[PATCH vkd3d v2 4/7] build: Make it possible to disable building the demos.

[Marvin]

Hi,

While running your changed tests on Windows, I think I found new failures.
Being a bot and all I'm not very good at pattern recognition, so I might be
wrong, but could you please double-check?

Full results can be found at:
https://testbot.winehq.org/JobDetails.pl?Key=40622

Your paranoid android.


=== debian9 (build) ===
error: patch failed: configure.ac:94
error: patch failed: configure.ac:85
Task: Patch failed to apply