GNU bug report logs - #13125
Fix permissions bugs with setgid directories etc.

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From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Michael Albinus <michael.albinus <at> gmx.de>
Cc: 13125 <at> debbugs.gnu.org
Subject: bug#13125: Fix permissions bugs with setgid directories etc.
Date: Sun, 09 Dec 2012 00:56:48 -0800

On 12/09/2012 12:32 AM, Michael Albinus wrote:
> the change must be backwards compatible for older
> Emacs versions as well as for XEmacs

Thanks for mentioning that.
The following further patch should suffice:

=== modified file 'lisp/net/tramp-sh.el'
--- lisp/net/tramp-sh.el	2012-12-09 00:50:02 +0000
+++ lisp/net/tramp-sh.el	2012-12-09 08:53:55 +0000
@@ -5024,8 +5024,8 @@
   (if (equal id-format 'integer) (user-uid) (user-login-name)))
 
 (defun tramp-get-local-gid (id-format)
-  (if (equal id-format 'integer)
-      (group-gid)
+  (if (and (fboundp 'group-gid) (equal id-format 'integer))
+      (tramp-compat-funcall 'group-gid)
     (nth 3 (tramp-compat-file-attributes "~/" id-format))))
 
 ;; Some predefined connection properties.

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