de_fault (to_core_file_to_sym_file, (char *(*)PARAMS ((char *))) return_zero);
de_fault (to_can_async_p, (int (*) (void)) return_zero);
de_fault (to_is_async_p, (int (*) (void)) return_zero);
de_fault (to_core_file_to_sym_file, (char *(*)PARAMS ((char *))) return_zero);
de_fault (to_can_async_p, (int (*) (void)) return_zero);
de_fault (to_is_async_p, (int (*) (void)) return_zero);