cygwin xvfb.cygclass xvfb_run now hangs under GH scallywag

[Brian Inglis]

Hi folks,

While testing zint under GH scallywag (10903), cygport check ctest now hangs 
after running xvfb_run cygdrop ... ctest and had to be cancelled.
Everything worked fine for my previous zint updates up to 2025-03-01 (9484).

After adding b-r xorg-server-extra, using that package's xvfb-run (instead of 
xvfb.cygclass xvfb_run) works, but now with two test failures, under both GH 
scallywag (10907) and locally.

Does something need to be tweaked in xvfb_run xvfb.cygclass to have it use or 
work more like xorg-server-extra xvfb-run and avoid hanging but avoid issues?

-- 
Take care. Thanks, Brian Inglis              Calgary, Alberta, Canada

La perfection est atteinte                   Perfection is achieved
non pas lorsqu'il n'y a plus rien à ajouter  not when there is no more to add
mais lorsqu'il n'y a plus rien à retrancher  but when there is no more to cut
                                 -- Antoine de Saint-Exupéry