extern NORETURN void error (const char *fmt, ...) ATTR_NORETURN ATTR_FORMAT (printf, 1, 2);
-extern NORETURN void error_silent (const char *fmt, ...) ATTR_NORETURN ATTR_FORMAT (printf, 1, 2);
-
extern NORETURN void error_stream (struct ui_file *) ATTR_NORETURN;
/* Output arbitrary error message. */