New comment by ericonr on void-packages repository

https://github.com/void-linux/void-packages/pull/34563#issuecomment-995392627

Comment:
@Vaelatern fwiw this isn't inhibiting functionality, it's just a test for the mmap issues they had with file seeking. Disabling or fixing the tests should be equivalent, given that almost no one runs them :P 

I'm looking into the musl side to see if we can define the constants, otherwise I can open an issue with ZFS upstream.