From 8abc8889d11ab46076795aa7d6d34ca8b80e663a Mon Sep 17 00:00:00 2001
From: Peter Dimov <pdimov@pdimov.com>
Date: Wed, 23 Mar 2011 00:13:54 +0000
Subject: [PATCH] Merge [69262] to release. Fixes #5018.

[SVN r70447]
---
 include/boost/smart_ptr/detail/spinlock.hpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/include/boost/smart_ptr/detail/spinlock.hpp b/include/boost/smart_ptr/detail/spinlock.hpp
index 1640a38..88d7ad6 100644
--- a/include/boost/smart_ptr/detail/spinlock.hpp
+++ b/include/boost/smart_ptr/detail/spinlock.hpp
@@ -31,7 +31,10 @@
 #include <boost/config.hpp>
 #include <boost/smart_ptr/detail/sp_has_sync.hpp>
 
-#if defined(__GNUC__) && defined( __arm__ ) && !defined( __thumb__ )
+#if defined( BOOST_SP_USE_PTHREADS )
+#  include <boost/smart_ptr/detail/spinlock_pt.hpp>
+
+#elif defined(__GNUC__) && defined( __arm__ ) && !defined( __thumb__ )
 #  include <boost/smart_ptr/detail/spinlock_gcc_arm.hpp>
 
 #elif defined( BOOST_SP_HAS_SYNC )