MarsSeed [1] filed a deletion request for intel-oneapi-ccl [2]: Arch [extra] intel-oneapi-basekit provides the latest version of intel-oneapi-ccl. This one is from 2021 and is actually a binary, so even the package name is wrong. But overall it is a superfluous package. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/intel-oneapi-ccl/