Rename the extracted boost subdirectory to ndnboost
diff --git a/ndnboost/preprocessor/detail/check.hpp b/ndnboost/preprocessor/detail/check.hpp
new file mode 100644
index 0000000..3a908d4
--- /dev/null
+++ b/ndnboost/preprocessor/detail/check.hpp
@@ -0,0 +1,48 @@
+# /* **************************************************************************
+# * *
+# * (C) Copyright Paul Mensonides 2002.
+# * 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)
+# * *
+# ************************************************************************** */
+#
+# /* See http://www.boost.org for most recent version. */
+#
+# ifndef BOOST_PREPROCESSOR_DETAIL_CHECK_HPP
+# define BOOST_PREPROCESSOR_DETAIL_CHECK_HPP
+#
+# include <ndnboost/preprocessor/cat.hpp>
+# include <ndnboost/preprocessor/config/config.hpp>
+#
+# /* BOOST_PP_CHECK */
+#
+# if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MWCC()
+# define BOOST_PP_CHECK(x, type) BOOST_PP_CHECK_D(x, type)
+# else
+# define BOOST_PP_CHECK(x, type) BOOST_PP_CHECK_OO((x, type))
+# define BOOST_PP_CHECK_OO(par) BOOST_PP_CHECK_D ## par
+# endif
+#
+# if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MSVC() && ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_DMC()
+# define BOOST_PP_CHECK_D(x, type) BOOST_PP_CHECK_1(BOOST_PP_CAT(BOOST_PP_CHECK_RESULT_, type x))
+# define BOOST_PP_CHECK_1(chk) BOOST_PP_CHECK_2(chk)
+# define BOOST_PP_CHECK_2(res, _) res
+# elif BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MSVC()
+# define BOOST_PP_CHECK_D(x, type) BOOST_PP_CHECK_1(type x)
+# define BOOST_PP_CHECK_1(chk) BOOST_PP_CHECK_2(chk)
+# define BOOST_PP_CHECK_2(chk) BOOST_PP_CHECK_3((BOOST_PP_CHECK_RESULT_ ## chk))
+# define BOOST_PP_CHECK_3(im) BOOST_PP_CHECK_5(BOOST_PP_CHECK_4 im)
+# define BOOST_PP_CHECK_4(res, _) res
+# define BOOST_PP_CHECK_5(res) res
+# else /* DMC */
+# define BOOST_PP_CHECK_D(x, type) BOOST_PP_CHECK_OO((type x))
+# define BOOST_PP_CHECK_OO(par) BOOST_PP_CHECK_0 ## par
+# define BOOST_PP_CHECK_0(chk) BOOST_PP_CHECK_1(BOOST_PP_CAT(BOOST_PP_CHECK_RESULT_, chk))
+# define BOOST_PP_CHECK_1(chk) BOOST_PP_CHECK_2(chk)
+# define BOOST_PP_CHECK_2(res, _) res
+# endif
+#
+# define BOOST_PP_CHECK_RESULT_1 1, BOOST_PP_NIL
+#
+# endif