diff -r -u boost_1_38_0/boost/thread/pthread/recursive_mutex.hpp boost_1_38_vxworks/boost/thread/pthread/recursive_mutex.hpp
--- boost_1_38_0/boost/thread/pthread/recursive_mutex.hpp	2008-10-13 16:30:14.000000000 -0400
+++ boost_1_38_vxworks/boost/thread/pthread/recursive_mutex.hpp	2009-04-05 01:49:02.875000000 -0400
@@ -5,6 +5,8 @@
 // accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)
 
+#ifdef BOOST_HAS_PTHREAD_MUTEXATTR_SETTYPE
+
 #include <pthread.h>
 #include <boost/utility.hpp>
 #include <boost/thread/exceptions.hpp>
@@ -263,4 +265,6 @@
 
 #include <boost/config/abi_suffix.hpp>
 
+#endif		// BOOST_HAS_PTHREAD_MUTEXATTR_SETTYPE
+
 #endif