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diff --git a/cutl/details/boost/smart_ptr/detail/atomic_count_win32.hpp b/cutl/details/boost/smart_ptr/detail/atomic_count_win32.hpp
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+#ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_WIN32_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_WIN32_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+// boost/detail/atomic_count_win32.hpp
+//
+// Copyright (c) 2001-2005 Peter Dimov
+//
+// 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)
+//
+
+#include <cutl/details/boost/detail/interlocked.hpp>
+
+namespace cutl_details_boost
+{
+
+namespace detail
+{
+
+class atomic_count
+{
+public:
+
+ explicit atomic_count( long v ): value_( v )
+ {
+ }
+
+ long operator++()
+ {
+ return BOOST_INTERLOCKED_INCREMENT( &value_ );
+ }
+
+ long operator--()
+ {
+ return BOOST_INTERLOCKED_DECREMENT( &value_ );
+ }
+
+ operator long() const
+ {
+ return static_cast<long const volatile &>( value_ );
+ }
+
+private:
+
+ atomic_count( atomic_count const & );
+ atomic_count & operator=( atomic_count const & );
+
+ long value_;
+};
+
+} // namespace detail
+
+} // namespace cutl_details_boost
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_WIN32_HPP_INCLUDED