I was wrong. In override_dh_auto_build || dh_auto_build
the first would do nothing but return exit code 0 as per the log: + ./debian/rules override_dh_auto_build dh override_dh_auto_build It's beyond me why, it is what it is. Leaving only dh_auto_build is enough and I submitted a merge request in Salsa[1] for it. [1] https://salsa.debian.org/gnome-team/gnome-remote-desktop/-/merge_requests/9