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_/iter_apply.hpp b/ndnboost/mpl/aux_/iter_apply.hpp
new file mode 100644
index 0000000..c5a62a5
--- /dev/null
+++ b/ndnboost/mpl/aux_/iter_apply.hpp
@@ -0,0 +1,47 @@
+
+#ifndef BOOST_MPL_ITER_APPLY_HPP_INCLUDED
+#define BOOST_MPL_ITER_APPLY_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2002-2004
+//
+// 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: iter_apply.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/apply.hpp>
+#include <ndnboost/mpl/deref.hpp>
+
+namespace ndnboost { namespace mpl { namespace aux {
+
+template<
+ typename F
+ , typename Iterator
+ >
+struct iter_apply1
+ : apply1< F,typename deref<Iterator>::type >
+{
+};
+
+template<
+ typename F
+ , typename Iterator1
+ , typename Iterator2
+ >
+struct iter_apply2
+ : apply2<
+ F
+ , typename deref<Iterator1>::type
+ , typename deref<Iterator2>::type
+ >
+{
+};
+
+}}}
+
+#endif // BOOST_MPL_ITER_APPLY_HPP_INCLUDED