GNU bug report logs - #53538
27.2; default-major-mode no longer honored

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: "George L. Roman" <glroman <at> gmail.com>
To: <bug-gnu-emacs <at> gnu.org>
Subject: 27.2; default-major-mode no longer honored
Date: Tue, 25 Jan 2022 19:32:04 -0500

    % emacs -Q
    C-x b *scratch*
    (setq default-major-mode "text-mode")
    C-x b whatever
    ; Observe "fundamental" mode
    C-f /tmp/foo
    ; Observe "fundamental" mode

    This used to work in 25.1; fails in 26.1, 27.1, and 27.2.


In GNU Emacs 26.1 (build 1, x86_64-redhat-linux-gnu, GTK+ Version 3.22.30)
 of 2021-08-09 built on x86-01.mbox.centos.org
Windowing system distributor 'Colin Harrison', version 11.0.70700033
Recent messages:
GNU Emacs 26.1 (build 1, x86_64-redhat-linux-gnu, GTK+ Version 3.22.30) of
2021-08-09
Quit
Mark saved where search started
Type "q" in help window to restore its previous buffer.
(New file)
Saving file /tmp/foo...
Wrote /tmp/foo
QKilled /tmp/foo
GNU Emacs 26.1 (build 1, x86_64-redhat-linux-gnu, GTK+ Version 3.22.30) of
2021-08-09
Mark activated

Configured using:
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Load-path shadows:
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Message #8 received at 53538 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: "George L. Roman" <glroman <at> gmail.com>
Cc: 53538 <at> debbugs.gnu.org
Subject: Re: bug#53538: 27.2; default-major-mode no longer honored
Date: Wed, 26 Jan 2022 05:39:38 +0200

> From: "George L. Roman" <glroman <at> gmail.com>
> Date: Tue, 25 Jan 2022 19:32:04 -0500
> 
>     % emacs -Q
>     C-x b *scratch*
>     (setq default-major-mode "text-mode")
>     C-x b whatever
>     ; Observe "fundamental" mode
>     C-f /tmp/foo
>     ; Observe "fundamental" mode
> 
>     This used to work in 25.1; fails in 26.1, 27.1, and 27.2.

From NEWS of Emacs 26:

  ** Some obsolete functions, variables, and faces have been removed:
  [...]
  *** All the default-FOO variables that hold the default value of the
  FOO variable.  Use 'default-value' and 'setq-default' to access and
  change FOO, respectively.  The exhaustive list of removed variables is:
  'default-mode-line-format', 'default-header-line-format',
  'default-line-spacing', 'default-abbrev-mode', 'default-ctl-arrow',
  'default-truncate-lines', 'default-left-margin', 'default-tab-width',
  'default-case-fold-search', 'default-left-margin-width',
  'default-right-margin-width', 'default-left-fringe-width',
  'default-right-fringe-width', 'default-fringes-outside-margins',
  'default-scroll-bar-width', 'default-vertical-scroll-bar',
  'default-indicate-empty-lines', 'default-indicate-buffer-boundaries',
  'default-fringe-indicator-alist', 'default-fringe-cursor-alist',
  'default-scroll-up-aggressively', 'default-scroll-down-aggressively',
  'default-fill-column', 'default-cursor-type',
  'default-cursor-in-non-selected-windows',
  'default-buffer-file-coding-system', 'default-major-mode', and
  'default-enable-multibyte-characters'.

So you should use setq-default instead.

Message #11 received at 53538 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: "George L. Roman" <glroman <at> gmail.com>, 53538 <at> debbugs.gnu.org
Subject: Re: bug#53538: 27.2; default-major-mode no longer honored
Date: Wed, 26 Jan 2022 16:31:59 +0100

Eli Zaretskii <eliz <at> gnu.org> writes:

> So you should use setq-default instead.

So this isn't a bug, and I'm therefore closing this bug report.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

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