--- gdk/gdkglquery.c.orig	2009-08-24 14:43:25.000000000 +0400
+++ gdk/gdkglquery.c	2009-08-24 14:44:18.000000000 +0400
@@ -27,7 +27,11 @@
 #include <windows.h>
 #endif
 
+#ifdef GDK_WINDOWING_QUARTZ
+#include <OpenGL/gl.h>
+#else
 #include <GL/gl.h>
+#endif
 
 /*
  * This code is based on glutExtensionSupported().
