From 65181c9ad63f2631c0add7fc1a68bf7b3388ac58 Mon Sep 17 00:00:00 2001
From: Marius Kintel <marius@kintel.net>
Date: Sun, 29 Jan 2012 13:20:40 +0100
Subject: Windows compile fix. Fixes #73


diff --git a/src/system-gl.h b/src/system-gl.h
index 76b49e7..0377b72 100644
--- a/src/system-gl.h
+++ b/src/system-gl.h
@@ -4,9 +4,12 @@
 #include <GL/glew.h>
 
 #ifdef __APPLE__
-#include <OpenGL/OpenGL.h>
+ #include <OpenGL/OpenGL.h>
 #else
-#include <GL/gl.h>
+ #include <GL/gl.h>
+ #ifdef _WIN32
+  #include <windows.h> // For the CALLBACK macro
+ #endif
 #endif
 
 #endif
-- 
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