diff --git a/boost/mpl/lambda_fwd.hpp b/boost/mpl/lambda_fwd.hpp
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+
+#ifndef BOOST_MPL_LAMBDA_FWD_HPP_INCLUDED
+#define BOOST_MPL_LAMBDA_FWD_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2001-2004
+//
+// 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: lambda_fwd.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/void_fwd.hpp>
+#include <boost/mpl/aux_/na.hpp>
+#include <boost/mpl/aux_/config/lambda.hpp>
+
+#if !defined(BOOST_MPL_CFG_NO_FULL_LAMBDA_SUPPORT)
+
+#   include <boost/mpl/int.hpp>
+#   include <boost/mpl/aux_/lambda_arity_param.hpp>
+#   include <boost/mpl/aux_/template_arity_fwd.hpp>
+
+namespace ndnboost { namespace mpl {
+
+template< 
+      typename T = na
+    , typename Tag = void_
+    BOOST_MPL_AUX_LAMBDA_ARITY_PARAM(
+          typename Arity = int_< aux::template_arity<T>::value >
+        )
+    >
+struct lambda;
+
+}}
+
+#else // BOOST_MPL_CFG_NO_FULL_LAMBDA_SUPPORT
+
+#   include <boost/mpl/bool.hpp>
+
+namespace ndnboost { namespace mpl {
+
+template< 
+      typename T = na
+    , typename Tag = void_
+    , typename Protect = true_
+    > 
+struct lambda;
+
+}}
+
+#endif
+
+#endif // BOOST_MPL_LAMBDA_FWD_HPP_INCLUDED