fix cmake bug introduced by pull request #75
fix cmake bug introduced by pull request #75

kknox/clBLAS,tingxingdong/clean,hemmingway/clBLAS,tingxingdong/clean,linan7788626/clBLAS,ghisvail/clBLAS,arrayfire/clBLAS,devfreesg/clBLAS,BenjaminCoquelle/clBLAS,TimmyLiu/clBLAS,guacamoleo/clBLAS,clMathLibraries/clBLAS,devfreesg/clBLAS,tmagomedov/clBLAS,kknox/clBLAS,clMathLibraries/clBLAS,clMathLibraries/clBLAS,hughperkins/clBLAS,BenjaminCoquelle/clBLAS,BenjaminCoquelle/clBLAS,linan7788626/clBLAS,arrayfire/clBLAS,arrayfire/clBLAS,kknox/clBLAS,hemmingway/clBLAS,tingxingdong/clean,tmagomedov/clBLAS,tmagomedov/clBLAS,TimmyLiu/clBLAS,hemmingway/clBLAS,guacamoleo/clBLAS,hughperkins/clBLAS,devfreesg/clBLAS,tingxingdong/clean,guacamoleo/clBLAS,arrayfire/clBLAS,kknox/clBLAS,ghisvail/clBLAS,hughperkins/clBLAS,tmagomedov/clBLAS,clMathLibraries/clBLAS,ghisvail/clBLAS,TimmyLiu/clBLAS,BenjaminCoquelle/clBLAS,linan7788626/clBLAS,TimmyLiu/clBLAS,devfreesg/clBLAS,guacamoleo/clBLAS,linan7788626/clBLAS,hemmingway/clBLAS,hughperkins/clBLAS,ghisvail/clBLAS