Merge ssize_t branch.
diff --git a/Objects/iterobject.c b/Objects/iterobject.c
index 90dc3f0..6f7c57e 100644
--- a/Objects/iterobject.c
+++ b/Objects/iterobject.c
@@ -74,7 +74,7 @@
 static PyObject *
 iter_len(seqiterobject *it)
 {
-	int seqsize, len;
+	Py_ssize_t seqsize, len;
 
 	if (it->it_seq) {
 		seqsize = PySequence_Size(it->it_seq);