--- debian/lib/python/debian_linux/debian.py	2009-05-05 12:38:17.000000000 +0200
+++ debian/lib/python/debian_linux/debian.py	2009-04-21 23:04:35.000000000 +0200
@@ -103,6 +103,7 @@
     (?P<major>\d+\.\d+)
     \.
     \d+
+    (?:-libre\d+)?
 )
 (?:
     ~