fix compilation issues on windows (got this error from 0.16 already)

Cython/Utility/CythonFunction.c

@@ -438,7 +438,10 @@ static PyObject * __Pyx_CyFunction_Call(PyObject *func, PyObject *arg, PyObject
     return NULL;
 }
 #else
-#define __Pyx_CyFunction_Call PyCFunction_Call
+static PyObject * __PyCFunction_Call(PyObject *func, PyObject *arg, PyObject *kw) {
+	return PyCFunction_Call(func, arg, kw);
+}
+#define __Pyx_CyFunction_Call __PyCFunction_Call
 #endif
 
 static PyTypeObject __pyx_CyFunctionType_type = {