PTCA_CONTROL
case PTCA_CONTROL:
if (ptc->ptc_action != PTCA_CONTROL) {
ptc->ptc_action = PTCA_CONTROL;
case PTCA_CONTROL:
ptc->ptc_action = PTCA_CONTROL;
(mnew = make_control(tcl, tll, PTCA_CONTROL, tcl)) ==