[gtk+] gdkglcontext-x11: Use epoxy/glx.h rather then GL/glx.h

[Rico Tzschichholz <ricotz src gnome org>]

commit 0144861dca17439ccb241a5c136e2bd885f490d2
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Wed Oct 22 20:37:58 2014 +0200

    gdkglcontext-x11: Use epoxy/glx.h rather then GL/glx.h

 gdk/x11/gdkglcontext-x11.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gdk/x11/gdkglcontext-x11.c b/gdk/x11/gdkglcontext-x11.c
index 3ddb05e..7db5376 100644
--- a/gdk/x11/gdkglcontext-x11.c
+++ b/gdk/x11/gdkglcontext-x11.c
@@ -36,7 +36,7 @@
 
 #include <cairo/cairo-xlib.h>
 
-#include <GL/glx.h>
+#include <epoxy/glx.h>
 
 G_DEFINE_TYPE (GdkX11GLContext, gdk_x11_gl_context, GDK_TYPE_GL_CONTEXT)