--- libglademm-2.6.3/libglade/libglademm/xml.cc.orig	2006-05-18 12:09:35.000000000 -0700
+++ libglademm-2.6.3/libglade/libglademm/xml.cc	2007-06-28 03:24:42.000000000 -0700
@@ -142,6 +142,7 @@
 // Custom coded so that we can custom-code the vfunc in the Xml class.
 // This is marginally better than modifying gtkmmproc to allow this.
 //
+#ifdef GLIBMM_VFUNCS_ENABLED
 GType Xml_Class::lookup_type_vfunc_callback(GladeXML* self, const char* classname)
 {
   CppObjectType *const obj = dynamic_cast<CppObjectType*>(
@@ -170,6 +171,7 @@
 
   return 0;
 }
+#endif //GLIBMM_VFUNCS_ENABLED
 
 GType Xml::lookup_type_vfunc(const Glib::ustring& classname)
 {