Bug 1713 - You can't check the existence of a typedef using the preprocessor. Added a preprocessor check. Also removed an overqualified method name.
// boost/filesystem/exception.hpp -------------------------------------------//
// Copyright Beman Dawes 2003
// 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)
// This header is no long used. The contents have been moved to path.hpp.
// It is provided so that user code #includes do not have to be changed.