reset CMAKE_REQUIRED_LIBRARIES to empty list after check
reset CMAKE_REQUIRED_LIBRARIES to empty list after check

ebfe/libmill,dailypips/libmill,sustrik/libmill,lsm/libmill,linearregression/libmill,lsm/libmill,sustrik/libmill,jimjag/mill,jimjag/mill,reqshark/libmill,linearregression/libmill,reqshark/libmill,jimjag/mill,reqshark/libmill,dailypips/libmill,ebfe/libmill,sustrik/libmill,dailypips/libmill,lsm/libmill,linearregression/libmill,ebfe/libmill