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From: Stefan Monnier <monnier@iro.umontreal.ca>
Newsgroups: gmane.emacs.help
Subject: Re: Applying Flymake
Date: Thu, 16 Apr 2020 13:25:18 -0400
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> I was recommended to use Flycheck (on Melpa) and found this checker
> quite useful.  But now I realised that there's an in-built checker
> Flymake!  And I'd like to "check" this mode applying it to all elisp
> files but I can't figure out how to do this automatically.

    (add-hook 'emacs-lisp-mode-hook #'flymake-mode)

should do the trick


        Stefan