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diff --git a/boost/container/detail/mpl.hpp b/boost/container/detail/mpl.hpp
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+//////////////////////////////////////////////////////////////////////////////
+//
+// (C) Copyright Ion Gaztanaga 2005-2011.
+//
+// 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/container for documentation.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+#ifndef BOOST_CONTAINER_CONTAINER_DETAIL_MPL_HPP
+#define BOOST_CONTAINER_CONTAINER_DETAIL_MPL_HPP
+
+#if (defined _MSC_VER) && (_MSC_VER >= 1200)
+#  pragma once
+#endif
+
+#include <cstddef>
+
+namespace boost {
+namespace container { 
+namespace container_detail {
+
+template <class T, T val>
+struct integral_constant
+{
+   static const T value = val;
+   typedef integral_constant<T,val> type;
+};
+
+template< bool C_ >
+struct bool_ : integral_constant<bool, C_>
+{
+   static const bool value = C_;
+   operator bool() const { return bool_::value; }
+};
+
+typedef bool_<true>        true_;
+typedef bool_<false>       false_;
+
+typedef true_  true_type;
+typedef false_ false_type;
+
+typedef char yes_type;
+struct no_type
+{
+   char padding[8];
+};
+
+template <bool B, class T = void>
+struct enable_if_c {
+  typedef T type;
+};
+
+template <class T>
+struct enable_if_c<false, T> {};
+
+template <class Cond, class T = void>
+struct enable_if : public enable_if_c<Cond::value, T> {};
+
+template <class Cond, class T = void>
+struct disable_if : public enable_if_c<!Cond::value, T> {};
+
+template <bool B, class T = void>
+struct disable_if_c : public enable_if_c<!B, T> {};
+
+template <class T, class U>
+class is_convertible
+{
+   typedef char true_t;
+   class false_t { char dummy[2]; };
+   static true_t dispatch(U);
+   static false_t dispatch(...);
+   static T trigger();
+   public:
+   enum { value = sizeof(dispatch(trigger())) == sizeof(true_t) };
+};
+
+template<
+      bool C
+    , typename T1
+    , typename T2
+    >
+struct if_c
+{
+    typedef T1 type;
+};
+
+template<
+      typename T1
+    , typename T2
+    >
+struct if_c<false,T1,T2>
+{
+    typedef T2 type;
+};
+
+template<
+      typename T1
+    , typename T2
+    , typename T3
+    >
+struct if_
+{
+   typedef typename if_c<0 != T1::value, T2, T3>::type type;
+};
+
+
+template <class Pair>
+struct select1st 
+//   : public std::unary_function<Pair, typename Pair::first_type> 
+{
+   template<class OtherPair>
+   const typename Pair::first_type& operator()(const OtherPair& x) const 
+   {  return x.first;   }
+
+   const typename Pair::first_type& operator()(const typename Pair::first_type& x) const 
+   {  return x;   }
+};
+
+// identity is an extension: it is not part of the standard.
+template <class T>
+struct identity 
+//   : public std::unary_function<T,T> 
+{
+   typedef T type;
+   const T& operator()(const T& x) const 
+   { return x; }
+};
+
+template<std::size_t S>
+struct ls_zeros
+{
+   static const std::size_t value = (S & std::size_t(1)) ? 0 : (1u + ls_zeros<(S >> 1u)>::value);
+};
+
+template<>
+struct ls_zeros<0>
+{
+   static const std::size_t value = 0;
+};
+
+template<>
+struct ls_zeros<1>
+{
+   static const std::size_t value = 0;
+};
+
+template <typename T> struct unvoid { typedef T type; };
+template <> struct unvoid<void> { struct type { }; };
+template <> struct unvoid<const void> { struct type { }; };
+
+}  //namespace container_detail { 
+}  //namespace container { 
+}  //namespace boost {
+
+#endif   //#ifndef BOOST_CONTAINER_CONTAINER_DETAIL_MPL_HPP
+