From e781266905a6176c59dea7c55893871b50a8a647 Mon Sep 17 00:00:00 2001
From: Eli Friedman <eli.friedman@gmail.com>
Date: Tue, 6 Mar 2012 01:21:14 +0000
Subject: [PATCH] Make sure to properly ifdef out an unused function on OSX <
 10.6.  PR12136.  Patch from Jeremy Huddleston.

llvm-svn: 152085
---
 compiler-rt/lib/asan/asan_malloc_mac.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/compiler-rt/lib/asan/asan_malloc_mac.cc b/compiler-rt/lib/asan/asan_malloc_mac.cc
index aeacc5f7d2dc..6c93ea25aef7 100644
--- a/compiler-rt/lib/asan/asan_malloc_mac.cc
+++ b/compiler-rt/lib/asan/asan_malloc_mac.cc
@@ -298,10 +298,13 @@ void mi_statistics(malloc_zone_t *zone, malloc_statistics_t *stats) {
 }
 #endif
 
+#if defined(MAC_OS_X_VERSION_10_6) && \
+    MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_6
 boolean_t mi_zone_locked(malloc_zone_t *zone) {
   // UNIMPLEMENTED();
   return false;
 }
+#endif
 
 }  // unnamed namespace