diff --git a/ndnboost/functional/overloaded_function/config.hpp b/ndnboost/functional/overloaded_function/config.hpp
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+
+// Copyright (C) 2009-2012 Lorenzo Caminiti
+// Distributed under the Boost Software License, Version 1.0
+// (see accompanying file LICENSE_1_0.txt or a copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+// Home at http://www.boost.org/libs/functional/overloaded_function
+
+#ifndef BOOST_FUNCTIONAL_OVERLOADED_FUNCTION_CONFIG_HPP_
+#define BOOST_FUNCTIONAL_OVERLOADED_FUNCTION_CONFIG_HPP_
+
+/** @file
+@brief Change the compile-time configuration of this library.
+*/
+
+/**
+@brief Specify the maximum number of arguments of the functions being
+overloaded.
+
+If this macro is left undefined by the user, it has a default value of 5
+(increasing this number might increase compilation time).
+When specified by the user, this macro must be a non-negative integer number.
+
+@See @RefSect{getting_started, Getting Started},
+@RefClass{ndnboost::overloaded_function}.
+*/
+#ifndef BOOST_FUNCTIONAL_OVERLOADED_FUNCTION_CONFIG_ARITY_MAX 
+#   define BOOST_FUNCTIONAL_OVERLOADED_FUNCTION_CONFIG_ARITY_MAX 5
+#endif
+
+/**
+@brief Specify the maximum number of functions that can be overloaded.
+
+If this macro is left undefined by the user, it has a default value of 5
+(increasing this number might increase compilation time).
+When defined by the user, this macro must be an integer number greater or
+equal than 2 (because at least two distinct functions need to be specified in
+order to define an overload).
+
+@See @RefSect{getting_started, Getting Started},
+@RefClass{ndnboost::overloaded_function}.
+*/
+#ifndef BOOST_FUNCTIONAL_OVERLOADED_FUNCTION_CONFIG_OVERLOAD_MAX
+#   define BOOST_FUNCTIONAL_OVERLOADED_FUNCTION_CONFIG_OVERLOAD_MAX 5
+#endif
+#if BOOST_FUNCTIONAL_OVERLOADED_FUNCTION_CONFIG_OVERLOAD_MAX < 2
+#   error "maximum overload macro cannot be less than 2"
+#endif
+
+#endif // #include guard
+