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
Preliminary pull request. Currently building and testing. `gcc-go` for `musl` is now enabled, but only for non-cross systems; cross would need this enabled in the crosstoolchains. We could maybe use this opportunity to also enable Objective-C in the crosstoolchains, or we could leave them as is for now.

Crosstoolchains updates:

- [x] aarch64
- [x] aarch64-musl
- [ ] armv5tel
- [ ] armv5tel-musl
- [ ] armv6l
- [ ] armv6l-musl
- [ ] armv7l
- [ ] armv7l-musl
- [ ] i686
- [ ] i686-musl
- [ ] mips
- [ ] mips-musl
- [ ] mipsel
- [ ] mipsel-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