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/function_types/detail/encoding/def.hpp b/ndnboost/function_types/detail/encoding/def.hpp
new file mode 100644
index 0000000..08074fb
--- /dev/null
+++ b/ndnboost/function_types/detail/encoding/def.hpp
@@ -0,0 +1,51 @@
+
+// (C) Copyright Tobias Schwinger
+//
+// Use modification and distribution are subject to the boost Software License,
+// Version 1.0. (See http://www.boost.org/LICENSE_1_0.txt).
+
+//------------------------------------------------------------------------------
+
+// no include guards, this file is intended for multiple inclusions
+
+// Type encoding:
+//
+// bit 0: callable builtin
+// bit 1: non member
+// bit 2: naked function
+// bit 3: pointer
+// bit 4: reference
+// bit 5: member pointer
+// bit 6: member function pointer
+// bit 7: member object pointer
+
+#define BOOST_FT_type_mask 0x000000ff // 1111 1111
+#define BOOST_FT_callable_builtin 0x00000001 // 0000 0001
+#define BOOST_FT_non_member 0x00000002 // 0000 0010
+#define BOOST_FT_function 0x00000007 // 0000 0111
+#define BOOST_FT_pointer 0x0000000b // 0000 1011
+#define BOOST_FT_reference 0x00000013 // 0001 0011
+#define BOOST_FT_non_member_callable_builtin 0x00000003 // 0000 0011
+#define BOOST_FT_member_pointer 0x00000020 // 0010 0000
+#define BOOST_FT_member_function_pointer 0x00000061 // 0110 0001
+#define BOOST_FT_member_object_pointer 0x000000a3 // 1010 0001
+#define BOOST_FT_member_object_pointer_flags 0x000002a3
+
+#define BOOST_FT_variadic 0x00000100
+#define BOOST_FT_non_variadic 0x00000200
+#define BOOST_FT_variadic_mask 0x00000300
+
+#define BOOST_FT_const 0x00000400
+#define BOOST_FT_volatile 0x00000800
+
+#define BOOST_FT_default_cc 0x00008000
+#define BOOST_FT_cc_mask 0x00ff8000
+
+#define BOOST_FT_kind_mask 0x000000fc
+
+#define BOOST_FT_flags_mask 0x00000fff
+#define BOOST_FT_full_mask 0x00ff0fff
+
+#define BOOST_FT_arity_shift 24
+#define BOOST_FT_arity_mask 0x7f000000
+