add boost on mac

macx64/include/boost/log/detail/attribute_get_value_impl.hpp

@@ -0,0 +1,43 @@
+/*
+ *          Copyright Andrey Semashev 2007 - 2015.
+ * 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   attribute_get_value_impl.hpp
+ * \author Andrey Semashev
+ * \date   04.08.2012
+ *
+ * \brief  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_ATTRIBUTE_GET_VALUE_IMPL_HPP_INCLUDED_
+#define BOOST_LOG_DETAIL_ATTRIBUTE_GET_VALUE_IMPL_HPP_INCLUDED_
+
+#include <boost/log/detail/config.hpp>
+#include <boost/log/attributes/attribute.hpp>
+#include <boost/log/attributes/attribute_value.hpp>
+#include <boost/log/detail/header.hpp>
+
+#ifdef BOOST_HAS_PRAGMA_ONCE
+#pragma once
+#endif
+
+namespace boost {
+
+BOOST_LOG_OPEN_NAMESPACE
+
+inline attribute_value attribute::get_value() const
+{
+    return m_pImpl->get_value();
+}
+
+BOOST_LOG_CLOSE_NAMESPACE // namespace log
+
+} // namespace boost
+
+#include <boost/log/detail/footer.hpp>
+
+#endif // BOOST_LOG_DETAIL_ATTRIBUTE_GET_VALUE_IMPL_HPP_INCLUDED_