diff --git a/ndnboost/none_t.hpp b/ndnboost/none_t.hpp
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+++ b/ndnboost/none_t.hpp
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+// Copyright (C) 2003, Fernando Luis Cacciola Carballal.
+//
+// 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)
+//
+// See http://www.boost.org/libs/optional for documentation.
+//
+// You are welcome to contact the author at:
+//  fernando_cacciola@hotmail.com
+//
+#ifndef BOOST_NONE_T_17SEP2003_HPP
+#define BOOST_NONE_T_17SEP2003_HPP
+
+namespace ndnboost {
+
+namespace detail { struct none_helper{}; }
+
+typedef int detail::none_helper::*none_t ;
+
+} // namespace ndnboost
+
+#endif
+