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/type_traits/has_greater.hpp b/ndnboost/type_traits/has_greater.hpp
new file mode 100644
index 0000000..dc8889a
--- /dev/null
+++ b/ndnboost/type_traits/has_greater.hpp
@@ -0,0 +1,49 @@
+// (C) Copyright 2009-2011 Frederic Bron.
+//
+// Use, modification and distribution are subject to 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/type_traits for most recent version including documentation.
+
+#ifndef BOOST_TT_HAS_GREATER_HPP_INCLUDED
+#define BOOST_TT_HAS_GREATER_HPP_INCLUDED
+
+#define BOOST_TT_TRAIT_NAME has_greater
+#define BOOST_TT_TRAIT_OP >
+#define BOOST_TT_FORBIDDEN_IF\
+ ::ndnboost::type_traits::ice_or<\
+ /* Lhs==pointer and Rhs==fundamental */\
+ ::ndnboost::type_traits::ice_and<\
+ ::ndnboost::is_pointer< Lhs_noref >::value,\
+ ::ndnboost::is_fundamental< Rhs_nocv >::value\
+ >::value,\
+ /* Rhs==pointer and Lhs==fundamental */\
+ ::ndnboost::type_traits::ice_and<\
+ ::ndnboost::is_pointer< Rhs_noref >::value,\
+ ::ndnboost::is_fundamental< Lhs_nocv >::value\
+ >::value,\
+ /* Lhs==pointer and Rhs==pointer and Lhs!=base(Rhs) and Rhs!=base(Lhs) and Lhs!=void* and Rhs!=void* */\
+ ::ndnboost::type_traits::ice_and<\
+ ::ndnboost::is_pointer< Lhs_noref >::value,\
+ ::ndnboost::is_pointer< Rhs_noref >::value,\
+ ::ndnboost::type_traits::ice_not<\
+ ::ndnboost::type_traits::ice_or<\
+ ::ndnboost::is_base_of< Lhs_noptr, Rhs_noptr >::value,\
+ ::ndnboost::is_base_of< Rhs_noptr, Lhs_noptr >::value,\
+ ::ndnboost::is_same< Lhs_noptr, Rhs_noptr >::value,\
+ ::ndnboost::is_void< Lhs_noptr >::value,\
+ ::ndnboost::is_void< Rhs_noptr >::value\
+ >::value\
+ >::value\
+ >::value\
+ >::value
+
+
+#include <ndnboost/type_traits/detail/has_binary_operator.hpp>
+
+#undef BOOST_TT_TRAIT_NAME
+#undef BOOST_TT_TRAIT_OP
+#undef BOOST_TT_FORBIDDEN_IF
+
+#endif