MarsSeed [1] filed a deletion request for gr-osmosdr-xtrx-git [2]: Orphaned VCS package, last updated in 2020. This fork/patch of gnuradio-osmosdr seems to have been discontinued 2 years ago. So I recommend to delete this now obsolete VCS package. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/gr-osmosdr-xtrx-git/