MAXINCR
MAXINCR(qp->qh_hmax, qp->qh_hlen);
MAXINCR(qrp->qr_qmax, qrp->qr_qlen);
MAXINCR(qp->qh_qmax, qp->qh_qlen);
if (((sp->end - sp->base) < incr) && (MAXINCR < incr))
else if ((sp->end - sp->base) > MAXINCR)
size = (sp->end - sp->base) + MAXINCR;