Actually, it seems to me it's not even distributable. The wording sounds like a requirement rather than something non-mandatory -- reinforced by providing the alternative of paying €10000. Yet the license is GPL3+, which expressly forbids additional fees. This is even described in FSF's GPL FAQ: https://www.gnu.org/licenses/gpl-faq.en.html#RequireCitation
Thus, the copyright holder can distribute this software, but no one else can. As the requirement is not a part of the license, we could just remove the demand nagware from the code. But alas, the upstream (Ole Tange) threatened legal action if you do so without renaming the package. And it doesn't seem to be just hot wind, as he registered it: US trademark number 87867112, filed Apr 07, 2018. Multiple people tried persuading the upstream to drop this requirement, without success. Thus, diplomacy doesn't appear to be likely to help, although letting rms know may work (this package has been blessed as an official GNU one, obviously before the requirement was added). Thus, only options I see are: * renaming the package and removing offending code, or * complete removal Meow! -- // If you believe in so-called "intellectual property", please immediately // cease using counterfeit alphabets. Instead, contact the nearest temple // of Amon, whose priests will provide you with scribal services for all // your writing needs, for Reasonable And Non-Discriminatory prices.
