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Suppress noisy "missing lexical-binding cookie" warnings on Emacs 31 #896

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Suppress noisy "missing lexical-binding cookie" warnings on Emacs 31 #896

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a309275
Suppress missing lexical binding cookie warning on Emacs 31
nnamdi91 Aug 30, 2026
5f8c5d5
Suppress specific warning for Emacs startup
nnamdi91 Aug 30, 2026
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9 changes: 9 additions & 0 deletions early-init.el
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,15 @@

(setq package-enable-at-startup nil)

;; Emacs 31 added a startup warning for any plain .el source file that lacks
;; a `lexical-binding' cookie. It fires for several bundled packages' (often
;; auto-generated) autoloads files -- e.g. sly-macrostep, org-pomodoro,
;; elm-mode, purescript-mode.
;; Suppress just this specific warning type so a stock Emacs 31 startup stays
;; quiet, without hiding other `files'-category warnings/errors.
(require 'warnings)
(add-to-list 'warning-suppress-log-types '(files missing-lexbind-cookie))

;; So we can detect this having been loaded
(provide 'early-init)

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