Bug#1087990: 0ad: Crashes on launch with OpenAL 1.24.0

[Antoine Le Gonidec]

I submitted the patches through Salsa:
https://salsa.debian.org/games-team/0ad/-/merge_requests/6
It builds and then runs nicely on my up-to-date Debian unstable.

I sneaked in a fix to ensure DEB_BUILD_OPTIONS=parallel=${n} is
honoured, as I needed it to ensure the package could be built on a
low-RAM system.

If you would rather have these two changes it two distincts merge
requests, I can do that (they are already in distinct commits). And if
you would like me to upload a source package to mentors, I can do that
too.