segmentation fault with the viewer

[Emmanuelle Gouillart]

> Are you on master? Specifically, a version later than yesterday morning? The
> viewer-linking PR that was merged yesterday had a number of fixes for PySide. I
> don't see any issue on PyQt at the moment.

Yes, I'm on master (updated this morning, and I still get the same
problem). Maybe I have some libraries that are too old, I'll check on a
machine with a more recent Ubuntu when I get the occasion.

Thanks for your help, anyway!
Emmanuelle