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

https://github.com/pullmoll/void-packages gcc10-fcommon
https://github.com/void-linux/void-packages/pull/24334

Packages which need -fcommon for gcc10
Packages I found doing `xbps-fbulk` for `x86_64`.
See #24258

A patch file from https://github.com/void-linux/void-packages/pull/24334.patch is attached