[CMake] Windows Ninja cmcldeps.exe too verbose

[Nils Gladitz]

I'm trying the Ninja generator on windows with CMake 2.8.9.

When starting a build with "ninja" my console is flooded with messages 
of the form:
"Note: including file: [...]" which I am guessing are generated by 
cmcldeps(?).

It feels like all that output is slowing down the build considerably 
since the windows console is relatively slow.
Of course it also makes actually relevant output difficult to spot.

Is there some way to turn the messages off?

Thanks in advance
Nils