[CMake] Obtaining improved GNU make performance on Makefiles generated by cmake

[Bill Hoffman]

Clinton Stimpson wrote:

> I was getting better numbers than that with parallel builds (is that 
> expected?).
> A plain make was a touch faster, and make pqCore was almost 2x as fast.
> 

Yes, parallel builds should be faster, as the checks for some targets 
can be done in parallel.  I was just trying show the worst case and get 
the amount of time make spends doing nothing but checking times.  Of 
course if it can do nothing in parallel it will be that much faster at 
doing nothing... :)


-Bill