In common.h, define func_lib for function objects. In configure.ac, define HAVE_STD_FUNCTION and HAVE_BOOST_FUNCTION. Include function headers in ndnboost.
diff --git a/ndnboost/mpl/aux_/largest_int.hpp b/ndnboost/mpl/aux_/largest_int.hpp
new file mode 100644
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+++ b/ndnboost/mpl/aux_/largest_int.hpp
@@ -0,0 +1,63 @@
+
+#ifndef BOOST_MPL_AUX_LARGEST_INT_HPP_INCLUDED
+#define BOOST_MPL_AUX_LARGEST_INT_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: largest_int.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
+// $Date: 2008-10-10 23:19:02 -0700 (Fri, 10 Oct 2008) $
+// $Revision: 49267 $
+
+#include <ndnboost/mpl/if.hpp>
+#include <ndnboost/mpl/int.hpp>
+#include <ndnboost/mpl/aux_/config/integral.hpp>
+#include <ndnboost/config.hpp>
+
+namespace ndnboost { namespace mpl { namespace aux {
+
+template< typename T > struct integral_rank;
+
+template<> struct integral_rank<bool> : int_<1> {};
+template<> struct integral_rank<signed char> : int_<2> {};
+template<> struct integral_rank<char> : int_<3> {};
+template<> struct integral_rank<unsigned char> : int_<4> {};
+#if !defined(BOOST_NO_INTRINSIC_WCHAR_T)
+template<> struct integral_rank<wchar_t> : int_<5> {};
+#endif
+template<> struct integral_rank<short> : int_<6> {};
+template<> struct integral_rank<unsigned short> : int_<7> {};
+template<> struct integral_rank<int> : int_<8> {};
+template<> struct integral_rank<unsigned int> : int_<9> {};
+template<> struct integral_rank<long> : int_<10> {};
+template<> struct integral_rank<unsigned long> : int_<11> {};
+
+#if defined(BOOST_HAS_LONG_LONG)
+template<> struct integral_rank<long_long_type> : int_<12> {};
+template<> struct integral_rank<ulong_long_type>: int_<13> {};
+#endif
+
+template< typename T1, typename T2 > struct largest_int
+#if !defined(BOOST_MPL_CFG_NO_NESTED_VALUE_ARITHMETIC)
+ : if_c<
+ ( integral_rank<T1>::value >= integral_rank<T2>::value )
+ , T1
+ , T2
+ >
+{
+#else
+{
+ enum { rank1 = integral_rank<T1>::value };
+ enum { rank2 = integral_rank<T2>::value };
+ typedef typename if_c< (rank1 >= rank2),T1,T2 >::type type;
+#endif
+};
+
+}}}
+
+#endif // BOOST_MPL_AUX_LARGEST_INT_HPP_INCLUDED