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diff --git a/ext/boost/mpl/aux_/order_impl.hpp b/ext/boost/mpl/aux_/order_impl.hpp
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+++ b/ext/boost/mpl/aux_/order_impl.hpp
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+
+#ifndef BOOST_MPL_AUX_ORDER_IMPL_HPP_INCLUDED
+#define BOOST_MPL_AUX_ORDER_IMPL_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2003-2004
+// Copyright David Abrahams 2003-2004
+//
+// 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)
+//
+// See http://www.boost.org/libs/mpl for documentation.
+
+// $Id: order_impl.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
+// $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $
+// $Revision: 49267 $
+
+#include <boost/mpl/order_fwd.hpp>
+#include <boost/mpl/if.hpp>
+#include <boost/mpl/long.hpp>
+#include <boost/mpl/has_key.hpp>
+#include <boost/mpl/aux_/overload_names.hpp>
+#include <boost/mpl/aux_/static_cast.hpp>
+#include <boost/mpl/aux_/type_wrapper.hpp>
+#include <boost/mpl/aux_/traits_lambda_spec.hpp>
+#include <boost/mpl/aux_/config/msvc.hpp>
+#include <boost/mpl/aux_/config/static_constant.hpp>
+#include <boost/mpl/aux_/config/workaround.hpp>
+
+namespace boost { namespace mpl {
+
+// default implementation; requires 'Seq' to provide corresponding overloads 
+// of BOOST_MPL_AUX_OVERLOAD_ORDER_BY_KEY
+
+template< typename Seq, typename Key > struct x_order_impl
+#if BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1400)) \
+    || BOOST_WORKAROUND(__EDG_VERSION__, <= 245)
+{
+    BOOST_STATIC_CONSTANT(long, value = 
+          sizeof( BOOST_MPL_AUX_OVERLOAD_CALL_ORDER_BY_KEY(
+              Seq
+            , BOOST_MPL_AUX_STATIC_CAST(aux::type_wrapper<Key>*, 0)
+            ) )
+        );
+
+    typedef long_<value> type;
+
+#else // ISO98 C++
+    : long_< 
+          sizeof( BOOST_MPL_AUX_OVERLOAD_CALL_ORDER_BY_KEY(
+              Seq
+            , BOOST_MPL_AUX_STATIC_CAST(aux::type_wrapper<Key>*, 0)
+            ) )
+        >
+{
+#endif
+};
+
+template< typename Tag >
+struct order_impl
+{
+    template< typename Seq, typename Key > struct apply
+        : if_<
+              typename has_key_impl<Tag>::template apply<Seq,Key>
+            , x_order_impl<Seq,Key>
+            , void_
+            >::type
+    {
+    };
+};
+
+BOOST_MPL_ALGORITM_TRAITS_LAMBDA_SPEC(2,order_impl)
+
+}}
+
+#endif // BOOST_MPL_AUX_ORDER_IMPL_HPP_INCLUDED