Comment # 4 on bug 1225776 from Dr. Werner Fink

(In reply to Martin Jambor from comment #2)
> Fixing that, there are incompatible pointer type errors in
> cmd/smyrna/polytess.c which upstream seemed to have addressed with
> https://gitlab.com/graphviz/graphviz/-/commit/
> 87cc54644e40fccc0651b7fedc137b3dd02b4514
> 
> However, the patch does not apply cleanly and so it seems it would
> be better to simply defer fixing this until we grab a new upstream
> version.

Only the `void` in the fucntion argument was missed ... so I've
ported the commit as patch graphviz-87cc546.patch beside patch
graphviz-2.49.3-boo1225776-gcc14.patch