Comment 11 for bug 1391857

Created attachment 104568
alternative solution

An alternative patch that would make the rectangular tessellator
work also with empty boxes, so intrinsically safe also for
other (future) callers.

Obviously only valid if I understood what it's doing and it
is possible to effectively ignore empty boxes.

> Would it be ok with you if this test case were included with Cairo? Would the > following license header be suitable? Do you want some copyright notice to be > included? Which one?

it is ok with me, it is suitable, don't want any copyright notice, whatever.