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diff --git a/boost/spirit/home/x3/auxiliary/attr.hpp b/boost/spirit/home/x3/auxiliary/attr.hpp
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+/*=============================================================================
+    Copyright (c) 2001-2011 Hartmut Kaiser
+    Copyright (c) 2001-2014 Joel de Guzman
+    Copyright (c) 2013 Agustin Berge
+
+    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_SPIRIT_X3_ATTR_JUL_23_2008_0956AM
+#define BOOST_SPIRIT_X3_ATTR_JUL_23_2008_0956AM
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#include <boost/spirit/home/x3/core/parser.hpp>
+#include <boost/spirit/home/x3/support/unused.hpp>
+#include <boost/spirit/home/x3/support/traits/container_traits.hpp>
+#include <boost/spirit/home/x3/support/traits/move_to.hpp>
+#include <boost/type_traits/is_same.hpp>
+#include <boost/type_traits/remove_cv.hpp>
+#include <boost/type_traits/remove_reference.hpp>
+#include <algorithm>
+#include <cstddef>
+#include <string>
+#include <utility>
+
+namespace boost { namespace spirit { namespace x3
+{
+    template <typename Value>
+    struct attr_parser : parser<attr_parser<Value>>
+    {
+        typedef Value attribute_type;
+
+        static bool const has_attribute =
+            !is_same<unused_type, attribute_type>::value;
+        static bool const handles_container =
+            traits::is_container<attribute_type>::value;
+        
+        attr_parser(Value const& value)
+          : value_(value) {}
+        attr_parser(Value&& value)
+          : value_(std::move(value)) {}
+
+        template <typename Iterator, typename Context
+          , typename RuleContext, typename Attribute>
+        bool parse(Iterator& first, Iterator const& last
+          , Context const& context, RuleContext&, Attribute& attr_) const
+        {
+            // $$$ Change to copy_to once we have it $$$
+            traits::move_to(value_, attr_);
+            return true;
+        }
+
+        Value value_;
+
+    private:
+        // silence MSVC warning C4512: assignment operator could not be generated
+        attr_parser& operator= (attr_parser const&);
+    };
+    
+    template <typename Value, std::size_t N>
+    struct attr_parser<Value[N]> : parser<attr_parser<Value[N]>>
+    {
+        typedef Value attribute_type[N];
+
+        static bool const has_attribute =
+            !is_same<unused_type, attribute_type>::value;
+        static bool const handles_container = true;
+        
+        attr_parser(Value const (&value)[N])
+        {
+            std::copy(value + 0, value + N, value_ + 0);
+        }
+
+        attr_parser(Value (&&value)[N])
+        {
+            std::move(value + 0, value + N, value_ + 0);
+        }
+
+        template <typename Iterator, typename Context
+          , typename RuleContext, typename Attribute>
+        bool parse(Iterator& first, Iterator const& last
+          , Context const& context, RuleContext&, Attribute& attr_) const
+        {
+            // $$$ Change to copy_to once we have it $$$
+            traits::move_to(value_ + 0, value_ + N, attr_);
+            return true;
+        }
+
+        Value value_[N];
+
+    private:
+        // silence MSVC warning C4512: assignment operator could not be generated
+        attr_parser& operator= (attr_parser const&);
+    };
+    
+    template <typename Value>
+    struct get_info<attr_parser<Value>>
+    {
+        typedef std::string result_type;
+        std::string operator()(attr_parser<Value> const& /*p*/) const
+        {
+            return "attr";
+        }
+    };
+
+    struct attr_gen
+    {
+        template <typename Value>
+        attr_parser<typename remove_cv<
+            typename remove_reference<Value>::type>::type>
+        operator()(Value&& value) const
+        {
+            return {std::forward<Value>(value)};
+        }
+        
+        template <typename Value, std::size_t N>
+        attr_parser<typename remove_cv<Value>::type[N]>
+        operator()(Value (&value)[N]) const
+        {
+            return {value};
+        }
+        template <typename Value, std::size_t N>
+        attr_parser<typename remove_cv<Value>::type[N]>
+        operator()(Value (&&value)[N]) const
+        {
+            return {value};
+        }
+    };
+
+    attr_gen const attr = attr_gen();
+}}}
+
+#endif