This is a pip-installable version of RFMix, Local Ancestry and Admixture Inference, version 1. You also might be interested in RFMix v2 instead.
RFMix assumes that you have the openmp support enabled on your C++ compiler.
On Mac OS, you'll need g++, which can be installed via homebrew as:
brew install gcc
Afterwards, you can do:
CXX=/usr/local/bin/g++-9 pip install --no-cache-dir git+https://github.com/indraniel/rfmix.git
sudo apt-get install libomp-dev
pip install --no-cache-dir git+https://github.com/indraniel/rfmix.git