Loading
gnome-desktop: add withSystemd option
Since 7f2a6f17 ("xdg-desktop-portal-gtk: Enable all default portals unconditionally"), building gnome-desktop is necessary to build xdg-desktop-portal-gtk, but it wasn't possible for systems that can't use systemd. I've called the option "withSystemd" as it's the most common name for this kind of option in Nixpkgs.