MarsSeed [1] filed a deletion request for gdm3setup [2]: Upstream discontinued in 2015. Orphaned package. Current GDM version is 42, whereas this was developed for GDM 3. I suggest to delete it. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/gdm3setup/