When rerunning make get-sources, it breaks for the Whonix folder (https://github.com/Whonix/Whonix).
--> Downloading additional sources for Whonix... + make --quiet -C qubes-src/Whonix get-sources
I could implement a dummy in makefile-generic-packages (genmkfile). Easy.
Do you think there is a more appropriate solution? And anything else that should be implemented?
(There already is an empty Makefile.builder [https://github.com/Whonix/Whonix/blob/master/Makefile.builder].)