GNU bug report logs - #53532
29.0.50; Eager macroexpansion failure in corner case

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Package: emacs;

Reported by: Stefan Monnier <monnier <at> iro.umontreal.ca>

Date: Tue, 25 Jan 2022 19:47:02 UTC

Severity: normal

Found in version 29.0.50

Done: Stefan Monnier <monnier <at> iro.umontreal.ca>

Bug is archived. No further changes may be made.

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Report forwarded to bug-gnu-emacs <at> gnu.org:
bug#53532; Package emacs. (Tue, 25 Jan 2022 19:47:02 GMT) Full text and rfc822 format available.
Acknowledgement sent to Stefan Monnier <monnier <at> iro.umontreal.ca>:
New bug report received and forwarded. Copy sent to bug-gnu-emacs <at> gnu.org. (Tue, 25 Jan 2022 19:47:02 GMT) Full text and rfc822 format available.

Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: bug-gnu-emacs <at> gnu.org
Subject: 29.0.50; Eager macroexpansion failure in corner case
Date: Tue, 25 Jan 2022 14:45:29 -0500

Package: Emacs
Version: 29.0.50


    % make (with native compiler)
    [...]
    % touch lisp/emacs-lisp/{cl-macs,byte-opt,comp}.el
    % make -j4
    [...]
    Warning: Eager macro-expansion skipped due to cycle:
      … => (load "byte-opt.el") => (macroexpand-all (defalias 'byte-decompile-bytecode-1 …)) => (macroexpand (cl-symbol-macrolet …)) => (load "comp.el") => (macroexpand (eval-when-compile …)) => (load "byte-opt.el")
    [...]

I haven't yet managed to turn this eager-macroexpansion cycle warning
into an actual error, but it'd be good to get rid of this
cyclic dependency.

I'm not sure how we go from (macroexpand (cl-symbol-macrolet …)) to
loading `comp.el` but I suspect that's where the problem lies.


        Stefan
bug closed, send any further explanations to 53532 <at> debbugs.gnu.org and Stefan Monnier <monnier <at> iro.umontreal.ca> Request was from Stefan Monnier <monnier <at> iro.umontreal.ca> to control <at> debbugs.gnu.org. (Tue, 05 Sep 2023 17:18:02 GMT) Full text and rfc822 format available.
bug archived. Request was from Debbugs Internal Request <help-debbugs <at> gnu.org> to internal_control <at> debbugs.gnu.org. (Wed, 04 Oct 2023 11:24:18 GMT) Full text and rfc822 format available.
This bug report was last modified 199 days ago.

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