qemu-barrier: Fix build failure on PowerPC Mac OS X
qemu-barrier.h tests if macro __powerpc__ is defined, however, the
preprocessor on PowerPC Mac OS X defines only __POWERPC__, not
__powerpc__. Resolve by testing instead for qemu-provided _ARCH_PPC.
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/qemu-barrier.h b/qemu-barrier.h
index 735eea6..c11bb2b 100644
--- a/qemu-barrier.h
+++ b/qemu-barrier.h
@@ -14,7 +14,7 @@
*/
#define smp_wmb() barrier()
-#elif defined(__powerpc__)
+#elif defined(_ARCH_PPC)
/*
* We use an eieio() for a wmb() on powerpc. This assumes we don't
