From 393325f908f8bd6648e466183f3683a2d80b264e Mon Sep 17 00:00:00 2001
From: Jeremy Huddleston <jeremyhu@freedesktop.org>
Date: Fri, 21 Nov 2008 10:57:31 -0800
Subject: [PATCH] XQuartz: spewCallStack is noop on Tiger now... (cherry picked
 from commit 56c469a68b92c6cf003802f418ea00bd596a41c3)

---
 hw/xquartz/threadSafety.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/hw/xquartz/threadSafety.c b/hw/xquartz/threadSafety.c
index b5a4ecf95..85f85bd0a 100644
--- a/hw/xquartz/threadSafety.c
+++ b/hw/xquartz/threadSafety.c
@@ -31,11 +31,14 @@
 #include "threadSafety.h"
 #include "os.h"
 
-#include <execinfo.h>
-
 pthread_t APPKIT_THREAD_ID;
 pthread_t SERVER_THREAD_ID;
 
+#include <AvailabilityMacros.h>
+
+#if MAC_OS_X_VERSION_MIN_REQUIRED >= 1050
+#include <execinfo.h>
+
 void spewCallStack(void) {
     void* callstack[128];
     int i, frames = backtrace(callstack, 128);
@@ -47,6 +50,11 @@ void spewCallStack(void) {
     
     free(strs);
 }
+#else
+void spewCallStack(void) {
+	return;
+}
+#endif
 
 void _threadSafetyAssert(pthread_t tid, const char *file, const char *fun, int line) {
     if(pthread_equal(pthread_self(), tid))