New comment by tornaria on void-packages repository

https://github.com/void-linux/void-packages/pull/29783#issuecomment-812682362

Comment:
I think instead of `--disable-pclmul` we really need `--disable-sse3`?

In fact, baseline `x86_64` has only up to sse2 (see e.g. https://en.wikipedia.org/wiki/X86-64#Microarchitecture_Levels).

Eventually, it would be nice to discuss a way to be able to offer binaries compiled with more features, as there are huge differences to be made for some math software. E.g. gf2x testsuite runs 2-3x faster for me with pclmul enabled than without it.

For the moment what I'm doing is adding an option "native" (disabled by default) which allows one to compile for the build machine.

To catch some of these I'm compiling on a cascade-lake cpu, then runing make check on a nehalem cpu (however, the nehalem already has sse4.2).