bug#10772: 24.0.93; [patch] Convert tcl-auto-fill-mode to use define-minor-mode

[Xue Fuqiao <xfq@gnu.org>]

Stefan Monnier <monnier@iro.umontreal.ca> writes:
>>> Tcl is not special wrt to filling and comments, AFAIK, so tcl-mode
>>> should simply use the default auto-fill functionality without any
>>> local tweaks.
>> Right, and that's exactly what my patch does.
>
> No, it preserves the "special behavior", just changing the
> implementation to rely on the generic auto-fill code.  My point is that
> the special behavior is just a preference of the mode's author and hence
> doesn't belong in the major mode's definition.

Ah, I see.  So here's the new patch (without ChangeLog/NEWS):

=== modified file 'lisp/progmodes/tcl.el'
--- lisp/progmodes/tcl.el	2014-02-10 01:34:22 +0000
+++ lisp/progmodes/tcl.el	2014-02-26 22:39:06 +0000
@@ -1410,13 +1410,8 @@
 		     tcl-application file tcl-command-switches)
 	(if and-go (switch-to-tcl t)))))))
 
-(defun tcl-auto-fill-mode (&optional arg)
-  "Like `auto-fill-mode', but sets `comment-auto-fill-only-comments'."
-  (interactive "P")
-  (auto-fill-mode arg)
-  (if auto-fill-function
-      (set (make-local-variable 'comment-auto-fill-only-comments) t)
-    (kill-local-variable 'comment-auto-fill-only-comments)))
+(define-obsolete-function-alias tcl-auto-fill-mode
+  auto-fill-mode "24.4")
 
 (defun tcl-electric-hash (&optional count)
   "Insert a `#' and quote if it does not start a real comment.

-- 
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