remove unused INTERBASE variable. Use TARGET_lower where it's clearer.
// Boost utility.hpp header file -------------------------------------------//
// Copyright 1999-2003 Aleksey Gurtovoy. Use, modification, and distribution are
// subject to the Boost Software License, Version 1.0. (See accompanying file
// LICENSE_1_0.txt or a copy at <http://www.boost.org/LICENSE_1_0.txt>.)
// See <http://www.boost.org/libs/utility/> for the library's home page.
#ifndef BOOST_UTILITY_HPP
#define BOOST_UTILITY_HPP
#include <boost/utility/addressof.hpp>
#include <boost/utility/base_from_member.hpp>
#include <boost/utility/binary.hpp>
#include <boost/utility/enable_if.hpp>
#include <boost/checked_delete.hpp>
#include <boost/next_prior.hpp>
#include <boost/noncopyable.hpp>
#endif // BOOST_UTILITY_HPP