From 596aadf1acfd316a568cc3eb7af9a646a5876db8 Mon Sep 17 00:00:00 2001
From: Nigel Stewart <nigels@users.sourceforge.net>
Date: Fri, 5 Jul 2013 11:49:11 -0500
Subject: [PATCH] Support for Mac OS X 10.5 Leopard

CGLShareGroupObj and IOSurfaceRef were added in 10.6 Snow Leopard SDK
Add workarounds to glimports.hpp to support building for pre-10.6.
---
 dispatch/glimports.hpp | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/dispatch/glimports.hpp b/dispatch/glimports.hpp
index e6d1d32..358135f 100644
--- a/dispatch/glimports.hpp
+++ b/dispatch/glimports.hpp
@@ -89,8 +89,22 @@ typedef struct _WGLSWAP
 #elif defined(__APPLE__)
 
 #include <OpenGL/OpenGL.h>
+
+#include <AvailabilityMacros.h>
+
+#ifndef MAC_OS_X_VERSION_10_6
+#define MAC_OS_X_VERSION_10_6 1060
+#endif
+
+#if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_6
 #include <OpenGL/CGLIOSurface.h>
 #include <OpenGL/CGLDevice.h>
+#else
+#define kCGLPFAAcceleratedCompute 97
+#define kCGLRPAcceleratedCompute 130
+typedef void *CGLShareGroupObj;
+typedef struct __IOSurface *IOSurfaceRef;
+#endif
 
 #ifndef CGL_VERSION_1_3
 #define kCGLPFAOpenGLProfile 99
-- 
2.45.2