GNU bug report logs - #53058
etc/DEBUG could say more about --enable-check-lisp-object-type

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Package: emacs;

Reported by: Sean Whitton <spwhitton <at> spwhitton.name>

Date: Thu, 6 Jan 2022 18:21:01 UTC

Severity: normal

Done: Eli Zaretskii <eliz <at> gnu.org>

Bug is archived. No further changes may be made.

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Sean Whitton <spwhitton <at> spwhitton.name>
Cc: 53058 <at> debbugs.gnu.org
Subject: bug#53058: etc/DEBUG could say more about --enable-check-lisp-object-type
Date: Thu, 06 Jan 2022 22:11:15 +0200

> From: Sean Whitton <spwhitton <at> spwhitton.name>
> Date: Thu, 06 Jan 2022 11:20:19 -0700
> 
> > Comparisons with structures, like foo == Qnil, aren't guaranteed to
> > work in GDB.  --enable-check-lisp-object-type makes Lisp objects be
> > structures rather than simple scalar values.
> 
> Thanks -- how about the attached?

Thanks, but the text there is inaccurate: NILP should still work with
structures, only == comparison probably won't.

I'm actually not sure we should describe such subtleties in etc/DEBUG.
This bug report was last modified 3 years and 164 days ago.

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