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Fix compilation errors due to insufficient compiler safety (bug#63288)

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The default safety level is 1.  Restoring the default safety level to
1 after it was temporarily 0 should reset byte-compile-delete-errors
to nil, its default level.  Failing to do that resulted in
miscompilation of code in highly-parallel builds.

* lisp/emacs-lisp/cl-macs.el (cl--do-proclaim): Change
'byte-compile-delete-errors' to become t only at 'safety' level 0, not
levels 1 or 2.

(cherry picked from commit 53a5dada41)
This commit is contained in:
Pip Cet 2025-02-17 15:21:16 +00:00 • committed by Eli Zaretskii
parent 43c9eb3df6
commit 6cac92928a
1 changed files with 1 additions and 1 deletions
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lisp/emacs-lisp/cl-macs.el
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@ -2670,7 +2670,7 @@ Example:
(let ((speed (assq (nth 1 (assq 'speed (cdr spec)))
'((0 nil) (1 t) (2 t) (3 t))))
(safety (assq (nth 1 (assq 'safety (cdr spec)))
'((0 t) (1 t) (2 t) (3 nil)))))
'((0 t) (1 nil) (2 nil) (3 nil)))))
(if speed (setq cl--optimize-speed (car speed)
byte-optimize (nth 1 speed)))
(if safety (setq cl--optimize-safety (car safety)