Installation issue on Mac OS Big Sur

[ghost]

Hi,

I'm having an issue installing pyaftan on an Intel Mac OS Big Sur. I'm using python 3.9 and gfortran from the command line tools and I installed fftw via brew. Here is the traceback:

    lib_opts = gen_lib_options(self, library_dirs, runtime_library_dirs,
  File "/Users/jamesasmith/miniconda3/lib/python3.9/site-packages/numpy/distutils/ccompiler.py", line 773, in gen_lib_options
    r = _distutils_gen_lib_options(compiler, library_dirs,
  File "/Users/jamesasmith/miniconda3/lib/python3.9/site-packages/setuptools/_distutils/ccompiler.py", line 1191, in gen_lib_options
    lib_file = compiler.find_library_file([lib_dir], lib_name)
  File "/Users/jamesasmith/miniconda3/lib/python3.9/site-packages/setuptools/_distutils/ccompiler.py", line 887, in find_library_file
    raise NotImplementedError
NotImplementedError```

If you have seen this error and know how to fix it, please let me know. Maybe I'm using an incompatible version of python?

Thanks.