Bug#1034571: Temporary solution

[Fierelier OwO <fierelier@gmail.com>]

For those interested in a temporary, botched, solution, here is a
script (run as root):
#!/usr/bin/env bash
set -e
mkdir -p "/tmp/i965"
mkdir -p "/usr/lib/i386-linux-gnu"
mkdir -p "/usr/lib/x86_64-linux-gnu"
curl "http://ftp.us.debian.org/debian/pool/main/m/mesa/libgl1-mesa-dri_20.3.5-1_i386.deb";
| dpkg-deb -x - "/tmp/i965"
cp "/tmp/i965/usr/lib/i386-linux-gnu/dri/i915_dri.so"
"/usr/lib/i386-linux-gnu/dri/i965_dri.so"
curl "http://ftp.us.debian.org/debian/pool/main/m/mesa/libgl1-mesa-dri_20.3.5-1_amd64.deb";
| dpkg-deb -x - "/tmp/i965"
cp "/tmp/i965/usr/lib/x86_64-linux-gnu/dri/i915_dri.so"
"/usr/lib/x86_64-linux-gnu/dri/i965_dri.so"
rm -rf "/tmp/i965"

This will install the old i915 driver, with i965 support. To use it,
do 'MESA_LOADER_DRIVER_OVERRIDE=i965 your-application'.