It’s about packages installed early in the image.
Unrelated to host (build) system.
Missing host build dependence should be added here:
- https://github.com/Whonix/Whonix/blob/master/buildconfig.d/30_dependencies.conf
- or if virtualizer / target platform specific here: https://github.com/Whonix/Whonix/blob/master/build-steps.d/1120_prepare-build-machine
Ok, good. Thanks you for looking into this! 
Yes but no real need to have that package installed early or have it installed by default for everyone?
Will answer in Disk & USB Automount in Kicksecure - #21 by 59mpci2GJ5xlHhY