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-rw-r--r--src/mesa/main/extensions.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c
index 147d923e64f..5c4bea9cf62 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