gtk.m4 patch

[Tero Pulkkinen <terop students cc tut fi>]

Here's a patch for gtk.m4 that will add CXXFLAGS support for it.

The gtk.m4 did not work correctly if there was AC_PROC_CC, AC_PROC_CXX and
AC_LANG_CPLUSPLUS in the configure.in.

(still, it would prolly be better if AC_SUBST(GTK_CXXFLAGS) could be used,
but I couldnt get that one working, so it modifies CXXFLAGS directly.. )

-- 
-- Tero Pulkkinen -- terop@modeemi.cs.tut.fi --

--- gtk.m4	Wed Mar 18 00:04:12 1998
+++ /home/p150650/modeemi-b/automake/share/aclocal/gtk.m4	Wed Mar 18 01:31:28 1998
@@ -17,7 +17,9 @@
     GTK_LIBS=`$GTK_CONFIG --libs`
     ac_save_CFLAGS="$CFLAGS"
     ac_save_LIBS="$LIBS"
+    ac_save_CXXFLAGS="$CXXFLAGS"
     CFLAGS="$CFLAGS $GTK_CFLAGS"
+    CXXFLAGS="$CXXFLAGS $GTK_CFLAGS"
     LIBS="$LIBS $GTK_LIBS"
 dnl
 dnl Now check if the installed GTK is sufficiently new. (Also sanity
@@ -43,6 +45,7 @@
 }
 ],, no_gtk=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
      CFLAGS="$ac_save_CFLAGS"
+     CXXFLAGS="$ac_save_CXXFLAGS"
      LIBS="$ac_save_LIBS"
   else
      no_gtk=yes
@@ -56,6 +59,9 @@
      GTK_LIBS=""
      ifelse([$3], , :, [$3])
   fi
+  CXXFLAGS="$CXXFLAGS $GTK_CFLAGS"
+  AC_SUBST(CXXFLAGS)
   AC_SUBST(GTK_CFLAGS)
   AC_SUBST(GTK_LIBS)
 ])
+