emden

Is there any way to get a traceback as to where the actual problem occurs in the code?

Why is everyone building from the GIT source? If you just build from the source package, all of these issues are avoided.

The trouble appears related to the two edge labels. As a workaround, change either edge label to xlabel.

The root problem is the edge label. Change the edge label to [xlabel=":8666"]; as a workaround.

It appears the Appveyor build for Windows does not check for either the GTS library or the Triangulation library. If one of these is available, the configuration process will set...

I'm surprised that overlap=true didn't work. If not, that's a bug. I'll look into it. In the old Windows package, I believe we built GTS, ANN and a couple of...

Note that there really is only one layout program; neato and the rest are just links to dot. Alternatively, as you noticed, you can specify the layout algorithm using the...

This would probably be trivial to debug with access to a Windows debugger, especially if one could compare that with Linux output. A first step would be to remove as...

Because one should be able to bound the possible number of trapezoids given the number of rectangular objects. There must be something in the Windows code that makes this analysis...

One could write a more defensive code which would allow one to exceed the bound, but that would be hiding something wrong in the code.