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-rw-r--r--include/SDL_atomic.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/SDL_atomic.h b/include/SDL_atomic.h
index 5c6eadb5b8..6a6a73f5bb 100644
--- a/include/SDL_atomic.h
+++ b/include/SDL_atomic.h
@@ -140,7 +140,7 @@ void _ReadWriteBarrier(void);
/* Platform specific optimized versions of the atomic functions,
* you can disable these by defining SDL_DISABLE_ATOMIC_INLINE
*/
-#if SDL_ATOMIC_DISABLED
+#if defined(SDL_ATOMIC_DISABLED) && SDL_ATOMIC_DISABLED
#define SDL_DISABLE_ATOMIC_INLINE
#endif
#ifndef SDL_DISABLE_ATOMIC_INLINE