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I had installed a the TeX editor
kile from the official Ubuntu PPA. It came together with a bunch of dependencies, TeXlive among them. The provided TeXlive version however is from 2015 and thus quite old, buggy and outdated. I removed all texlive* components manually by means of
dpkg -r --force-all and reinstalled a more recent version of texlive via the official texlive installer (install-tl). Works like a charm so far.
apt, which now insists on reinstalling the old texlive because of that unsatisfied dependency. How can I tell
apt to permanently ignore that missing dependency in the future and behave as if it were installed (which it actually is, just not through