There is a new pull request by q66 against master on the void-packages repository

https://github.com/void-power/void-packages gcc-sed
https://github.com/void-linux/void-packages/pull/12735

gcc, cross-powerpc*-musl: remove some harmless but leftover sed
This was added in 8.3 to mitigate an incorrect macro being defined on musl. However, this code was reworked and fixed upstream in the meantime, so remove that. It's harmless because it doesn't match anything anymore, but better not keep it around.

A patch file from https://github.com/void-linux/void-packages/pull/12735.patch is attached