line_break_details = me_spanner->get_bound (LEFT)->get_property ("line-break-system-details");
if (!me->get_system () && !pure)
- me->warning (_ ("vertical alignment called before line-breaking.\n"
- "Only do cross-staff spanners with PianoStaff."));
-
+ me->programming_error ("vertical alignment called before line-breaking");
}
Direction stacking_dir = robust_scm2dir (me->get_property ("stacking-dir"),