MarsSeed [1] filed a deletion request for lib32-libaec [2]: I suggest this 32-bit library is not needed anymore. Its only AUR consumer was lib32-hdf5, now deleted. HDF5 is for "storing scientific data". It is used by modern professional graphics processing software. This use case tends to need large amounts of addressable memory. Therefore it's not really feasible to use these applications with only 4 GiB RAM space enforced by 32-bit binaries. Safe to delete, nothing in AUR depends on it. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/lib32-libaec/