Installation issues Mac

[ne3x7]

Hello. I am trying to install scikits.odes on Mac OS 10.14. I am using Python 3.6 and 3.7 and SUNDIALS 3.1.1.

Both when using pip install and python setup.py install after cloning, I run into

/usr/local/bin/gfortran [... lots of linking] -lgfortran -o build/lib.macosx-10.9-x86_64-3.7/scikits/odes/ddaspk.cpython-37m-darwin.so
  Undefined symbols for architecture x86_64:
    "_PyArg_ParseTupleAndKeywords", referenced from:
        _f2py_rout_ddaspk_ddaspk in ddaspkmodule.o
    [... more stuff like this]
    "__Py_NoneStruct", referenced from:
        _f2py_rout_ddaspk_ddaspk in ddaspkmodule.o
        _cb_res_in_ddaspk__user__routines in ddaspkmodule.o
        _create_cb_arglist in ddaspkmodule.o
        _cb_jac_in_ddaspk__user__routines in ddaspkmodule.o
        _fortran_getattr in fortranobject.o
        _fortran_setattr in fortranobject.o
        _array_from_pyobj in fortranobject.o
        ...
    "_main", referenced from:
       implicit entry/start for main executable
  ld: symbol(s) not found for architecture x86_64

and then

error: Command "/usr/local/bin/gfortran [... lots of linking] -lgfortran -o build/lib.macosx-10.9-x86_64-3.7/scikits/odes/ddaspk.cpython-37m-darwin.so" failed with exit status 1

Could you please guide me how to resolve this problem?