[CMake] Progress reporting in CMake

[Denis Scherbakov]

I see progress jumping even on freshly CMake prepared, but never compiled tree.

So is this a bug or a feature?

Denis


> Works pretty good for me (~120 .c's).  I notice jumps
> when building
> semi-up-to-date trees (ie, only some of the source files
> have changed)
> which seems reasonable.
> 
> Of course maybe I'm not looking for perfection, but
> rather a general
> idea of progress which it seems to provide in spades.