From 12315fd0613c079f2ee82f6aaacca85b667001e1 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Martin=20v=2E=20L=C3=B6wis?= <martin@v.loewis.de>
Date: Thu, 26 Sep 2002 16:41:10 +0000
Subject: [PATCH] Disable big charsets in UCS-4 builds. Works around #599377.

---
 Lib/sre_compile.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Lib/sre_compile.py b/Lib/sre_compile.py
index 1175f6731820..424604bf8243 100644
--- a/Lib/sre_compile.py
+++ b/Lib/sre_compile.py
@@ -188,6 +188,9 @@ def _optimize_charset(charset, fixup):
                 # XXX: could append to charmap tail
                 return charset # cannot compress
     except IndexError:
+        if sys.maxunicode != 65535:
+            # XXX: big charsets don't work in UCS-4 builds
+            return charset
         # character set contains unicode characters
         return _optimize_unicode(charset, fixup)
     # compress character map
-- 
2.47.3