From efa2ed59c7e58dfd158255b84126ba50287c8a85 Mon Sep 17 00:00:00 2001
From: Juan Pablo Ugarte <ugarte@endlessm.com>
Date: Wed, 11 Jan 2017 10:32:23 -0300
Subject: [PATCH] gl/examples/gtk: fixed compilation on systems without
 GL_GEOMETRY_SHADER

https://bugzilla.gnome.org/show_bug.cgi?id=777143
---
 tests/examples/gtk/glliveshader.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tests/examples/gtk/glliveshader.c b/tests/examples/gtk/glliveshader.c
index d8c8d35..5a71bc3 100644
--- a/tests/examples/gtk/glliveshader.c
+++ b/tests/examples/gtk/glliveshader.c
@@ -25,6 +25,10 @@
 #include <X11/Xlib.h>
 #endif
 
+#ifndef GL_GEOMETRY_SHADER
+#define GL_GEOMETRY_SHADER 0x8DD9
+#endif
+
 static GMainLoop *loop;
 
 static const gchar *vert = "#version 330\n\
-- 
2.7.4