MarsSeed [1] filed a deletion request for lib32-gperftools [2]: This is only the library part of gperftools, and nothing depends on this package anymore, so there seems to be no point in keeping it on AUR.
[1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/lib32-gperftools/
