diff -ruN boost_1_46_1.log3/boost/thread/pthread/mutex.hpp boost_1_46_1.log/boost/thread/pthread/mutex.hpp
--- boost_1_46_1.log3/boost/thread/pthread/mutex.hpp	2011-07-27 17:32:00.972542300 -0700
+++ boost_1_46_1.log/boost/thread/pthread/mutex.hpp	2011-07-27 17:33:38.365687735 -0700
@@ -36,7 +36,14 @@
     public:
         mutex()
         {
-            int const res=pthread_mutex_init(&m,NULL);
+            pthread_mutexattr_t mutex_attr;
+            pthread_mutexattr_init(&mutex_attr);
+            pthread_mutexattr_setprotocol(&mutex_attr, PTHREAD_PRIO_INHERIT);
+
+            int const res=pthread_mutex_init(&m, &mutex_attr);
+
+            pthread_mutexattr_destroy(&mutex_attr);
+
             if(res)
             {
                 boost::throw_exception(thread_resource_error());