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/subseq.hpp b/ndnboost/preprocessor/seq/subseq.hpp
new file mode 100644
index 0000000..529e0dc
--- /dev/null
+++ b/ndnboost/preprocessor/seq/subseq.hpp
@@ -0,0 +1,28 @@
+# /* **************************************************************************
+# * *
+# * (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_SUBSEQ_HPP
+# define BOOST_PREPROCESSOR_SEQ_SUBSEQ_HPP
+#
+# include <ndnboost/preprocessor/config/config.hpp>
+# include <ndnboost/preprocessor/seq/first_n.hpp>
+# include <ndnboost/preprocessor/seq/rest_n.hpp>
+#
+# /* BOOST_PP_SEQ_SUBSEQ */
+#
+# if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
+# define BOOST_PP_SEQ_SUBSEQ(seq, i, len) BOOST_PP_SEQ_FIRST_N(len, BOOST_PP_SEQ_REST_N(i, seq))
+# else
+# define BOOST_PP_SEQ_SUBSEQ(seq, i, len) BOOST_PP_SEQ_SUBSEQ_I(seq, i, len)
+# define BOOST_PP_SEQ_SUBSEQ_I(seq, i, len) BOOST_PP_SEQ_FIRST_N(len, BOOST_PP_SEQ_REST_N(i, seq))
+# endif
+#
+# endif