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+#ifndef BOOST_EXTENDED_TYPE_INFO_NO_RTTI_HPP
+#define BOOST_EXTENDED_TYPE_INFO_NO_RTTI_HPP
+
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+// MS compatible compilers support #pragma once
+#if defined(_MSC_VER)
+# pragma once
+#endif
+
+// extended_type_info_no_rtti.hpp: implementation for version that depends
+// on runtime typing (rtti - typeid) but uses a user specified string
+// as the portable class identifier.
+
+// (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/assert.hpp>
+
+#include <boost/config.hpp>
+#include <boost/static_assert.hpp>
+
+#include <boost/mpl/if.hpp>
+#include <boost/type_traits/is_polymorphic.hpp>
+#include <boost/type_traits/remove_const.hpp>
+
+#include <boost/serialization/static_warning.hpp>
+#include <boost/serialization/singleton.hpp>
+#include <boost/serialization/extended_type_info.hpp>
+#include <boost/serialization/factory.hpp>
+#include <boost/serialization/throw_exception.hpp>
+
+#include <boost/serialization/config.hpp>
+// hijack serialization access
+#include <boost/serialization/access.hpp>
+
+#include <boost/config/abi_prefix.hpp> // must be the last header
+#ifdef BOOST_MSVC
+#  pragma warning(push)
+#  pragma warning(disable : 4251 4231 4660 4275 4511 4512)
+#endif
+
+namespace boost {
+namespace serialization {
+///////////////////////////////////////////////////////////////////////
+// define a special type_info that doesn't depend on rtti which is not
+// available in all situations.
+
+namespace no_rtti_system {
+
+// common base class to share type_info_key.  This is used to 
+// identify the method used to keep track of the extended type
+class BOOST_SYMBOL_VISIBLE extended_type_info_no_rtti_0 :
+    public extended_type_info
+{
+protected:
+    BOOST_SERIALIZATION_DECL extended_type_info_no_rtti_0(const char * key);
+    BOOST_SERIALIZATION_DECL ~extended_type_info_no_rtti_0();
+public:
+    virtual BOOST_SERIALIZATION_DECL bool
+    is_less_than(const boost::serialization::extended_type_info &rhs) const ;
+    virtual BOOST_SERIALIZATION_DECL bool
+    is_equal(const boost::serialization::extended_type_info &rhs) const ;
+};
+
+} // no_rtti_system
+
+template<class T>
+class extended_type_info_no_rtti : 
+    public no_rtti_system::extended_type_info_no_rtti_0,
+    public singleton<extended_type_info_no_rtti< T > >
+{
+    template<bool tf>
+    struct action {
+        struct defined {
+            static const char * invoke(){
+                return guid< T >();
+            }
+        };
+        struct undefined {
+            // if your program traps here - you failed to 
+            // export a guid for this type.  the no_rtti
+            // system requires export for types serialized
+            // as pointers.
+            BOOST_STATIC_ASSERT(0 == sizeof(T));
+            static const char * invoke();
+        };
+        static const char * invoke(){
+            typedef 
+                typename boost::mpl::if_c<
+                    tf,
+                    defined,
+                    undefined
+                >::type type;
+            return type::invoke();
+        }
+    };
+public:
+    extended_type_info_no_rtti() :
+        no_rtti_system::extended_type_info_no_rtti_0(get_key())
+    {
+        key_register();
+    }
+    ~extended_type_info_no_rtti(){
+        key_unregister();
+    }
+    const extended_type_info *
+    get_derived_extended_type_info(const T & t) const {
+        // find the type that corresponds to the most derived type.
+        // this implementation doesn't depend on typeid() but assumes
+        // that the specified type has a function of the following signature.
+        // A common implemention of such a function is to define as a virtual
+        // function. So if the is not a polymporphic type it's likely an error
+        BOOST_STATIC_WARNING(boost::is_polymorphic< T >::value);
+        const char * derived_key = t.get_key();
+        BOOST_ASSERT(NULL != derived_key);
+        return boost::serialization::extended_type_info::find(derived_key);
+    }
+    const char * get_key() const{
+        return action<guid_defined< T >::value >::invoke();
+    }
+    virtual const char * get_debug_info() const{
+        return action<guid_defined< T >::value >::invoke();
+    }
+    virtual void * construct(unsigned int count, ...) const{
+        // count up the arguments
+        std::va_list ap;
+        va_start(ap, count);
+        switch(count){
+        case 0:
+            return factory<typename boost::remove_const< T >::type, 0>(ap);
+        case 1:
+            return factory<typename boost::remove_const< T >::type, 1>(ap);
+        case 2:
+            return factory<typename boost::remove_const< T >::type, 2>(ap);
+        case 3:
+            return factory<typename boost::remove_const< T >::type, 3>(ap);
+        case 4:
+            return factory<typename boost::remove_const< T >::type, 4>(ap);
+        default:
+            BOOST_ASSERT(false); // too many arguments
+            // throw exception here?
+            return NULL;
+        }
+    }
+    virtual void destroy(void const * const p) const{
+        boost::serialization::access::destroy(
+            static_cast<T const *>(p)
+        );
+        //delete static_cast<T const * const>(p) ;
+    }
+};
+
+} // namespace serialization
+} // namespace boost
+
+///////////////////////////////////////////////////////////////////////////////
+// If no other implementation has been designated as default, 
+// use this one.  To use this implementation as the default, specify it
+// before any of the other headers.
+
+#ifndef BOOST_SERIALIZATION_DEFAULT_TYPE_INFO
+    #define BOOST_SERIALIZATION_DEFAULT_TYPE_INFO
+    namespace boost {
+    namespace serialization {
+    template<class T>
+    struct extended_type_info_impl {
+        typedef typename 
+            boost::serialization::extended_type_info_no_rtti< T > type;
+    };
+    } // namespace serialization
+    } // namespace boost
+#endif
+
+#ifdef BOOST_MSVC
+#  pragma warning(pop)
+#endif
+#include <boost/config/abi_suffix.hpp> // pops abi_suffix.hpp pragmas
+
+#endif // BOOST_EXTENDED_TYPE_INFO_NO_RTTI_HPP