246     tree.define< config::strings_set_node >("allowed_architectures");  in init_tree()
247     tree.define< config::strings_set_node >("allowed_platforms");  in init_tree()
252     tree.define< config::strings_set_node >("required_configs");  in init_tree()
268     tree.set< config::strings_set_node >("allowed_architectures",  in set_defaults()
270     tree.set< config::strings_set_node >("allowed_platforms",  in set_defaults()
275     tree.set< config::strings_set_node >("required_configs",  in set_defaults()
418         return _pimpl->props.lookup< config::strings_set_node >(  in allowed_architectures()
421         return get_defaults().lookup< config::strings_set_node >(  in allowed_architectures()
434         return _pimpl->props.lookup< config::strings_set_node >(  in allowed_platforms()
437         return get_defaults().lookup< config::strings_set_node >(  in allowed_platforms()
503         return _pimpl->props.lookup< config::strings_set_node >(  in required_configs()
506         return get_defaults().lookup< config::strings_set_node >(  in required_configs()
716         _pimpl->props.set< config::strings_set_node >(  in add_allowed_architecture()
718             get_defaults().lookup< config::strings_set_node >(  in add_allowed_architecture()
721     lookup_rw< config::strings_set_node >(  in add_allowed_architecture()
738         _pimpl->props.set< config::strings_set_node >(  in add_allowed_platform()
740             get_defaults().lookup< config::strings_set_node >(  in add_allowed_platform()
743     lookup_rw< config::strings_set_node >(  in add_allowed_platform()
777         _pimpl->props.set< config::strings_set_node >(  in add_required_config()
779             get_defaults().lookup< config::strings_set_node >(  in add_required_config()
782     lookup_rw< config::strings_set_node >(  in add_required_config()
840     set< config::strings_set_node >(_pimpl->props, "allowed_architectures", as);  in set_allowed_architectures()
855     set< config::strings_set_node >(_pimpl->props, "allowed_platforms", ps);  in set_allowed_platforms()
933     set< config::strings_set_node >(_pimpl->props, "required_configs", vars);  in set_required_configs()