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diff --git a/3rdParty/Boost/src/boost/fusion/sequence/intrinsic/at_key.hpp b/3rdParty/Boost/src/boost/fusion/sequence/intrinsic/at_key.hpp
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+++ b/3rdParty/Boost/src/boost/fusion/sequence/intrinsic/at_key.hpp
@@ -0,0 +1,93 @@
+/*=============================================================================
+    Copyright (c) 2001-2011 Joel de Guzman
+    Copyright (c) 2006 Dan Marsden
+
+    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)
+==============================================================================*/
+#if !defined(BOOST_FUSION_AT_KEY_20060304_1755)
+#define BOOST_FUSION_AT_KEY_20060304_1755
+
+#include <boost/type_traits/is_const.hpp>
+#include <boost/fusion/sequence/intrinsic_fwd.hpp>
+#include <boost/fusion/algorithm/query/find.hpp>
+#include <boost/fusion/iterator/deref_data.hpp>
+#include <boost/fusion/support/tag_of.hpp>
+#include <boost/fusion/support/detail/access.hpp>
+
+namespace boost { namespace fusion
+{
+    // Special tags:
+    struct sequence_facade_tag;
+    struct boost_array_tag; // boost::array tag
+    struct mpl_sequence_tag; // mpl sequence tag
+    struct std_pair_tag; // std::pair tag
+
+    namespace extension
+    {
+        template <typename Tag>
+        struct at_key_impl
+        {
+            template <typename Seq, typename Key>
+            struct apply
+            {
+                typedef typename
+                    result_of::deref_data<
+                        typename result_of::find<Seq, Key>::type
+                    >::type
+                type;
+
+                static type
+                call(Seq& seq)
+                {
+                    return fusion::deref_data(fusion::find<Key>(seq));
+                }
+            };
+        };
+
+        template <>
+        struct at_key_impl<sequence_facade_tag>
+        {
+            template <typename Sequence, typename Key>
+            struct apply : Sequence::template at_key_impl<Sequence, Key> {};
+        };
+
+        template <>
+        struct at_key_impl<boost_array_tag>;
+
+        template <>
+        struct at_key_impl<mpl_sequence_tag>;
+
+        template <>
+        struct at_key_impl<std_pair_tag>;
+    }
+
+    namespace result_of
+    {
+        template <typename Sequence, typename Key>
+        struct at_key
+            : extension::at_key_impl<typename detail::tag_of<Sequence>::type>::
+                template apply<Sequence, Key>
+        {};
+    }
+
+    template <typename Key, typename Sequence>
+    inline typename 
+        lazy_disable_if<
+            is_const<Sequence>
+          , result_of::at_key<Sequence, Key>
+        >::type
+    at_key(Sequence& seq)
+    {
+        return result_of::at_key<Sequence, Key>::call(seq);
+    }
+
+    template <typename Key, typename Sequence>
+    inline typename result_of::at_key<Sequence const, Key>::type
+    at_key(Sequence const& seq)
+    {
+        return result_of::at_key<Sequence const, Key>::call(seq);
+    }
+}}
+
+#endif