dbermond [1] filed a deletion request for libaom [2]: aom package is now in the [extra] official repository. Package name in official repository was picked as 'aom' instead of 'libaom'. Now this package is a clone of aom and can be deleted. https://www.archlinux.org/packages/extra/x86_64/aom/ [1] https://aur.archlinux.org/account/dbermond/ [2] https://aur.archlinux.org/pkgbase/libaom/