Another issue you should address:
I duplicate-long-description libcunit1-dev libcunit1 libcunit1-ncurses-dev libcunit1-ncurses libcunit1-doc (you might append something like "this is the development package" "this is the common documentation" or so) feel free to steal from python-pyqtgraph or boinc packages :) (the former has a doc package, the latter has many library packages and dev) you also have this issue: https://lintian.debian.org/tags/license-problem-gfdl-non-official-text.html please try to fix it or report upstream if possible! cheers, Gianfranco