i try some methods like these.But they failed.
i think you have to give the path of directory where you have installed geant4
for my case, if switch on analysis manager but i think same you can do for multi-threading.
like cmake -DWITH_ANALYSIS_USE=ON -DGeant4_DIR= /Documents/Geant4
you can give it a try. just check by doing this.
I strongly recommend to you use ccmake (cmake-curses-gui) it should give you more detailed information.