MarsSeed [1] filed a deletion request for chicken-xtypes [2]: This chicken4 library from 2015 is broken: not compatible with repo chicken v5. But not needed: its one former consumer (stable and -git variant package) was also a broken chicken4 package and it got deleted recently (PRQ#42746, PRQ#42747). [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/chicken-xtypes/