XD_WLABEL
(xd->flags & XD_WLABEL) != 0) <= 0)
xd->flags |= XD_WLABEL;
xd->flags &= ~XD_WLABEL;
xd->flags |= XD_WLABEL;
xd->flags &= ~XD_WLABEL;
(xd->flags & XD_WLABEL) != 0) <= 0)