skef

I pushed another commit to this PR and updated the explantion. I also upgraded it from a draft to ready for review.

@behdad looks like Python 3.13 is raising inconvenient (for AFDKO) warnings from fs now: ``` ../../py/lib/python3.13/site-packages/fs/__init__.py:4 /home/skef/py/lib/python3.13/site-packages/fs/__init__.py:4: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is...

> We have a couple of janky tests that compare console output to a reference that will be tricky to work around Correction: Quite easy to work around. Just learned...

I entirely agree this should be fixed. We've also discussed the specific fix you suggest (based on a previous warning about this) and agree that's the way to go.

I'm not sure what relation this has to VARC purposes, given the almost-always-sufficient default value. The CFF2 FontMatrix is much more restrictive than the CFF FontMatrix, which suggests that someone...

OK, so I guess the question is what the concern is. I could try to track down why things wound up this way in the spec, but (naively) it seems...

I see, you would prefer to unlink those two parameters.

I suspect this is something I've seen before and relates to compiler optimization. If you're in a position to you might be able to confirm this by building e.g. `tx`...

Well, on the one hand blaming one's compiler is almost always a recipe for getting egg on one's face. But on the other hand it sure seems like almost everything...

Would you be willing to add a note to AUR pointing to this issue and suggesting a different build strategy for the time being? (Presumably either debug or a different...