Hi ! and thanks for reporting. I have reproduced it by building libvigraimpex from this branch: https://salsa.debian.org/ametzler/libvigraimpex/tree/tmp-ametzler-python3
The error is non-fatal (the build completes successfully) but I can see the same ghostscript error in the log. BTW, don't you think that such an error should be fatal for the build ? I have prepared the new version of doxygen with the upstream patch here: https://salsa.debian.org/debian/doxygen I plan to upload it shortly. Paolo
