LibreOffice doesn't start if QT_NO_GLIB is set
That was a surprising find. Libreoffice wouldn't start anymore (just some splash screen with a progressbar, then nothing happens).
After some debugging (comparing my normal zsh session where it wouldn't start, with a clean `sudo -u dfaure bash` session where it worked), I found the culprit. I had QT_NO_GLIB=1 in my environment for some reason, and that's what breaks libreoffice...
Posting this in case it helps someone one day ;)
Probably for other things as well
I would expect this to also be the case for integration with other GTK things, like things using Qt/GStreamer glued together or something firefox-ish. Maybe such integrations should test early for their event dispatchers ?
Konsole accidentally sets QT_NO_GLIB for processes running in it. This should fix it: https://phabricator.kde.org/D14558