--- gc/tests/test_atomic_ops.c	2026-07-10 03:44:45.000000000 +0800
+++ gc/tests/test_atomic_ops.c	2026-08-05 10:57:07.000000000 +0800
@@ -20,7 +20,7 @@
 
 #include <stdio.h>
 
-#if defined(GC_BUILTIN_ATOMIC) || defined(GC_THREADS)
+#if (defined(GC_BUILTIN_ATOMIC) || defined(GC_THREADS)) && !defined(__APPLE__)
 
 # include <stdlib.h>