FabioLolix [1] filed a deletion request for glibc-2.27 [2]: Abandoned, old version of glibc installed in /opt; actually configured with --prefix=/usr and moved manually, this inconsistency have been reported on 2018-10-02 and never fixed, no other pkgbuilds depends on this [1] https://aur.archlinux.org/account/FabioLolix/ [2] https://aur.archlinux.org/pkgbase/glibc-2.27/