g++ installation on mac.

I've made network on Jupiter and then tried to run network on PyCham and run into an issue:

WARNING (theano.configdefaults): Only clang++ is supported. With g++, we end up with strange g++/OSX bugs.
WARNING (theano.configdefaults): g++ not detected ! Theano will be unable to execute optimized C-implementations (for both CPU and GPU) and will default to Python implementations. Performance will be severely degraded. To remove this warning, set Theano flags cxx to an empty string.

What could you reccomend me to do? I tried to instal via terminal, but nothing worked.