Mesa-Amber 21.3.9-1+fnx1

(Debian Bookworm x86 / Intel 855GM)

https://debianforum.de/forum/viewtopic.php?t=188731

git clone https://salsa.debian.org/scc/mesa-amber.git
cd mesa-amber
git checkout fnx/debian-unstable
sudo mk-build-deps --install debian/control
git clean -df
gbp buildpackage --git-ignore-branch --git-upstream-tag=origin/upstream-unstable -us -uc