MarsSeed [1] filed a deletion request for qjsonrpc [2]: Unused library abandoned by upstream since 2016. [a] VCS package in disguise. Was originally developed for Qt4, and the Qt5 port seems to have been discontinued in its early stages. Based on the commit history, only Qt 5.0 and 5.1 was targeted. As nothing depends on this, I recommend deletion. [a]: https://bitbucket.org/devonit/qjsonrpc/commits/ [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/qjsonrpc/