MarsSeed [1] filed a deletion request for lib32-ffmpeg-semifull-git [2]: Seems like there is zero interest in this 32-bit git development version of ffmpeg. There are already working stable alternative lib32 packages here. Historically Wine has been the biggest consumer of 32-bit ffmpeg, but they are close to eliminating 32-bit runtime dependencies. I am already able to run my 32-bit games in 64-bit wineprefixes, which use 64-bit Linux libraries. Any specific package needing ffmpeg can rely on stable AUR/lib32-ffmpeg. This PKGBUILD has not been updated since September 2017. The package is not buildable in its current state. It is missing 16 (!) mandatory runtime dependencies and 1 make dependency, all of which have been completely dropped from Arch and AUR. Safe to delete this unneeded package, as there are up-to-date working alternatives in AUR, for those remaining 32-bit use cases that still exist. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/lib32-ffmpeg-semifull-git/