Issue #3274: Use a less common identifier for the temporary variable
in Py_CLEAR().
diff --git a/Include/object.h b/Include/object.h
index 59f3b9e..e447769 100644
--- a/Include/object.h
+++ b/Include/object.h
@@ -773,9 +773,9 @@
 #define Py_CLEAR(op)				\
         do {                            	\
                 if (op) {			\
-                        PyObject *tmp = (PyObject *)(op);	\
+                        PyObject *_py_tmp = (PyObject *)(op);	\
                         (op) = NULL;		\
-                        Py_DECREF(tmp);		\
+                        Py_DECREF(_py_tmp);	\
                 }				\
         } while (0)