Rename _PyIter_GetBuiltin to _PyObject_GetBuiltin, and do not include it in the stable ABI.
diff --git a/Include/iterobject.h b/Include/iterobject.h
index 86abb25..f61726f 100644
--- a/Include/iterobject.h
+++ b/Include/iterobject.h
@@ -18,8 +18,6 @@
 
 PyAPI_FUNC(PyObject *) PyCallIter_New(PyObject *, PyObject *);
 
-PyAPI_FUNC(PyObject *) _PyIter_GetBuiltin(const char *iter);
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/Include/object.h b/Include/object.h
index 9b3055d..4024306 100644
--- a/Include/object.h
+++ b/Include/object.h
@@ -535,6 +535,11 @@
 _PyObject_GenericSetAttrWithDict(PyObject *, PyObject *,
                                  PyObject *, PyObject *);
 
+/* Helper to look up a builtin object */
+#ifndef Py_LIMITED_API
+PyAPI_FUNC(PyObject *)
+_PyObject_GetBuiltin(const char *name);
+#endif
 
 /* PyObject_Dir(obj) acts like Python builtins.dir(obj), returning a
    list of strings.  PyObject_Dir(NULL) is like builtins.dir(),