There's a merged pull request on the void-packages repository

mesa: update to 19.3.1.
https://github.com/void-linux/void-packages/pull/17639

Description:
Compiles:
- [x]  x86_64

- [x]  x86_64-musl

- [x]  i386

- [x] aarch64

- [x] aarch64-musl

- [x]  armv7

- [x] armv7-musl

Tested:

- [x] x86_64: Intel

- [x] x86_64-musl: Nouveau