PF_SUBSIDGONE
pty->pt_flags &= ~PF_SUBSIDGONE;
pty->pt_flags |= PF_SUBSIDGONE; /* let the controller know */
pty->pt_flags |= PF_SUBSIDGONE;
if (pty->pt_flags & PF_SUBSIDGONE) {
if (pty->pt_flags & PF_SUBSIDGONE) {
if (pty->pt_flags & PF_SUBSIDGONE) {
if (pty->pt_flags & PF_SUBSIDGONE) {