message: add default return value to dodge the warning
diff: @@ -315,6 +315,8 @@ prof_sys_thread_name_read_impl(char *buf, size_t limit) {
  #else
  return ENOSYS;
  #endif
  +#else
  + return 0;
  #endif
  }
  prof_sys_thread_name_read_t *JET_MUTABLE prof_sys_thread_name_read =
  