New comment by ericonr on void-packages repository

https://github.com/void-linux/void-packages/pull/30036#issuecomment-815275796

Comment:
The `linux5.11` template does it, for one. We chose to go with `pre_patch` there, but I think `post_extract` is equally valid.

> Well, I use it, sometimes. That's why I packaged it for myself a few years ago :-)

Ah, I guess that's reason enough to make it a system package, then ;)

Would be nice if sage released proper fully patched tarballs, though.