[CMake] Why is ${OUTPUT} empty when using msvc

[Brad King]

Christian Ehrlicher wrote:
> can sombody tell me why ${OUTPUT} is empty?
> I don't see any reason why it should not work with msvc. Can sombody
> give me a hint where to look for in the sourcecode?

This is a problem with VCExpress 2005 only because the tool itself does 
not produce output.  CMake is capturing all the output the native build 
tool produces...which is nothing :(

We're looking into a work-around.

-Brad