From 463ce4ae2dc5214f1b3ce5951c7cc3904c903702 Mon Sep 17 00:00:00 2001
From: Eric Sunshine <sunshine@sunshineco.com>
Date: Tue, 1 Nov 2011 05:39:49 -0400
Subject: [PATCH] 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>
---
 qemu-barrier.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/qemu-barrier.h b/qemu-barrier.h
index 735eea6cf9..c11bb2b59f 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