Linker issues are always tricky...

I understand that there is no problem within libpython, so the questions below refer to extension modules. I am asking them from the point of view of somebody writing Python extension modules who is clueless about Cygwin.

So you're saying that it's not allowed to refer to &PyType_Type in a static struct? But it is OK to refer to &PyType_Type in code?

I assume that there is nothing special about PyType_Type and that this apply for all variables. Are functions OK? For example, in functools.c I see

static PyGetSetDef partial_getsetlist[] = {
    {"__dict__", PyObject_GenericGetDict, PyObject_GenericSetDict},
    {NULL} /* Sentinel */
};

What makes functions different from variables? Aren't they essentially just pointers?