From 6f81501efd3370b8aa1d05536bda68aba7403950 Mon Sep 17 00:00:00 2001
From: Marcus Brinkmann <m.brinkmann@semantics.de>
Date: Tue, 21 Jun 2016 13:41:26 +0200
Subject: [PATCH] Fix integer overflow on ILP32 systems (32-bit Linux).

---
 _imagingcms.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/_imagingcms.c b/_imagingcms.c
index a6f76eec8d8..a05e5cdc690 100644
--- a/_imagingcms.c
+++ b/_imagingcms.c
@@ -983,12 +983,9 @@ cms_profile_getattr_attributes(CmsProfileObject* self, void* closure)
 {
     cmsUInt64Number attr;
     cmsGetHeaderAttributes(self->profile, &attr);
-#ifdef _WIN32
-    // Windows is weird this way.
-    return PyLong_FromLongLong((long long) attr);
-#else
-    return PyInt_FromLong((long) attr);
-#endif
+    /* This works just as well on Windows (LLP64), 32-bit Linux
+       (ILP32) and 64-bit Linux (LP64) systems.  */
+    return PyLong_FromUnsignedLongLong((unsigned long long) attr);
 }
 
 static PyObject*