--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/msgpack/include/msgpack/v1/versioning.hpp	Thu Nov 24 17:35:14 2016 +0100
@@ -0,0 +1,69 @@
+/*
+ * MessagePack for C++ version switcher
+ *
+ * Copyright (C) 2014 KONDO Takatoshi
+ *
+ *    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 MSGPACK_VERSIONING_HPP
+#define MSGPACK_VERSIONING_HPP
+
+#if !defined(MSGPACK_DEFAULT_API_VERSION)
+#define MSGPACK_DEFAULT_API_VERSION 1
+#endif
+
+#define MSGPACK_DEFAULT_API_NS MSGPACK_DETAIL_PP_CAT(v, MSGPACK_DEFAULT_API_VERSION)
+
+#if   MSGPACK_DEFAULT_API_VERSION == 1
+#define MSGPACK_DETAIL_PP_ENABLE_NS_v1 ()
+//#elif MSGPACK_DEFAULT_API_VERSION == 2
+//#define MSGPACK_DETAIL_PP_ENABLE_NS_v2 ()
+#else
+#error
+#endif
+
+#define MSGPACK_DETAIL_PP_CAT(a, ...) MSGPACK_DETAIL_PP_PRIMITIVE_CAT(a, __VA_ARGS__)
+#define MSGPACK_DETAIL_PP_PRIMITIVE_CAT(a, ...) a ## __VA_ARGS__
+
+#define MSGPACK_DETAIL_PP_IIF(c) MSGPACK_DETAIL_PP_PRIMITIVE_CAT(MSGPACK_DETAIL_PP_IIF_, c)
+#define MSGPACK_DETAIL_PP_IIF_0(t, ...) __VA_ARGS__
+#define MSGPACK_DETAIL_PP_IIF_1(t, ...) t
+
+#define MSGPACK_DETAIL_PP_PROBE(x) x, 1
+
+#if defined(_MSC_VER)
+
+#define MSGPACK_DETAIL_PP_MSVC_VA_ARGS_WORKAROUND(define, args) define args
+#define MSGPACK_DETAIL_PP_CHECK(...) MSGPACK_DETAIL_PP_MSVC_VA_ARGS_WORKAROUND(MSGPACK_DETAIL_PP_CHECK_N, (__VA_ARGS__, 0))
+#define MSGPACK_DETAIL_PP_CHECK_N(x, n, ...) n
+
+#else  // defined(__MSC_VER)
+
+#define MSGPACK_DETAIL_PP_CHECK(...) MSGPACK_DETAIL_PP_CHECK_N(__VA_ARGS__, 0)
+#define MSGPACK_DETAIL_PP_CHECK_N(x, n, ...) n
+
+#endif // defined(__MSC_VER)
+
+
+#define MSGPACK_DETAIL_PP_NS_ENABLED_PROBE(ns)            MSGPACK_DETAIL_PP_NS_ENABLED_PROBE_PROXY( MSGPACK_DETAIL_PP_ENABLE_NS_##ns )
+#define MSGPACK_DETAIL_PP_NS_ENABLED_PROBE_PROXY(...)     MSGPACK_DETAIL_PP_NS_ENABLED_PROBE_PRIMIVIE(__VA_ARGS__)
+#define MSGPACK_DETAIL_PP_NS_ENABLED_PROBE_PRIMIVIE(x)    MSGPACK_DETAIL_PP_NS_ENABLED_PROBE_COMBINE_ x
+#define MSGPACK_DETAIL_PP_NS_ENABLED_PROBE_COMBINE_(...)  MSGPACK_DETAIL_PP_PROBE(~)
+
+#define MSGPACK_DETAIL_PP_IS_NS_ENABLED(ns) MSGPACK_DETAIL_PP_CHECK(MSGPACK_DETAIL_PP_NS_ENABLED_PROBE(ns))
+
+#if __cplusplus < 201103L
+#define MSGPACK_API_VERSION_NAMESPACE(ns) MSGPACK_DETAIL_PP_IIF(MSGPACK_DETAIL_PP_IS_NS_ENABLED(ns)) \
+    (namespace ns{}; using namespace ns; namespace ns, \
+     namespace ns)
+
+#else  // __cplusplus < 201103L
+
+#define MSGPACK_API_VERSION_NAMESPACE(ns) MSGPACK_DETAIL_PP_IIF(MSGPACK_DETAIL_PP_IS_NS_ENABLED(ns)) \
+    (inline namespace ns, namespace ns)
+
+#endif // __cplusplus < 201103L
+
+#endif // MSGPACK_VERSIONING_HPP