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fix: "symbol's value as variable is void: \213" error

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Some installs of Emacs do not come with byte-compiled versions of its
bundled elisp files, so when loading them, Emacs falls back to loading
its *.el.gz files. This would be fine if it were not for a  startup
optimization Doom employs, where it sets file-name-handler-alist to
nil (and by doing so, robs Emacs of the ability to read compressed
elisp). This causes "symbol's value as variable is void: \213" errors at
startup.

With this commit, Doom now disables this optimization early if it
suspects this applies to your install. But time will tell if it's early
enough.

Ref: https://mail.gnu.org/archive/html/emacs-devel/2022-08/msg00234.html
This commit is contained in:
Henrik Lissner 2022-08-08 18:52:32 +02:00
parent f0e508b52d
commit 6f1c0f7cc7
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1 changed files with 7 additions and 0 deletions
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7
lisp/cli/autoloads.el
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@ -45,6 +45,13 @@ one wants that.")
(signal 'doom-error (signal 'doom-error
(list "The installed version of Doom has changed since last 'doom sync' ran" (list "The installed version of Doom has changed since last 'doom sync' ran"
"Run 'doom sync' to bring Doom up to speed")))) "Run 'doom sync' to bring Doom up to speed"))))
;; If the bundled elisp for this Emacs install isn't byte-compiled,
;; disengage the `file-name-handler-alist' optimization early to
;; prevent encoding errors when Emacs tries to read gzipped elisp.
(unless (locate-file "startup.elc" (get 'load-path 'initial-value))
`((unless noninteractive
(doom-reset-file-handler-alist-h)
(remove-hook 'emacs-startup-hook #'doom-reset-file-handler-alist-h 101))))
(cl-loop for var in doom-autoloads-cached-vars (cl-loop for var in doom-autoloads-cached-vars
when (boundp var) when (boundp var)
collect `(set ',var ',(symbol-value var))) collect `(set ',var ',(symbol-value var)))