MarsSeed  filed a deletion request for cloog-isl14 :
This legacy version from 7+ years ago seems not needed anymore. It certainly is not depended upon by any AUR packages.
So in order to ease maintenance burden, I recommend to delete this if there are no objections.
There are no user votes or comments that would indicate that anyone would protest.
(Also, the main isl package has been adopted from AUR to Arch [core] under the name 'libisl'. As AUR in principle has to align with Arch repos, any isl* packages here should in theory be renamed to libisl*, and their dependents would need to change their depends arrays as well. But it is easier to remove the truly unused legacy packages instead of pushing for effecting the former cross-maintainer changes.)
 https://aur.archlinux.org/account/MarsSeed/  https://aur.archlinux.org/pkgbase/cloog-isl14/