tomn [1] filed a orphan request for cminpack [2]:
This is a useful package but the version here is broken and out of
date; the original author seems to have disappeared despite a working
PKGBUILD and patch being provided in the comments.
[1] https://aur.archlinux.org/account/tomn/
[2] https://aur.archlinux.org/pkgbase/cminpack/