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diff --git a/src/boost/libs/serialization/test/polymorphic_derived2.hpp b/src/boost/libs/serialization/test/polymorphic_derived2.hpp
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+++ b/src/boost/libs/serialization/test/polymorphic_derived2.hpp
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+#ifndef BOOST_SERIALIZATION_TEST_POLYMORPHIC_DERIVED2_HPP
+#define BOOST_SERIALIZATION_TEST_POLYMORPHIC_DERIVED2_HPP
+
+// MS compatible compilers support #pragma once
+#if defined(_MSC_VER)
+# pragma once
+#endif
+
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+// polymorphic_derived2.hpp    simple class test
+
+// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
+// Use, modification and distribution is subject to 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 for updates, documentation, and revision history.
+
+#include <boost/config.hpp>
+
+#include <boost/serialization/access.hpp>
+#include <boost/serialization/nvp.hpp>
+#include <boost/serialization/base_object.hpp>
+#include <boost/serialization/type_info_implementation.hpp>
+#include <boost/serialization/extended_type_info_typeid.hpp>
+
+#if defined(POLYMORPHIC_DERIVED2_IMPORT)
+    #define POLYMORPHIC_DERIVED2_DLL_DECL BOOST_SYMBOL_IMPORT
+    #pragma message ("polymorphic_derived2 imported")
+#elif defined(POLYMORPHIC_DERIVED2_EXPORT)
+    #define POLYMORPHIC_DERIVED2_DLL_DECL BOOST_SYMBOL_EXPORT
+    #pragma message ("polymorphic_derived2 exported")
+#endif
+
+#ifndef POLYMORPHIC_DERIVED2_DLL_DECL
+    #define POLYMORPHIC_DERIVED2_DLL_DECL
+#endif
+
+#define POLYMORPHIC_BASE_IMPORT
+#include "polymorphic_base.hpp"
+
+class BOOST_SYMBOL_VISIBLE polymorphic_derived2 :
+    public polymorphic_base
+{
+    friend class boost::serialization::access;
+    template<class Archive>
+    POLYMORPHIC_DERIVED2_DLL_DECL void serialize(
+        Archive &ar,
+        const unsigned int /* file_version */
+    );
+    POLYMORPHIC_DERIVED2_DLL_DECL const char * get_key() const;
+public:
+    POLYMORPHIC_DERIVED2_DLL_DECL polymorphic_derived2();
+    POLYMORPHIC_DERIVED2_DLL_DECL ~polymorphic_derived2();
+};
+
+// we use this because we want to assign a key to this type
+// but we don't want to explicitly instantiate code every time
+// we do so!!!.  If we don't do this, we end up with the same
+// code in BOTH the DLL which implements polymorphic_derived2
+// as well as the main program.
+BOOST_CLASS_EXPORT_KEY(polymorphic_derived2)
+
+// note the mixing of type_info systems is supported.
+BOOST_CLASS_TYPE_INFO(
+    polymorphic_derived2,
+    boost::serialization::extended_type_info_typeid<polymorphic_derived2>
+)
+
+#endif // BOOST_SERIALIZATION_TEST_POLYMORPHIC_DERIVED2_HPP
+