Comment 34 for bug 1178373

(In reply to Vladimír Čunát from comment #12)
> Is there some reason why no solution of some kind has been integrated into
> the official repository? People still can even work around it by passing
> --enable-deprecated to upower's configure (as we do on NixOS now), but in
> time most distros will need a better solution.

Because nobody volunteered for maintaining xfce4-session long term, unfortunately.