diff --git a/boost/mpl/aux_/yes_no.hpp b/boost/mpl/aux_/yes_no.hpp
new file mode 100644
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--- /dev/null
+++ b/boost/mpl/aux_/yes_no.hpp
@@ -0,0 +1,58 @@
+
+#ifndef BOOST_MPL_AUX_YES_NO_HPP_INCLUDED
+#define BOOST_MPL_AUX_YES_NO_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id: yes_no.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
+// $Date: 2008-10-10 23:19:02 -0700 (Fri, 10 Oct 2008) $
+// $Revision: 49267 $
+
+#include <boost/mpl/aux_/nttp_decl.hpp>
+#include <boost/mpl/aux_/config/arrays.hpp>
+#include <boost/mpl/aux_/config/msvc.hpp>
+#include <boost/mpl/aux_/config/workaround.hpp>
+
+
+namespace ndnboost { namespace mpl { namespace aux {
+
+typedef char (&no_tag)[1];
+typedef char (&yes_tag)[2];
+
+template< bool C_ > struct yes_no_tag
+{
+    typedef no_tag type;
+};
+
+template<> struct yes_no_tag<true>
+{
+    typedef yes_tag type;
+};
+
+
+template< BOOST_MPL_AUX_NTTP_DECL(long, n) > struct weighted_tag
+{
+#if !BOOST_WORKAROUND(BOOST_MSVC, < 1300)
+    typedef char (&type)[n];
+#else
+    char buf[n];
+    typedef weighted_tag type;
+#endif
+};
+
+#if defined(BOOST_MPL_CFG_NO_DEPENDENT_ARRAY_TYPES)
+template<> struct weighted_tag<0>
+{
+    typedef char (&type)[1];
+};
+#endif
+
+}}}
+
+#endif // BOOST_MPL_AUX_YES_NO_HPP_INCLUDED