diff --git a/ndnboost/preprocessor/facilities/empty.hpp b/ndnboost/preprocessor/facilities/empty.hpp
new file mode 100644
index 0000000..46db190
--- /dev/null
+++ b/ndnboost/preprocessor/facilities/empty.hpp
@@ -0,0 +1,21 @@
+# /* Copyright (C) 2001
+#  * Housemarque Oy
+#  * http://www.housemarque.com
+#  *
+#  * 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)
+#  */
+#
+# /* Revised by Paul Mensonides (2002) */
+#
+# /* See http://www.boost.org for most recent version. */
+#
+# ifndef BOOST_PREPROCESSOR_FACILITIES_EMPTY_HPP
+# define BOOST_PREPROCESSOR_FACILITIES_EMPTY_HPP
+#
+# /* BOOST_PP_EMPTY */
+#
+# define BOOST_PP_EMPTY()
+#
+# endif
diff --git a/ndnboost/preprocessor/facilities/identity.hpp b/ndnboost/preprocessor/facilities/identity.hpp
new file mode 100644
index 0000000..4f48d28
--- /dev/null
+++ b/ndnboost/preprocessor/facilities/identity.hpp
@@ -0,0 +1,23 @@
+# /* Copyright (C) 2001
+#  * Housemarque Oy
+#  * http://www.housemarque.com
+#  *
+#  * 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)
+#  */
+#
+# /* Revised by Paul Mensonides (2002) */
+#
+# /* See http://www.boost.org for most recent version. */
+#
+# ifndef BOOST_PREPROCESSOR_FACILITIES_IDENTITY_HPP
+# define BOOST_PREPROCESSOR_FACILITIES_IDENTITY_HPP
+#
+# include <ndnboost/preprocessor/facilities/empty.hpp>
+#
+# /* BOOST_PP_IDENTITY */
+#
+# define BOOST_PP_IDENTITY(item) item BOOST_PP_EMPTY
+#
+# endif
diff --git a/ndnboost/preprocessor/facilities/overload.hpp b/ndnboost/preprocessor/facilities/overload.hpp
new file mode 100644
index 0000000..2d26d6b
--- /dev/null
+++ b/ndnboost/preprocessor/facilities/overload.hpp
@@ -0,0 +1,25 @@
+# /* **************************************************************************
+#  *                                                                          *
+#  *     (C) Copyright Paul Mensonides 2011.                                  *
+#  *     (C) Copyright Edward Diener 2011.                                    *
+#  *     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_FACILITIES_OVERLOAD_HPP
+# define BOOST_PREPROCESSOR_FACILITIES_OVERLOAD_HPP
+#
+# include <ndnboost/preprocessor/cat.hpp>
+# include <ndnboost/preprocessor/variadic/size.hpp>
+#
+# /* BOOST_PP_OVERLOAD */
+#
+# if BOOST_PP_VARIADICS
+#    define BOOST_PP_OVERLOAD(prefix, ...) BOOST_PP_CAT(prefix, BOOST_PP_VARIADIC_SIZE(__VA_ARGS__))
+# endif
+#
+# endif