Re: Package cl is deprecated

[Thibaut Verron]

On 28/07/2021 15:03, Hongyi Zhao wrote:
> On Wed, Jul 28, 2021 at 6:04 PM Jean-Christophe Helary
> <lists@traduction-libre.org> wrote:
> > > On Jul 28, 2021, at 18:54, Thibaut Verron <thibaut.verron@gmail.com> wrote:
> > >
> > > On 28/07/2021 11:46, Hongyi Zhao wrote:
> > > > On Wed, Jul 28, 2021 at 5:33 PM Thibaut Verron <thibaut.verron@gmail.com> wrote:
> > > > > On 28/07/2021 11:23, Hongyi Zhao wrote:
> > > > > > When I start Emacs, I always notice the following message in *Messages* buffer:
> > > > > >
> > > > > > Package cl is deprecated
> > > > > >
> > > > > > Any hints for eliminating it?
> > > > > If you have (require 'cl) somewhere in your init file, replace it with
> > > > > (require 'cl-lib). You might need to change some macro calls to use
> > > > > cl-<name> instead of <name>.
> > > > $ egrep 'require[ ]*'\''cl' .emacs.d/init.el
> > > > (require 'cl-lib)
> > > Then it's from a package and you need to identify it.
> > >
> > > You can try (untested):
> > >
> > > find .emacs.d/ -name "*.el" -exec grep "(require 'cl)" {} \;
> > find .emacs.d/ -name "*.el" -exec grep "(require 'cl)" {} \; -print
> There are so many matches:
>
> $ find .emacs.d/ -name "*.el" -exec grep -q "(require 'cl)" {} \;
> -print 2>/dev/null | sort -u | wc -l
> 40
>
> So this method is basically useless for finding the problem.

I just tried it, indeed quite a few packages contain some form of 
(require 'cl) as a backward-compatibility tool (52 matches in my case). 
Most of those are test files which are never loaded in a normal emacs 
session.

To narrow the search, you can use egrep -q "^\(require 'cl\)" instead. 
In my .emacs, the matches go from 52 to 15. Interestingly enough, 
exactly one of them is loaded at init time (key-combo.el), without any 
warning.

[Btw I don't think that sort -u is useful in your command line, find 
should not return the same file twice. You might also want to add -type 
f to the find call, to avoid errors with packages with .el in the name 
(such as ansi.el or prescient.el).]

Good luck,

Thibaut