Yes, gladly, but I don't know how to get one in this context. Do I need to add some flags to the Makefile, and if so, where? (It's a twisty maze of passages, all different.) . Note that this *is* a build with JIT enabled; when I disable it using the env variable, there are no errors and 3.0.0 works fine.
Also, it may take some time, as I have to rebuild my Windows system.