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/iterator/detail/config_undef.hpp b/ndnboost/iterator/detail/config_undef.hpp
new file mode 100644
index 0000000..9dcd1d5
--- /dev/null
+++ b/ndnboost/iterator/detail/config_undef.hpp
@@ -0,0 +1,25 @@
+// (C) Copyright Thomas Witt 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)
+
+// no include guard multiple inclusion intended
+
+//
+// This is a temporary workaround until the bulk of this is
+// available in boost config.
+// 23/02/03 thw
+//
+
+#undef BOOST_NO_IS_CONVERTIBLE
+#undef BOOST_NO_IS_CONVERTIBLE_TEMPLATE
+#undef BOOST_NO_STRICT_ITERATOR_INTEROPERABILITY
+#undef BOOST_ARG_DEPENDENT_TYPENAME
+#undef BOOST_NO_LVALUE_RETURN_DETECTION
+#undef BOOST_NO_ONE_WAY_ITERATOR_INTEROP
+
+#ifdef BOOST_ITERATOR_CONFIG_DEF
+# undef BOOST_ITERATOR_CONFIG_DEF
+#else
+# error missing or nested #include config_def
+#endif