1>example_boost_class_export.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: static void __cdecl boost::archive::detail::archive_serializer_map::insert(class boost::archive::detail::basic_serializer const *)" (__imp_?insert@?$archive_serializer_map@Vpolymorphic_xml_iarchive@archive@boost@@@detail@archive@boost@@SAXPBVbasic_serializer@234@@Z) referenced in function "protected: __thiscall boost::archive::detail::pointer_iserializer::pointer_iserializer(void)" (??0?$pointer_iserializer@Vpolymorphic_xml_iarchive@archive@boost@@UA@@@detail@archive@boost@@IAE@XZ) 1>example_boost_class_export.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: static void __cdecl boost::archive::detail::archive_serializer_map > >::insert(class boost::archive::detail::basic_serializer const *)" (__imp_?insert@?$archive_serializer_map@V?$polymorphic_oarchive_route@V?$xml_oarchive_impl@Vxml_oarchive@archive@boost@@@archive@boost@@@detail@archive@boost@@@detail@archive@boost@@SAXPBVbasic_serializer@234@@Z) referenced in function "public: __thiscall boost::archive::detail::pointer_oserializer >,struct A>::pointer_oserializer >,struct A>(void)" (??0?$pointer_oserializer@V?$polymorphic_oarchive_route@V?$xml_oarchive_impl@Vxml_oarchive@archive@boost@@@archive@boost@@@detail@archive@boost@@UA@@@detail@archive@boost@@QAE@XZ) 1>example_boost_class_export.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: static void __cdecl boost::archive::detail::archive_serializer_map > >::erase(class boost::archive::detail::basic_serializer const *)" (__imp_?erase@?$archive_serializer_map@V?$polymorphic_oarchive_route@V?$xml_oarchive_impl@Vxml_oarchive@archive@boost@@@archive@boost@@@detail@archive@boost@@@detail@archive@boost@@SAXPBVbasic_serializer@234@@Z) referenced in function "public: __thiscall boost::archive::detail::pointer_oserializer >,struct B>::~pointer_oserializer >,struct B>(void)" (??1?$pointer_oserializer@V?$polymorphic_oarchive_route@V?$xml_oarchive_impl@Vxml_oarchive@archive@boost@@@archive@boost@@@detail@archive@boost@@UB@@@detail@archive@boost@@QAE@XZ) 1>example_boost_class_export.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: static void __cdecl boost::archive::detail::archive_serializer_map::erase(class boost::archive::detail::basic_serializer const *)" (__imp_?erase@?$archive_serializer_map@Vpolymorphic_xml_iarchive@archive@boost@@@detail@archive@boost@@SAXPBVbasic_serializer@234@@Z) referenced in function "protected: __thiscall boost::archive::detail::pointer_iserializer::~pointer_iserializer(void)" (??1?$pointer_iserializer@Vpolymorphic_xml_iarchive@archive@boost@@UB@@@detail@archive@boost@@IAE@XZ)