This product bundles Boost Predef and Boost Preprocessor.
They are 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)

For details, see the following files:

external/boost/predef
include/msgpack/predef.h
include/msgpack/predef/*

external/boost/preprocessor
include/msgpack/preprocessor.hpp
include/msgpack/preprocessor/*