Please find refreshed a patch by Andrew Cook [1], in merge request [2]. I have build the package on amd64 and i386, and confirmed that it works with gallium nine, e.g., [3].
[1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=781078 [2] https://salsa.debian.org/xorg-team/lib/mesa/merge_requests/3 [3] https://launchpad.net/~commendsarnex/+archive/ubuntu/winedri3
