MarsSeed [1] filed a deletion request for adplug-mame [2]: Seems this adplug (AdLib sound plugin) fork based on adplug v2.2.1 from 2010 has been discontinued. The patch was hosted on a personal kind of game archival site and is already gone (404). No other sources seem to be available. The main AdPlug has previously also used some codec/emulator library extracted from MAME, but since that time, they've developed their own internal substitute which is much better. [a] [a] https://github.com/adplug/adplug/blob/master/README#L87 Therefore I conclude that this lost-source, 2010 version of adplug is not needed and can be safely deleted from AUR. (Also, nothing depends specfically on this package.) [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/adplug-mame/