MarsSeed [1] filed a deletion request for ffmpeg-compat-58 [2]: I believe this package should be deleted at least until Arch extra carries ffmpeg4.4. It is not useful to keep this imperfect duplicate of that in AUR. Also, the ffmpeg-compat-* naming scheme have been sunsetted by Arch a long time ago, opting instead to occasionally carry a parallel but full legacy ffmpeg version, cf. ffmpeg4.4 in extra, or AUR/ffmpeg3.4. The huge problem with ffmpeg-compat-* packages is that they do a full build, but then strip almost everything out, keeping only some versioned .SO files. Then it leads to the problem that no AUR packages can build from source against such an ffmpeg-compat package, because it does not provide the header includes for that ffmpeg version. In contrast, ffmpeg4.4 and e.g. AUR/ffmpeg3.4 carry everything including the headers, and cleverly solve the problem of side-by-side installation. ffmpeg-compat-58 is not needed specifically by anything on AUR. Those AUR packages that define depending on ffmpeg's SO libraries link to it indirectly via this package's virtual provides, but these dependent AUR packages would, as mentioned above, fail to build if the user did have this ffmpeg-compat package installed instead of ffmpeg4.4. All in all, not needed by anything, and ffmpeg-compat packages can prevent AUR's source-built packages from compiling. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/ffmpeg-compat-58/