fixed permissions check for executable files exported on systems where 'ls' reports alternative access characters
# /* Copyright (C) 2001
# * Housemarque Oy
# * http://www.housemarque.com
# *
# * 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)
# */
#
# /* Revised by Paul Mensonides (2002) */
#
# /* See http://www.boost.org for most recent version. */
#
# ifndef BOOST_PREPROCESSOR_ARITHMETIC_HPP
# define BOOST_PREPROCESSOR_ARITHMETIC_HPP
#
# include <boost/preprocessor/arithmetic/add.hpp>
# include <boost/preprocessor/arithmetic/dec.hpp>
# include <boost/preprocessor/arithmetic/div.hpp>
# include <boost/preprocessor/arithmetic/inc.hpp>
# include <boost/preprocessor/arithmetic/mod.hpp>
# include <boost/preprocessor/arithmetic/mul.hpp>
# include <boost/preprocessor/arithmetic/sub.hpp>
#
# endif