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diff --git a/boost/thread/lock_traits.hpp b/boost/thread/lock_traits.hpp
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+// 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)
+// (C) Copyright 2009-2012 Vicente J. Botet Escriba
+
+#ifndef BOOST_THREAD_LOCK_TRAITS_HPP
+#define BOOST_THREAD_LOCK_TRAITS_HPP
+
+#include <boost/thread/detail/config.hpp>
+//#include <boost/thread/detail/move.hpp>
+//#include <boost/thread/exceptions.hpp>
+//
+//#ifdef BOOST_THREAD_USES_CHRONO
+//#include <boost/chrono/time_point.hpp>
+//#include <boost/chrono/duration.hpp>
+//#endif
+
+#include <boost/type_traits/integral_constant.hpp>
+
+#include <boost/config/abi_prefix.hpp>
+
+namespace boost
+{
+
+/**
+ * An strict lock is a lock ensuring the mutex is locked on the scope of the lock
+ * There is no single way to define a strict lock as the strict_lock and
+ * nesteed_strict_lock shows. So we need a metafunction that states if a
+ * lock is a strict lock "sur parole".
+ */
+
+template <typename Lock>
+struct is_strict_lock_sur_parolle : false_type {};
+
+
+template <typename Lock>
+struct is_strict_lock_sur_parole : is_strict_lock_sur_parolle<Lock> {};
+
+template <typename Lock>
+struct is_strict_lock : is_strict_lock_sur_parole<Lock> {};
+
+}
+#include <boost/config/abi_suffix.hpp>
+
+#endif