Remove nnml-retrieve-groups that is unnecessary and somewhat problematic

[gnus] / lisp / nnoo.el

diff --git a/lisp/nnoo.el b/lisp/nnoo.el
index 7a66b4c..8fe83a4 100644 (file)
--- a/lisp/nnoo.el
+++ b/lisp/nnoo.el
@@ -1,17 +1,16 @@
 ;;; nnoo.el --- OO Gnus Backends
 
-;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
-;;   2004, 2005, 2006 Free Software Foundation, Inc.
+;; Copyright (C) 1996-2015 Free Software Foundation, Inc.
 
 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
 ;; Keywords: news
 
 ;; This file is part of GNU Emacs.
 
-;; GNU Emacs is free software; you can redistribute it and/or modify
+;; GNU Emacs is free software: you can redistribute it and/or modify
 ;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation; either version 2, or (at your option)
-;; any later version.
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
 
 ;; GNU Emacs is distributed in the hope that it will be useful,
 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -19,9 +18,7 @@
 ;; GNU General Public License for more details.
 
 ;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING.  If not, write to the
-;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-;; Boston, MA 02110-1301, USA.
+;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
 
 ;;; Commentary:
 
@@ -61,12 +58,16 @@
 
 (defmacro nnoo-declare (backend &rest parents)
   `(eval-and-compile
-     (push (list ',backend
-                (mapcar (lambda (p) (list p)) ',parents)
-                nil nil)
-          nnoo-definition-alist)
-     (push (list ',backend "*internal-non-initialized-backend*")
-          nnoo-state-alist)))
+     (if (assq ',backend nnoo-definition-alist)
+        (setcar (cdr (assq ',backend nnoo-definition-alist))
+                (mapcar 'list ',parents))
+       (push (list ',backend
+                  (mapcar 'list ',parents)
+                  nil nil)
+            nnoo-definition-alist))
+     (unless (assq ',backend nnoo-state-alist)
+       (push (list ',backend "*internal-non-initialized-backend*")
+            nnoo-state-alist))))
 (put 'nnoo-declare 'lisp-indent-function 1)
 
 (defun nnoo-parents (backend)
@@ -320,5 +321,4 @@ All functions will return nil and report an error."
 
 (provide 'nnoo)
 
-;;; arch-tag: 0196b5ed-6f34-4778-a455-73a971f837e7
 ;;; nnoo.el ends here