove the old version\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_2_0 environment to point to the\n");
-        printf("*** correct copy of gtk-config-2.0. (In this case, you will have to\n");
+        printf("*** of GTK+, but you can also set the PKG_CONFIG environment to point to the\n");
+        printf("*** correct copy of pkg-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");
       }
         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");
       }


@@ -569,19 +765,19 @@ main ()
   fi
   if test "x$no_gtk" = x ; then
      AC_MSG_RESULT(yes (version $gtk_config_major_version.$gtk_config_minor_version.$gtk_config_micro_version))
   fi
   if test "x$no_gtk" = x ; then
      AC_MSG_RESULT(yes (version $gtk_config_major_version.$gtk_config_minor_version.$gtk_config_micro_version))

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

   else
      AC_MSG_RESULT(no)
   else
      AC_MSG_RESULT(no)

-     if test "$GTK_CONFIG_2_0" = "no" ; then
-       echo "*** The gtk-config-2.0 script installed by GTK could not be found"
-       echo "*** If GTK was installed in PREFIX, make sure PREFIX/bin is in"
-       echo "*** your path, or set the GTK_CONFIG_2_0 environment variable to the"
-       echo "*** full path to gtk-config-2.0."
+     if test "$PKG_CONFIG" = "no" ; then
+       echo "*** A new enough version of pkg-config was not found."
+       echo "*** See http://pkgconfig.sourceforge.net"

      else
        if test -f conf.gtktest ; then
         :
        else
      else
        if test -f conf.gtktest ; then
         :
        else

-          echo "*** Could not run GTK test program, checking why..."
+          echo "*** Could not run GTK+ test program, checking why..."
+         ac_save_CFLAGS="$CFLAGS"
+         ac_save_LIBS="$LIBS"

           CFLAGS="$CFLAGS $GTK_CFLAGS"
           LIBS="$LIBS $GTK_LIBS"
           AC_TRY_LINK([
           CFLAGS="$CFLAGS $GTK_CFLAGS"
           LIBS="$LIBS $GTK_LIBS"
           AC_TRY_LINK([


@@ -589,23 +785,16 @@ main ()
 #include <stdio.h>
 ],      [ return ((gtk_major_version) || (gtk_minor_version) || (gtk_micro_version)); ],
         [ echo "*** The test program compiled, but did not run. This usually means"
 #include <stdio.h>
 ],      [ return ((gtk_major_version) || (gtk_minor_version) || (gtk_micro_version)); ],
         [ 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 "*** 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 "*** 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 "***"

           echo "*** If you have an old version installed, it is best to remove it, although"
           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 "*** 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 "*** 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-2.0 script: $GTK_CONFIG_2_0" ])
+          echo "*** exact error that occured. This usually means GTK+ is incorrectly installed."])

           CFLAGS="$ac_save_CFLAGS"
           LIBS="$ac_save_LIBS"
        fi
           CFLAGS="$ac_save_CFLAGS"
           LIBS="$ac_save_LIBS"
        fi


@@ -814,3 +1003,61 @@ main ()
   rm -f conf.gtktest
 ])
 
   rm -f conf.gtktest
 ])
 

+
+dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
+dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
+dnl also defines GSTUFF_PKG_ERRORS on error
+AC_DEFUN(PKG_CHECK_MODULES, [
+  succeeded=no
+
+  if test -z "$PKG_CONFIG"; then
+    AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
+  fi
+
+  if test "$PKG_CONFIG" = "no" ; then
+     echo "*** The pkg-config script could not be found. Make sure it is"
+     echo "*** in your path, or set the PKG_CONFIG environment variable"
+     echo "*** to the full path to pkg-config."
+     echo "*** Or see http://www.freedesktop.org/software/pkgconfig to get pkg-config."
+  else
+     PKG_CONFIG_MIN_VERSION=0.9.0
+     if $PKG_CONFIG --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
+        AC_MSG_CHECKING(for $2)
+
+        if $PKG_CONFIG --exists "$2" ; then
+            AC_MSG_RESULT(yes)
+            succeeded=yes
+
+            AC_MSG_CHECKING($1_CFLAGS)
+            $1_CFLAGS=`$PKG_CONFIG --cflags "$2"`
+            AC_MSG_RESULT($$1_CFLAGS)
+
+            AC_MSG_CHECKING($1_LIBS)
+            $1_LIBS=`$PKG_CONFIG --libs "$2"`
+            AC_MSG_RESULT($$1_LIBS)
+        else
+            $1_CFLAGS=""
+            $1_LIBS=""
+            ## If we have a custom action on failure, don't print errors, but 
+            ## do set a variable so people can do so.
+            $1_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
+            ifelse([$4], ,echo $$1_PKG_ERRORS,)
+        fi
+
+        AC_SUBST($1_CFLAGS)
+        AC_SUBST($1_LIBS)
+     else
+        echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
+        echo "*** See http://www.freedesktop.org/software/pkgconfig"
+     fi
+  fi
+
+  if test $succeeded = yes; then
+     ifelse([$3], , :, [$3])
+  else
+     ifelse([$4], , AC_MSG_ERROR([Library requirements ($2) not met; consider adjusting the PKG_CONFIG_PATH environment variable if your libraries are in a nonstandard prefix so pkg-config can find them.]), [$4])
+  fi
+])
+
+
+