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diff --git a/libstdc++-v3/include/tr1_impl/utility b/libstdc++-v3/include/tr1_impl/utility
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+// TR1 utility -*- C++ -*-
+
+// Copyright (C) 2007, 2008, 2009 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file tr1_impl/utility
+ *  This is an internal header file, included by other library headers.
+ *  You should not attempt to use it directly.
+ */
+
+namespace std
+{
+_GLIBCXX_BEGIN_NAMESPACE_TR1
+
+  template<class _Tp>
+    class tuple_size;
+
+#ifdef _GLIBCXX_INCLUDE_AS_CXX0X
+  template<std::size_t _Int, class _Tp>
+#else
+  template<int _Int, class _Tp>
+#endif
+    class tuple_element;
+
+   // Various functions which give std::pair a tuple-like interface.
+  template<class _Tp1, class _Tp2>
+    struct tuple_size<std::pair<_Tp1, _Tp2> >
+#ifdef _GLIBCXX_INCLUDE_AS_CXX0X
+    { static const std::size_t value = 2; };
+#else
+    { static const int value = 2; };
+#endif
+
+  template<class _Tp1, class _Tp2>
+#ifdef _GLIBCXX_INCLUDE_AS_CXX0X
+    const std::size_t
+#else
+    const int
+#endif
+    tuple_size<std::pair<_Tp1, _Tp2> >::value;
+
+  template<class _Tp1, class _Tp2>
+    struct tuple_element<0, std::pair<_Tp1, _Tp2> >
+    { typedef _Tp1 type; };
+ 
+  template<class _Tp1, class _Tp2>
+    struct tuple_element<1, std::pair<_Tp1, _Tp2> >
+    { typedef _Tp2 type; };
+
+#ifdef _GLIBCXX_INCLUDE_AS_CXX0X
+  template<std::size_t _Int>
+#else
+  template<int _Int>
+#endif
+    struct __pair_get;
+
+  template<>
+    struct __pair_get<0>
+    {
+      template<typename _Tp1, typename _Tp2>
+      static _Tp1& __get(std::pair<_Tp1, _Tp2>& __pair)
+      { return __pair.first; }
+
+      template<typename _Tp1, typename _Tp2>
+      static const _Tp1& __const_get(const std::pair<_Tp1, _Tp2>& __pair)
+      { return __pair.first; }
+    };
+
+  template<>
+    struct __pair_get<1>
+    {
+      template<typename _Tp1, typename _Tp2>
+      static _Tp2& __get(std::pair<_Tp1, _Tp2>& __pair)
+      { return __pair.second; }
+
+      template<typename _Tp1, typename _Tp2>
+      static const _Tp2& __const_get(const std::pair<_Tp1, _Tp2>& __pair)
+      { return __pair.second; }
+    };
+
+#ifdef _GLIBCXX_INCLUDE_AS_CXX0X
+  template<std::size_t _Int, class _Tp1, class _Tp2>
+#else
+  template<int _Int, class _Tp1, class _Tp2>
+#endif
+    inline typename tuple_element<_Int, std::pair<_Tp1, _Tp2> >::type&
+    get(std::pair<_Tp1, _Tp2>& __in)
+    { return __pair_get<_Int>::__get(__in); }
+
+#ifdef _GLIBCXX_INCLUDE_AS_CXX0X
+  template<std::size_t _Int, class _Tp1, class _Tp2>
+#else
+  template<int _Int, class _Tp1, class _Tp2>
+#endif
+    inline const typename tuple_element<_Int, std::pair<_Tp1, _Tp2> >::type&
+    get(const std::pair<_Tp1, _Tp2>& __in)
+    { return __pair_get<_Int>::__const_get(__in); }
+
+_GLIBCXX_END_NAMESPACE_TR1
+}
+