From 1a2b512ff0965442f99662ff276cc0fb6f5aa611 Mon Sep 17 00:00:00 2001
From: Filippos Karapetis
Date: Wed, 1 Dec 2010 14:54:13 +0000
Subject: BACKENDS: Use SDL_opengl.h instead of the nonstandard glext.h to
 ensure OpenGL 1.2 compatibility in Windows systems

svn-id: r54700
---
 backends/graphics/opengl/gltexture.h | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/backends/graphics/opengl/gltexture.h b/backends/graphics/opengl/gltexture.h
index 944cdf221c..c5a06bbc54 100644
--- a/backends/graphics/opengl/gltexture.h
+++ b/backends/graphics/opengl/gltexture.h
@@ -36,11 +36,16 @@
 #include <GLES/gl.h>
 #elif defined(MACOSX)
 #include <OpenGL/gl.h>
-#elif defined(WIN32)
-#include <GL/gl.h>
-#include <GL/glext.h>
 #else
+
 #include <GL/gl.h>
+#if defined(SDL_BACKEND) && !defined(GL_VERSION_1_2)
+// The OpenGL libraries included in Windows are for OpenGL 1.1. Use the SDL
+// OpenGL header file to enable the additional needed defines for OpenGL 1.2
+// here.
+#include <SDL_opengl.h>
+#endif
+
 #endif
 
 #include "graphics/surface.h"
-- 
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