From f929524b3c4ac5e996725120966c818e15458f12 Mon Sep 17 00:00:00 2001
From: David Chisnall <dchisnall@pathscale.com>
Date: Fri, 25 Nov 2011 11:46:22 +0000
Subject: Fix the build on compilers that don't have a __has_builtin

---
 src/memory.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/memory.cc b/src/memory.cc
index 027bc3f..9a40b7f 100644
--- a/src/memory.cc
+++ b/src/memory.cc
@@ -11,6 +11,10 @@
 #include <stdlib.h>
 #include "stdexcept.h"
 
+#ifndef __has_builtin
+#define __has_builtin(x) 0
+#endif
+
 #if !__has_builtin(__sync_swap)
 #define __sync_swap __sync_lock_test_and_set
 #endif
-- 
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