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/mpl/aux_/preprocessed/plain/apply_fwd.hpp b/ndnboost/mpl/aux_/preprocessed/plain/apply_fwd.hpp
new file mode 100644
index 0000000..bccc94e
--- /dev/null
+++ b/ndnboost/mpl/aux_/preprocessed/plain/apply_fwd.hpp
@@ -0,0 +1,52 @@
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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)
+//
+
+// Preprocessed version of "ndnboost/mpl/apply_fwd.hpp" header
+// -- DO NOT modify by hand!
+
+namespace ndnboost { namespace mpl {
+
+template<
+ typename F, typename T1 = na, typename T2 = na, typename T3 = na
+ , typename T4 = na, typename T5 = na
+ >
+struct apply;
+
+template<
+ typename F
+ >
+struct apply0;
+
+template<
+ typename F, typename T1
+ >
+struct apply1;
+
+template<
+ typename F, typename T1, typename T2
+ >
+struct apply2;
+
+template<
+ typename F, typename T1, typename T2, typename T3
+ >
+struct apply3;
+
+template<
+ typename F, typename T1, typename T2, typename T3, typename T4
+ >
+struct apply4;
+
+template<
+ typename F, typename T1, typename T2, typename T3, typename T4
+ , typename T5
+ >
+struct apply5;
+
+}}
+