GMAP_DOMETHODS(GMAP_METHDECL, GMAP_KWMETHDECL)
#define GMAP_ROMETHODS GMAP_DOROMETHODS(GMAP_METH, GMAP_KWMETH)
#define GMAP_METHODS GMAP_DOMETHODS(GMAP_METH, GMAP_KWMETH)
-extern int gmap_pysize(PyObject *);
+extern Py_ssize_t gmap_pysize(PyObject *);
extern PySequenceMethods gmap_pysequence;
extern PyMethodDef gmap_pymethods[];