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diff --git a/boost/log/detail/parameter_tools.hpp b/boost/log/detail/parameter_tools.hpp
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+/*
+ *          Copyright Andrey Semashev 2007 - 2014.
+ * 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)
+ */
+/*!
+ * \file   parameter_tools.hpp
+ * \author Andrey Semashev
+ * \date   28.06.2009
+ *
+ * \brief  This header is the Boost.Log library implementation, see the library documentation
+ *         at http://www.boost.org/doc/libs/release/libs/log/doc/html/index.html.
+ */
+
+#ifndef BOOST_LOG_DETAIL_PARAMETER_TOOLS_HPP_INCLUDED_
+#define BOOST_LOG_DETAIL_PARAMETER_TOOLS_HPP_INCLUDED_
+
+#include <boost/parameter/keyword.hpp>
+#include <boost/preprocessor/repetition/enum_params.hpp>
+#include <boost/preprocessor/repetition/enum_binary_params.hpp>
+#include <boost/preprocessor/repetition/repeat_from_to.hpp>
+#include <boost/preprocessor/facilities/intercept.hpp>
+#include <boost/preprocessor/arithmetic/dec.hpp>
+#include <boost/preprocessor/tuple/elem.hpp>
+#include <boost/log/detail/config.hpp>
+#include <boost/log/detail/header.hpp>
+
+#ifdef BOOST_HAS_PRAGMA_ONCE
+#pragma once
+#endif
+
+#ifndef BOOST_LOG_MAX_PARAMETER_ARGS
+//! The maximum number of named arguments that are accepted by constructors and functions
+#define BOOST_LOG_MAX_PARAMETER_ARGS 16
+#endif
+
+// The macro applies the passed macro with the specified arguments BOOST_LOG_MAX_PARAMETER_ARGS times
+#define BOOST_LOG_PARAMETRIZED_CONSTRUCTORS_GEN(macro, args)\
+    public:\
+        BOOST_PP_REPEAT_FROM_TO(1, BOOST_LOG_MAX_PARAMETER_ARGS, macro, args)
+
+
+#define BOOST_LOG_CTOR_FORWARD(z, n, types)\
+    template< BOOST_PP_ENUM_PARAMS(n, typename T) >\
+    explicit BOOST_PP_TUPLE_ELEM(2, 0, types)(BOOST_PP_ENUM_BINARY_PARAMS(n, T, const& arg)) :\
+        BOOST_PP_TUPLE_ELEM(2, 1, types)((BOOST_PP_ENUM_PARAMS(n, arg))) {}
+
+// The macro expands to a number of templated constructors that aggregate their named arguments
+// into an ArgumentsPack and pass it to the base class constructor.
+#define BOOST_LOG_PARAMETRIZED_CONSTRUCTORS_FORWARD(class_type, base_type)\
+    BOOST_LOG_PARAMETRIZED_CONSTRUCTORS_GEN(BOOST_LOG_CTOR_FORWARD, (class_type, base_type))
+
+
+#define BOOST_LOG_CTOR_CALL(z, n, types)\
+    template< BOOST_PP_ENUM_PARAMS(n, typename T) >\
+    explicit BOOST_PP_TUPLE_ELEM(2, 0, types)(BOOST_PP_ENUM_BINARY_PARAMS(n, T, const& arg))\
+    { BOOST_PP_TUPLE_ELEM(2, 1, types)((BOOST_PP_ENUM_PARAMS(n, arg))); }
+
+// The macro expands to a number of templated constructors that aggregate their named arguments
+// into an ArgumentsPack and pass it to a function call.
+#define BOOST_LOG_PARAMETRIZED_CONSTRUCTORS_CALL(class_type, fun)\
+    BOOST_LOG_PARAMETRIZED_CONSTRUCTORS_GEN(BOOST_LOG_CTOR_CALL, (class_type, fun))
+
+namespace boost {
+
+BOOST_LOG_OPEN_NAMESPACE
+
+namespace aux {
+
+// Yeah, not too cute. The empty_arg_list class should really be public.
+typedef boost::parameter::aux::empty_arg_list empty_arg_list;
+
+#if !(defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_LOG_NO_CXX11_ARG_PACKS_TO_NON_VARIADIC_ARGS_EXPANSION))
+
+//! The metafunction generates argument pack
+template< typename ArgT0, typename... ArgsT >
+struct make_arg_list
+{
+    typedef boost::parameter::aux::arg_list< ArgT0, typename make_arg_list< ArgsT... >::type > type;
+};
+
+template< typename ArgT0 >
+struct make_arg_list< ArgT0 >
+{
+    typedef boost::parameter::aux::arg_list< ArgT0 > type;
+};
+
+#else
+
+//! The metafunction generates argument pack
+template< typename ArgT0, BOOST_PP_ENUM_BINARY_PARAMS(BOOST_PP_DEC(BOOST_LOG_MAX_PARAMETER_ARGS), typename T, = void BOOST_PP_INTERCEPT) >
+struct make_arg_list
+{
+    typedef boost::parameter::aux::arg_list< ArgT0, typename make_arg_list< BOOST_PP_ENUM_PARAMS(BOOST_PP_DEC(BOOST_LOG_MAX_PARAMETER_ARGS), T) >::type > type;
+};
+
+template< typename ArgT0 >
+struct make_arg_list< ArgT0, BOOST_PP_ENUM_PARAMS(BOOST_PP_DEC(BOOST_LOG_MAX_PARAMETER_ARGS), void BOOST_PP_INTERCEPT) >
+{
+    typedef boost::parameter::aux::arg_list< ArgT0 > type;
+};
+
+#endif
+
+} // namespace aux
+
+BOOST_LOG_CLOSE_NAMESPACE // namespace log
+
+} // namespace boost
+
+#include <boost/log/detail/footer.hpp>
+
+#endif // BOOST_LOG_DETAIL_PARAMETER_TOOLS_HPP_INCLUDED_