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I'm using Emacs 29.0.60

If I open emacs -q, open a Emacs Lisp buffer with FlyMake enabled and type this:

;;; init.el --- summary

;;; Commentary:

;;; Code:

(setq var1 2)
(customize-set-variable var2 2)
(setopt var3 2)

(provide 'init)
;;; init.el ends here

FlyMake will give me only two warnings:

7   6 warning  e-f-b-c  assignment to free variable ‘var1’
8  24 warning  e-f-b-c  reference to free variable ‘var2’

Why setopt is not underlined here? I know it's a new macro introduced in Emacs 29 but I wonder if it is intended to be like this or the linter is just misbehaving here.

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  • 1
    You might get a useful answer here. Otherwise, consider M-x report-emacs-bug. Emacs developers will (politely) let you know whether they think there's a problem to be fixed, etc. And if there is, they'll thank you for reporting it.
    – Drew
    Apr 15, 2023 at 20:43
  • 1
    I'm guessing that flymake does not know about setopt. Consider adding an issue on the Github repo.
    – NickD
    Apr 16, 2023 at 0:43
  • 1
    @Drew I've sent a bug report as you suggested. It seems that (setopt ...) is intended to work this way.
    – cidra
    Apr 23, 2023 at 14:24

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