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/preprocessor/seq/seq.hpp b/ndnboost/preprocessor/seq/seq.hpp
new file mode 100644
index 0000000..de65672
--- /dev/null
+++ b/ndnboost/preprocessor/seq/seq.hpp
@@ -0,0 +1,44 @@
+# /* **************************************************************************
+# * *
+# * (C) Copyright Paul Mensonides 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 for most recent version. */
+#
+# ifndef BOOST_PREPROCESSOR_SEQ_SEQ_HPP
+# define BOOST_PREPROCESSOR_SEQ_SEQ_HPP
+#
+# include <ndnboost/preprocessor/config/config.hpp>
+# include <ndnboost/preprocessor/seq/elem.hpp>
+#
+# /* BOOST_PP_SEQ_HEAD */
+#
+# define BOOST_PP_SEQ_HEAD(seq) BOOST_PP_SEQ_ELEM(0, seq)
+#
+# /* BOOST_PP_SEQ_TAIL */
+#
+# if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MWCC()
+# define BOOST_PP_SEQ_TAIL(seq) BOOST_PP_SEQ_TAIL_1((seq))
+# define BOOST_PP_SEQ_TAIL_1(par) BOOST_PP_SEQ_TAIL_2 ## par
+# define BOOST_PP_SEQ_TAIL_2(seq) BOOST_PP_SEQ_TAIL_I ## seq
+# elif BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MSVC()
+# define BOOST_PP_SEQ_TAIL(seq) BOOST_PP_SEQ_TAIL_ID(BOOST_PP_SEQ_TAIL_I seq)
+# define BOOST_PP_SEQ_TAIL_ID(id) id
+# elif BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
+# define BOOST_PP_SEQ_TAIL(seq) BOOST_PP_SEQ_TAIL_D(seq)
+# define BOOST_PP_SEQ_TAIL_D(seq) BOOST_PP_SEQ_TAIL_I seq
+# else
+# define BOOST_PP_SEQ_TAIL(seq) BOOST_PP_SEQ_TAIL_I seq
+# endif
+#
+# define BOOST_PP_SEQ_TAIL_I(x)
+#
+# /* BOOST_PP_SEQ_NIL */
+#
+# define BOOST_PP_SEQ_NIL(x) (x)
+#
+# endif