qi-xia

following script fix it for me `brew install libffi` `ln -s $(brew --cellar libffi)/*/include/ffi.h /usr/local/include/ffi.h` `ln -s $(brew --cellar libffi)/*/include/ffitarget.h /usr/local/include/ffitarget.h` referred to this thread: https://github.com/ffi/ffi/issues/814#issuecomment-677655537