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$NetBSD: patch-include_iatomic.h,v 1.1 2012/08/02 12:52:33 jperkin Exp $
Use __asm__ and __volatile__
--- include/iatomic.h.orig Thu Aug 2 12:47:59 2012
+++ include/iatomic.h Thu Aug 2 12:49:53 2012
@@ -211,9 +211,9 @@
#define rmb() mb()
#define wmb() __asm__ __volatile__ ("": : :"memory")
#else
-#define mb() asm volatile("mfence":::"memory")
-#define rmb() asm volatile("lfence":::"memory")
-#define wmb() asm volatile("sfence":::"memory")
+#define mb() __asm__ __volatile__ ("mfence":::"memory")
+#define rmb() __asm__ __volatile__ ("lfence":::"memory")
+#define wmb() __asm__ __volatile__ ("sfence":::"memory")
#endif
#undef ATOMIC_SMP_LOCK
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