Commented out export of missing CRML source file to avoid build error.
There are no known side effects of this file being missing, so this seems a reasonable way to avoid the build error.
// Boost.Range library
//
// Copyright Thorsten Ottosen 2003-2004. Use, modification and
// distribution is subject to 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)
//
// For more information, see http://www.boost.org/libs/range/
//
#ifndef BOOST_RANGE_HPP_27_07_04
#define BOOST_RANGE_HPP_27_07_04
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif
#if _MSC_VER == 1300 // experiment
#include <boost/range/detail/collection_traits.hpp>
#include <boost/range/iterator_range.hpp>
#include <boost/range/sub_range.hpp>
#else
#include <boost/range/functions.hpp>
#include <boost/range/metafunctions.hpp>
#include <boost/range/iterator_range.hpp>
#include <boost/range/sub_range.hpp>
#endif // _MSC_VER == 1300 // experiment
#endif