2002-10-18 Havoc Pennington <hp@pobox.com>
* src/stack.c (constrain_stacking): replace the old
apply_constraints with wacky new approach involving graphing all
the constraints then walking the graph. Fixes#94876 and probably
other stacking bugs as well, thanks to Arvind for tracking down
the issue.
(compute_layer): add FIXME and reference to bug #96140