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/reverse_fold.hpp b/ndnboost/mpl/reverse_fold.hpp
new file mode 100644
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--- /dev/null
+++ b/ndnboost/mpl/reverse_fold.hpp
@@ -0,0 +1,50 @@
+
+#ifndef BOOST_MPL_REVERSE_FOLD_HPP_INCLUDED
+#define BOOST_MPL_REVERSE_FOLD_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2001-2004
+// Copyright David Abrahams 2001-2002
+//
+// 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: reverse_fold.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/begin_end.hpp>
+#include <ndnboost/mpl/O1_size.hpp>
+#include <ndnboost/mpl/arg.hpp>
+#include <ndnboost/mpl/aux_/reverse_fold_impl.hpp>
+#include <ndnboost/mpl/aux_/na_spec.hpp>
+
+namespace ndnboost { namespace mpl {
+
+template<
+ typename BOOST_MPL_AUX_NA_PARAM(Sequence)
+ , typename BOOST_MPL_AUX_NA_PARAM(State)
+ , typename BOOST_MPL_AUX_NA_PARAM(BackwardOp)
+ , typename ForwardOp = arg<1>
+ >
+struct reverse_fold
+{
+ typedef typename aux::reverse_fold_impl<
+ ::ndnboost::mpl::O1_size<Sequence>::value
+ , typename begin<Sequence>::type
+ , typename end<Sequence>::type
+ , State
+ , BackwardOp
+ , ForwardOp
+ >::state type;
+
+ BOOST_MPL_AUX_LAMBDA_SUPPORT(3,reverse_fold,(Sequence,State,BackwardOp))
+};
+
+BOOST_MPL_AUX_NA_SPEC(3, reverse_fold)
+
+}}
+
+#endif // BOOST_MPL_REVERSE_FOLD_HPP_INCLUDED