連結 http://stackoverflow.com/questions/31725681/how-to-setup-clion-with-portable-clang-on-ubuntu
I got the answer from CLion blog and it works and here it goes.
To provide CMake compiler paths, go to Settings | Build, Execution, Deployment | CMake and pass as CMake options:
-D CMAKE_C_COMPILER=
-D CMAKE_CXX_COMPILER=In case CMake fails to find some path to clang libs, etc. you can also set there environment variables:
CC=/usr/bin/clang
CXX=/usr/bin/clang++