diff -r 666f914201fb -r 2fe1408b6811 epoc32/include/stdapis/boost/detail/lightweight_mutex.hpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/epoc32/include/stdapis/boost/detail/lightweight_mutex.hpp	Tue Mar 16 16:12:26 2010 +0000
@@ -0,0 +1,42 @@
+#ifndef BOOST_DETAIL_LIGHTWEIGHT_MUTEX_HPP_INCLUDED
+#define BOOST_DETAIL_LIGHTWEIGHT_MUTEX_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+//  boost/detail/lightweight_mutex.hpp - lightweight mutex
+//
+//  Copyright (c) 2002, 2003 Peter Dimov and Multi Media Ltd.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+//  typedef <unspecified> boost::detail::lightweight_mutex;
+//
+//  boost::detail::lightweight_mutex is a header-only implementation of
+//  a subset of the Mutex concept requirements:
+//
+//  http://www.boost.org/doc/html/threads/concepts.html#threads.concepts.Mutex
+//
+//  It maps to a CRITICAL_SECTION on Windows or a pthread_mutex on POSIX.
+//
+
+#include <boost/config.hpp>
+
+#if !defined(BOOST_HAS_THREADS)
+# include <boost/detail/lwm_nop.hpp>
+#elif defined(WIN32) || defined(_WIN32) || defined(__WIN32__)
+#  include <boost/detail/lwm_win32_cs.hpp>
+#elif defined(BOOST_HAS_PTHREADS)
+#  include <boost/detail/lwm_pthreads.hpp>
+#else
+// Use #define BOOST_DISABLE_THREADS to avoid the error
+#  error Unrecognized threading platform
+#endif
+
+#endif // #ifndef BOOST_DETAIL_LIGHTWEIGHT_MUTEX_HPP_INCLUDED