Can't install Orange: “error: command 'clang' failed with exit status 1”

Question

I am trying to install Orange on my Mac OS X 10.7.3 (Lion) and I keep getting an error when using either pip or building from source. First, I was getting an error that read

Answer 1

I had to do the following to fix the error on Mac OS Catalina. You can run it in the command line and also put into your bash_profile.

export CC=gcc
export CXX=clang