There is an updated pull request by q66 against master on the void-packages repository

https://github.com/void-ppc/void-packages gcc92
https://github.com/void-linux/void-packages/pull/14289

gcc: update to 9.2.0 and enable gcc-go on musl + go and objc/objc++ on cross targets
This updates `gcc` to 9.2.0 and while doing that, enables `gcc-go` on `musl`. It also enables `go`, `objc` and `objc++` support in crosstoolchains, allowing us to also enable them for cross targets.

Crosstoolchains updates:

- [x] aarch64
- [x] aarch64-musl
- [ ] armv5tel
- [ ] armv5tel-musl
- [ ] armv6l
- [ ] armv6l-musl
- [ ] armv7l
- [ ] armv7l-musl
- [ ] i686
- [ ] i686-musl
- [ ] mips-musl
- [ ] mipshf-musl
- [ ] mipsel-musl
- [ ] mipselhf-musl
- [ ] ppc64le
- [ ] ppc64le-musl
- [ ] ppc64
- [ ] ppc64-musl
- [ ] ppc
- [ ] ppc-musl
- [ ] x86_64-musl

Testing:

- [x] ppc64le
- [x] ppc64le-musl
- [x] ppc64
- [ ] ppc64-musl
- [ ] ppc
- [ ] ppc-musl
- [ ] x86_64
- [ ] x86_64-musl
- [x] aarch64 (build)
- [x] aarch64-musl (build)
- [ ] armv7l (build)

A patch file from https://github.com/void-linux/void-packages/pull/14289.patch is attached