GNU bug report logs - #51689
emacs -nw under native-compilation errors out

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#51689: closed (emacs -nw under native-compilation errors out)
Date: Sun, 21 Nov 2021 06:32:02 +0000

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Your message dated Sun, 21 Nov 2021 08:31:29 +0200
with message-id <83fsrqrpdq.fsf <at> gnu.org>
and subject line Re: bug#51689: emacs
has caused the debbugs.gnu.org bug report #51689,
regarding emacs -nw under native-compilation errors out
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


-- 
51689: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=51689
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Contact help-debbugs <at> gnu.org with problems

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From: Han Boetes <han <at> boetes.org>
To: bug-gnu-emacs <at> gnu.org
Subject: emacs
Date: Mon, 8 Nov 2021 17:44:54 +0100

I compiled emacs with native compilation on OpenBSD-7.0 amd64 like this:

    export CC=egcc \
           CPP="ecpp" \
           CPPFLAGS="-I/usr/local/include" \
           LDFLAGS="-L/usr/local/lib"
    ./autogen.sh
    ./configure --without-makeinfo --without-x --mandir=/usr/local/man --with-native-compilation
    gmake

egcc (GCC) 11.2.0, is just gcc-11 which is traditionally installed as
egcc to avoid conflicts with the usually somewhat older gcc in base.


Now if I start emacs with:

    emacs -nw -Q ~/.config/emacs/init.el

The file init.el is not loaded and I get a single error message:

    Symbol’s function definition is void: regexp-opt-group

After which emacs works OK, for example c-x c-f ~/.config/emacs/init.el works as expected.

Then I recompiled emacs without native compilation and the error did not occur.

And now to make the case even more mysterious, if I start emacs normally, like:

    emacs -nw ~/.config/emacs/init.el

Everything works fine. I accidentally discovered the problem by
running emacs as a test user without configuration.


Please let me know if there is anything I can do to help debugging this problem.


# Han

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Han Boetes <han <at> boetes.org>
Cc: 51689-done <at> debbugs.gnu.org
Subject: Re: bug#51689: emacs
Date: Sun, 21 Nov 2021 08:31:29 +0200

> Date: Sat, 20 Nov 2021 22:05:55 +0100
> From: Han Boetes <han <at> boetes.org>
> 
> > > > When the breakpoint breaks, look at the error_symbol and data printed
> > > > by GDB; if the symbol are not "void-function", type "continue" at
> > > > GDB's prompt to run Emacs further.  When you eventually get symbol as
> > > > "void-function" and data that mentions regexp-opt-group, type:
> > > > 
> > > >   (gdb) thread apply all bt
> > 
> > In the above you have void-variable as error_symbol and the data does
> > not mention regexp-opt-group.  So you need to type "continue" until
> > you hit this breakpoint with the correct conditions, and then produce
> > the backtrace.
> 
> And when I finally understood all the details of how to create the
> backtrace and building emacs with symbols again, which takes over 6
> hours, I noticed gdb ran out of memory and that I could no longer
> reproduce the problem with the latest code from git.

Thanks, I'm therefore closing this bug.

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