The reason for the patch is not entirely clear as it dates back to the
original addition of avahi (in 2006), and it contains no description - But
presumably it is to work around a permission issue with the address files,
similar to what is explained here:
https://bugs.launchpad.net/ubuntu/+source/avahi/+bug/83521
That particular issue got fixed by upstream in 2007 using umask(2):
https://github.com/lathiat/avahi/commit/
747f75372063371865bf5fc9857982defcffdca4
So the patch isn't needed any more and can be dropped.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
+++ /dev/null
---- avahi-0.6.14/avahi-autoipd/main.c.cls 2006-09-13 12:49:45.000000000 -0700
-+++ avahi-0.6.14/avahi-autoipd/main.c 2006-09-25 20:34:10.000000000 -0700
-@@ -239,7 +239,7 @@
-
- fprintf(f, "%s\n", inet_ntop(AF_INET, &addr, buf, sizeof (buf)));
- fclose(f);
--
-+ chmod(fn, S_IRUSR|S_IWUSR);
- return 0;
-
- fail: