[CMake] /MP[num_threads] not working in Cmake 3.0.0

[Brad King]

On Thu, Jul 31, 2014 at 10:29 AM, Jaime Armendariz wrote:
> If I add "/MP4" for example in my${CMAKE_CXX_FLAGS_RELEASE}, cmake converts
> it to "/MP" that means "all cores available". 
[snip]
> Cmake  3.0.0 and 2.8.12.2
> Windows 7 64 bits
> Visual Studio 2013 / Visual Studio 2010 SP1

With CMake 3.0.0 on VS 2013 I tried that and got:

      <MultiProcessorCompilation>true</MultiProcessorCompilation>
      <ProcessorNumber>4</ProcessorNumber>

in the .vcxproj file.  The compilation command-line then had "/MP4"
as expected.

-Brad