Hi, I looked into it, you are correct, it has everything to do with the patch.
Removing 0002-Use-new-CMake-Python-discovery-with-matching-Boost-P.patch fixes the ftbfs. I don't know what changed when cmake upgraded from 3.15.4 -> 3.16.3 I also don't know if this is the best solution, but for now it works. You might see if it builds against libboost 1.71.0 which is in experimental. The upstream author might look into this, for this patch is also a commit upstream [1] and there are other people that probably has the same issue [2] I hope this gets it going again, and sorry for the trouble this patch has created. Håvard [1] https://github.com/mkeeter/antimony/commit/222ae890da81a1eacf5c528598e79a91c4bab58a [2] https://github.com/mkeeter/antimony/issues/211
