[CMake] Portable "treat warnings as errors"?

[Brad King]

Kedzierski, Artur CIV NAVSURFWARCENDIV CORONA wrote:
> 	I thought about doing it this way. However, then I thought
> that there might be some portable way of doing that which would save me
> all the IF/ENDIF's. Sounds like something relatively easy to implement.
> Should I add that to CMake's bug tracker?

Yes, please add it there.  If you search it you might be able to find
one already and add yourself as a CC.

-Brad