--- jack2-1.9.22.orig/waflib/ConfigSet.py	2023-02-02 12:04:10.000000000 +0100
+++ jack2-1.9.22/waflib/ConfigSet.py	2026-05-14 18:36:34.596872137 +0200
@@ -11,7 +11,7 @@ The values put in :py:class:`ConfigSet`
 
 import copy, re, os
 from waflib import Logs, Utils
-re_imp = re.compile('^(#)*?([^#=]*?)\ =\ (.*?)$', re.M)
+re_imp = re.compile(r'^(#)*?([^#=]*?)\ =\ (.*?)$', re.M)
 
 class ConfigSet(object):
 	"""
