--- php-gtk-2.0.0/main/php_gtk.h	2008-02-29 19:05:53.000000000 +0000
+++ php-gtk-2.0.0/main/php_gtk.h	2008-03-04 11:08:30.000000000 +0000
@@ -60,6 +60,11 @@
 #include "zend_exceptions.h"
 #include "zend_extensions.h"
 
+/* for older php versions */
+#ifndef ZEND_MN
+#define ZEND_MN ZEND_FN
+#endif
+
 #define PHP_GTK_VERSION "2.0.0-dev"
 
 #ifdef PHP_WIN32