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diff --git a/boost/parameter/aux_/pp_impl/argument_pack.hpp b/boost/parameter/aux_/pp_impl/argument_pack.hpp
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+++ b/boost/parameter/aux_/pp_impl/argument_pack.hpp
@@ -0,0 +1,91 @@
+// Copyright Daniel Wallin 2006.
+// Copyright Cromwell D. Enage 2017.
+// 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)
+
+#ifndef BOOST_PARAMETER_AUX_PP_IMPL_ARGUMENT_PACK_HPP
+#define BOOST_PARAMETER_AUX_PP_IMPL_ARGUMENT_PACK_HPP
+
+#include <boost/parameter/aux_/pack/tag_keyword_arg.hpp>
+#include <boost/parameter/aux_/pack/make_arg_list.hpp>
+#include <boost/parameter/config.hpp>
+
+#if defined(BOOST_PARAMETER_HAS_PERFECT_FORWARDING)
+#include <boost/parameter/aux_/pack/make_parameter_spec_items.hpp>
+
+#if defined(BOOST_PARAMETER_CAN_USE_MP11)
+#include <boost/mp11/integral.hpp>
+#include <boost/mp11/list.hpp>
+#else
+#include <boost/mpl/bool.hpp>
+#include <boost/mpl/pair.hpp>
+#endif
+
+namespace boost { namespace parameter { namespace aux {
+
+    template <typename Parameters, typename ...Args>
+    struct argument_pack
+    {
+        typedef typename ::boost::parameter::aux::make_arg_list<
+            typename ::boost::parameter::aux::make_parameter_spec_items<
+                typename Parameters::parameter_spec
+              , Args...
+            >::type
+          , typename Parameters::deduced_list
+          , ::boost::parameter::aux::tag_keyword_arg
+#if defined(BOOST_PARAMETER_CAN_USE_MP11)
+          , ::boost::mp11::mp_false
+#else
+          , ::boost::mpl::false_
+#endif
+        >::type result;
+#if defined(BOOST_PARAMETER_CAN_USE_MP11)
+        using type = ::boost::mp11::mp_at_c<result,0>;
+#else
+        typedef typename ::boost::mpl::first<result>::type type;
+#endif
+    };
+}}} // namespace boost::parameter::aux
+
+#else   // !defined(BOOST_PARAMETER_HAS_PERFECT_FORWARDING)
+#include <boost/parameter/aux_/void.hpp>
+#include <boost/parameter/aux_/pack/make_items.hpp>
+#include <boost/parameter/aux_/preprocessor/no_perfect_forwarding_begin.hpp>
+#include <boost/preprocessor/facilities/intercept.hpp>
+#include <boost/preprocessor/repetition/enum_trailing_binary_params.hpp>
+#include <boost/mpl/bool.hpp>
+#include <boost/mpl/pair.hpp>
+
+namespace boost { namespace parameter { namespace aux {
+
+    template <
+        typename Parameters
+        BOOST_PP_ENUM_TRAILING_BINARY_PARAMS(
+            BOOST_PARAMETER_MAX_ARITY
+          , typename A
+          , = ::boost::parameter::void_ BOOST_PP_INTERCEPT
+        )
+    >
+    struct argument_pack
+    {
+        typedef typename ::boost::parameter::aux::make_arg_list<
+            typename BOOST_PARAMETER_build_arg_list(
+                BOOST_PARAMETER_MAX_ARITY
+              , ::boost::parameter::aux::make_items
+              , typename Parameters::parameter_spec
+              , A
+            )::type
+          , typename Parameters::deduced_list
+          , ::boost::parameter::aux::tag_keyword_arg
+          , ::boost::mpl::false_
+        >::type result;
+        typedef typename ::boost::mpl::first<result>::type type;
+    };
+}}} // namespace boost::parameter::aux
+
+#include <boost/parameter/aux_/preprocessor/no_perfect_forwarding_end.hpp>
+
+#endif  // BOOST_PARAMETER_HAS_PERFECT_FORWARDING
+#endif  // include guard
+