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diff --git a/boost/log/detail/embedded_string_type.hpp b/boost/log/detail/embedded_string_type.hpp
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+++ b/boost/log/detail/embedded_string_type.hpp
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+/*
+ *          Copyright Andrey Semashev 2007 - 2014.
+ * 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)
+ */
+/*!
+ * \file   embedded_string_type.hpp
+ * \author Andrey Semashev
+ * \date   16.08.2009
+ *
+ * This header is the Boost.Log library implementation, see the library documentation
+ * at http://www.boost.org/doc/libs/release/libs/log/doc/html/index.html.
+ */
+
+#ifndef BOOST_LOG_DETAIL_EMBEDDED_STRING_TYPE_HPP_INCLUDED_
+#define BOOST_LOG_DETAIL_EMBEDDED_STRING_TYPE_HPP_INCLUDED_
+
+#include <string>
+#include <boost/type_traits/remove_cv.hpp>
+#include <boost/log/detail/config.hpp>
+#include <boost/log/detail/header.hpp>
+
+#ifdef BOOST_HAS_PRAGMA_ONCE
+#pragma once
+#endif
+
+namespace boost {
+
+BOOST_LOG_OPEN_NAMESPACE
+
+namespace aux {
+
+template< typename T, typename ArgT >
+struct make_embedded_string_type_impl
+{
+    typedef ArgT type;
+};
+
+template< typename ArgT >
+struct make_embedded_string_type_impl< char, ArgT >
+{
+    typedef std::basic_string< char > type;
+};
+
+template< typename ArgT >
+struct make_embedded_string_type_impl< const char, ArgT >
+{
+    typedef std::basic_string< char > type;
+};
+
+template< typename ArgT >
+struct make_embedded_string_type_impl< wchar_t, ArgT >
+{
+    typedef std::basic_string< wchar_t > type;
+};
+
+template< typename ArgT >
+struct make_embedded_string_type_impl< const wchar_t, ArgT >
+{
+    typedef std::basic_string< wchar_t > type;
+};
+
+#if !defined(BOOST_NO_CXX11_CHAR16_T)
+template< typename ArgT >
+struct make_embedded_string_type_impl< char16_t, ArgT >
+{
+    typedef std::basic_string< char16_t > type;
+};
+
+template< typename ArgT >
+struct make_embedded_string_type_impl< const char16_t, ArgT >
+{
+    typedef std::basic_string< char16_t > type;
+};
+#endif
+
+#if !defined(BOOST_NO_CXX11_CHAR32_T)
+template< typename ArgT >
+struct make_embedded_string_type_impl< char32_t, ArgT >
+{
+    typedef std::basic_string< char32_t > type;
+};
+
+template< typename ArgT >
+struct make_embedded_string_type_impl< const char32_t, ArgT >
+{
+    typedef std::basic_string< char32_t > type;
+};
+#endif
+
+//! An auxiliary type translator to store strings by value in function objects and attribute values
+template< typename ArgT >
+struct make_embedded_string_type :
+    public remove_cv< ArgT >
+{
+};
+
+template< typename ArgT >
+struct make_embedded_string_type< ArgT* > :
+    public make_embedded_string_type_impl< ArgT, ArgT* >
+{
+};
+
+template< typename ArgT, unsigned int CountV >
+struct make_embedded_string_type< ArgT[CountV] > :
+    public make_embedded_string_type_impl< ArgT, ArgT[CountV] >
+{
+};
+
+template< typename ArgT, unsigned int CountV >
+struct make_embedded_string_type< ArgT(&)[CountV] > :
+    public make_embedded_string_type_impl< ArgT, ArgT(&)[CountV] >
+{
+};
+
+} // namespace aux
+
+BOOST_LOG_CLOSE_NAMESPACE // namespace log
+
+} // namespace boost
+
+#include <boost/log/detail/footer.hpp>
+
+#endif // BOOST_LOG_DETAIL_EMBEDDED_STRING_TYPE_HPP_INCLUDED_