Re: Package cl is deprecated

[Eli Zaretskii]

> From: Hongyi Zhao <hongyi.zhao@gmail.com>
> Date: Wed, 28 Jul 2021 21:41:03 +0800
> Cc: Jean-Christophe Helary <lists@traduction-libre.org>,
>  help-gnu-emacs <help-gnu-emacs@gnu.org>,
>  Thibaut Verron <thibaut.verron@gmail.com>
> 
> > (debug-on-message "Package cl is deprecated")
> 
> I tried this method, but meet the following warning:
> 
> Warning (initialization): An error occurred while loading
> ‘/home/werner/.emacs.d/init.el’:
> 
> Symbol's function definition is void: debug-on-message

debug-on-message is a variable, not a function.

> > Ref.
> >
> > (Info-index "debug-on-message")
> 
> `M-: (Info-index "debug-on-message") RET':

This only works in a buffer that shows the Emacs Lisp Reference manual
in Info mode.