[CMake] elseif request

[Brad King]

Alan W. Irwin wrote:
> So far all but one of those who responded to the discussion are in support
> of the idea, but it is also fair to say that only a handful of subscribers
> to this list have responded yet.
> 
> I am particularly interested in the opinion of Bill Hoffman, Brad King, and
> other developers of CMake since they are the ones who would have to do the
> implementation.  If they are reasonably positive about the idea, I will
> write this up as a wish-list bug report to give a clear point of reference
> for the change.

This is a reasonable request.  I'll have to discuss it with the other
developers but it is at least worth putting in the bug tracker.  Please
put in the request.  At least then the final discussion will be
documented in an easy-to-reference place.

Thanks,
-Brad