Minor changes to cmake config #42

Job	Run time
Linux build (openblas)	5m 10s
Linux build (mkl)	5m 44s
Windows build openblas installed (mkl)	4m 39s
Mac build (accelerate)	1m 55s
Linux build (openblas / static)	7m 44s
Windows build (mkl)	4m 41s
Windows build (openblas)	3m 48s
Mac build (accelerate / static)	5m 12s
	38m 53s

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