;;; KLUDGE: set up the vital fifth argument, passed on the
;;; stack. Do this unconditionally, even if the stub is for a
;;; function with few arguments: it can't hurt. We only do this for
;;; KLUDGE: set up the vital fifth argument, passed on the
;;; stack. Do this unconditionally, even if the stub is for a
;;; function with few arguments: it can't hurt. We only do this for