From cdc7f681c87b0b6379de04066c25fdeb6de96405 Mon Sep 17 00:00:00 2001
From: Brian Paul <brianp@vmware.com>
Date: Tue, 14 Apr 2009 19:44:16 -0600
Subject: mesa: use standard offsetof() macro

---
 src/mesa/main/extensions.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c
index 147d923e64..5c4bea9cf6 100644
--- a/src/mesa/main/extensions.c
+++ b/src/mesa/main/extensions.c
@@ -31,7 +31,7 @@
 #include "mtypes.h"
 
 
-#define F(x) (int)(uintptr_t)&(((struct gl_extensions *)0)->x)
+#define F(x) offsetof(struct gl_extensions, x)
 #define ON GL_TRUE
 #define OFF GL_FALSE
 
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