New comment by ackalker on void-packages repository

https://github.com/void-linux/void-packages/issues/27965#issuecomment-766596907

Comment:
I've tested passing `--datadir=<absolute path>` to `configure` in a Docker test build, but that doesn't appear to work: the `filename` attributes in the descriptor files do get the full path, but they are missing the initial `/`.
I believe this needs to be fixed upstream, so I have created a bug report about this issue: https://bugs.launchpad.net/qemu/+bug/1913012