[grits] Update mac integration

[Andy Spencer <andys src gnome org>]

commit ef7f210460467324ba3707c6892f44be7f1fe939
Author: Andy Spencer <andy753421 gmail com>
Date:   Sun Dec 30 06:52:50 2012 +0000

    Update mac integration

 examples/gl/gl.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/examples/gl/gl.c b/examples/gl/gl.c
index ca7811f..1f84486 100644
--- a/examples/gl/gl.c
+++ b/examples/gl/gl.c
@@ -236,6 +236,8 @@ gboolean expose(GtkWidget *widget, GdkEventExpose *event, gpointer user_data)
  * Mac OSX implementation *
  **************************/
 #elif defined(SYS_MAC)
+#include <OpenGL/gl.h>
+#include <OpenGL/glu.h>
 #include <gdk/gdkquartz.h>
 gpointer setup(GtkWidget *widget)
 {