mkopt
extern int mkopt PROTO ((int)); /* make a machine optional */
return mkopt(mkposcl(state));
tail = mkopt(link_machines(copy, tail));
$$ = mkopt(
$$ = mkopt( $1 );
$$ = mkopt(
struct opt *mkopt(char *, struct dev *, struct opt_alt *,
if (mkopt(optarg, d, alt_list, pmin, pmax, rmin, rmax,
o = mkopt("default", dev_list, alt_list, pmin, pmax, rmin, rmax,