FabioLolix [1] filed a deletion request for qt5.6-webkit [2]: Old version not required by other pkgbuilds, abandoned, 0 votes, this was needed around 2017 seems, source for building qt5.6 depends no longer exist [1] https://aur.archlinux.org/account/FabioLolix/ [2] https://aur.archlinux.org/pkgbase/qt5.6-webkit/