Use Py_ssize_t for _Py_RefTotal.
I tried to handle Win64 properly, but please review.
diff --git a/Include/object.h b/Include/object.h
index 5db92db..2eb2b44 100644
--- a/Include/object.h
+++ b/Include/object.h
@@ -568,7 +568,7 @@
* #ifdefs (we used to do that -- it was impenetrable).
*/
#ifdef Py_REF_DEBUG
-PyAPI_DATA(long) _Py_RefTotal;
+PyAPI_DATA(Py_ssize_t) _Py_RefTotal;
PyAPI_FUNC(void) _Py_NegativeRefcount(const char *fname,
int lineno, PyObject *op);
#define _Py_INC_REFTOTAL _Py_RefTotal++