-/* Print a message with `fprintf (stderr, FORMAT, ...)';
- if ERRNUM is nonzero, follow it with ": " and strerror (ERRNUM).
- If STATUS is nonzero, terminate the program with `exit (STATUS)'. */
-
-extern void error (int status, int errnum,
- const char *format, ...)
- __attribute__ ((__format__ (__printf__, 3, 4)));
-