From 2742c5ed633776acb0cef21801acad9214b87094 Mon Sep 17 00:00:00 2001
From: Thomas Wouters <thomas@python.org>
Date: Sat, 15 Apr 2006 17:33:14 +0000
Subject: [PATCH] Re-instate backward compatibility by defining Py_CLEAR if it
 isn't available.

---
 Modules/_csv.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/Modules/_csv.c b/Modules/_csv.c
index 88c72481d8..9ce53bdade 100644
--- a/Modules/_csv.c
+++ b/Modules/_csv.c
@@ -37,6 +37,20 @@ module instead.
 #		define PyMODINIT_FUNC void
 #	endif /* __cplusplus */
 #endif
+
+#ifndef Py_CLEAR
+#define Py_CLEAR(op)						\
+	do {							\
+		if (op) {					\
+			PyObject *tmp = (PyObject *)(op);	\
+			(op) = NULL;				\
+			Py_DECREF(tmp);				\
+		}						\
+	} while (0)
+#endif
+#ifndef Py_VISIT
+
+
 /* end 2.2 compatibility macros */
 
 #define IS_BASESTRING(o) \
-- 
2.50.1