From 3223dd5c223d24706eb20fa1a46d6057dbdc826c Mon Sep 17 00:00:00 2001
From: Raymond Hettinger <python@rcn.com>
Date: Fri, 26 Jul 2013 23:14:22 -0700
Subject: Assertions key off NDEBUG

---
 Modules/_collectionsmodule.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Modules/_collectionsmodule.c b/Modules/_collectionsmodule.c
index 3ff1d1f..1f583b8 100644
--- a/Modules/_collectionsmodule.c
+++ b/Modules/_collectionsmodule.c
@@ -61,7 +61,7 @@ typedef struct BLOCK {
  * block is freed leaving another existing block as the new endpoint.
  */
 
-#ifdef Py_DEBUG
+#ifndef NDEBUG
 #define MARK_END(link)  link = NULL;
 #define CHECK_END(link) assert(link == NULL);
 #define CHECK_NOT_END(link) assert(link != NULL);
-- 
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