P_HELP_STD_HELP \
  (ARGP_HELP_SHORT_USAGE | ARGP_HELP_LONG | ARGP_HELP_EXIT_OK \
   | ARGP_HELP_DOC | ARGP_HELP_BUG_ADDR)

/* Output a usage message for ARGP to STREAM.  FLAGS are from the set
   ARGP_HELP_*.  */
extern void argp_help (const struct argp *__restrict __argp,
		       FILE *__restrict __stream,
		       unsigned __flags, char *__restrict __name);
extern void __argp_help (const struct argp *__restrict __argp,
			 FILE *__restrict __stream, unsigned __flags,
			 char *__name);