#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//#include <boost/smart_ptr/detail/lightweight_mutex.hpp>#endif // #ifndef BOOST_DETAIL_LIGHTWEIGHT_MUTEX_HPP_INCLUDED