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diff --git a/boost/spirit/home/qi/copy.hpp b/boost/spirit/home/qi/copy.hpp
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+++ b/boost/spirit/home/qi/copy.hpp
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+/*=============================================================================
+    Copyright (c) 2001-2012 Joel de Guzman
+
+    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_SPIRIT_COPY_FEBRUARY_7_2012_0159PM)
+#define BOOST_SPIRIT_COPY_FEBRUARY_7_2012_0159PM
+
+#include <boost/config.hpp>
+#include <boost/proto/proto.hpp>
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#if !defined(BOOST_NO_CXX11_AUTO_DECLARATIONS)
+
+namespace boost { namespace spirit { namespace qi
+{
+    template <typename Expr>
+    typename boost::proto::result_of::deep_copy<Expr>::type
+    copy(Expr const& expr)
+    {
+        BOOST_SPIRIT_ASSERT_MATCH(boost::spirit::qi::domain, Expr);
+        return boost::proto::deep_copy(expr);
+    }
+}}}
+
+#endif
+#endif