CMake shouldn't be complaining about the offending lines in CMakeLists.txt, so something is off.
Try deleting your "build" directory and make a new one, then run CMake again. Sometimes CMake won't register changes to the CMakeLists.txt (or at least you need to do something to reset it). Though there's probably a simpler method, the sure-fire way is to wipeout your build directory and start fresh.
Try deleting your "build" directory and make a new one, then run CMake again. Sometimes CMake won't register changes to the CMakeLists.txt (or at least you need to do something to reset it). Though there's probably a simpler method, the sure-fire way is to wipeout your build directory and start fresh.