New comment by pullmoll on void-packages repository

https://github.com/void-linux/void-packages/pull/24258#issuecomment-761187783

Comment:
In that case the `libiberty.h` should be removed from `gcc`. It may be just because of this header that packages are trying to link against `libiberty`.  I haven't verified that yet and am just reporting issues with the gcc 10 upate I find.