Index: boost/thread/pthread/condition_variable_fwd.hpp
===================================================================
--- boost/thread/pthread/condition_variable_fwd.hpp	(revision 43)
+++ boost/thread/pthread/condition_variable_fwd.hpp	(working copy)
@@ -82,13 +82,13 @@
                 boost::throw_exception(thread_resource_error(res, "boost::condition_variable::condition_variable() constructor failed in pthread_mutex_init"));
             }
 #endif
-            res = detail::monotonic_pthread_cond_init(cond);
-            if (res)
+            int res2 = detail::monotonic_pthread_cond_init(cond);
+            if (res2)
             {
 #if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
                 BOOST_VERIFY(!pthread_mutex_destroy(&internal_mutex));
 #endif
-                boost::throw_exception(thread_resource_error(res, "boost::condition_variable::condition_variable() constructor failed in detail::monotonic_pthread_cond_init"));
+                boost::throw_exception(thread_resource_error(res2, "boost::condition_variable::condition_variable() constructor failed in detail::monotonic_pthread_cond_init"));
             }
         }
         ~condition_variable()