From 5061f7bdde6495848f96a3823f3c5be8b3b7b500 Mon Sep 17 00:00:00 2001
From: Eric Soroos <eric-github@soroos.net>
Date: Tue, 20 Jan 2015 15:00:58 -0800
Subject: [PATCH] Turn off zip-safe flag for debug builds

---
 setup.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/setup.py b/setup.py
index 90687d51f..7262db39e 100644
--- a/setup.py
+++ b/setup.py
@@ -722,6 +722,9 @@ class pil_build_ext(build_ext):
             os.unlink(tmpfile)
 
 
+def debug_build():
+    return hasattr(sys, 'gettotalrefcount')
+
 setup(
     name=NAME,
     version=PILLOW_VERSION,
@@ -754,6 +757,6 @@ setup(
     test_suite='PIL.tests',
     keywords=["Imaging", ],
     license='Standard PIL License',
-    zip_safe=True,
+    zip_safe= not debug_build(),
 )
 # End of file