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Re: recent master core dumps building on FreeBSD i386

From: Joseph Mingrone
Subject: Re: recent master core dumps building on FreeBSD i386
Date: Fri, 19 Oct 2018 16:06:40 -0300
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (berkeley-unix)

Paul Eggert <address@hidden> writes:

> On 10/18/18 6:15 PM, Joseph Mingrone wrote:
>> Is it still helpful for me to investigate what GCALIGNED_STRUCT expands to?  
>> If so, could elaborate on how I can get this?

> To get the expansion (but see below first), put the following into a file 
> src/t.c:

> #include <config.h>
> #include <lisp.h>

> and then run 'cd src; cc -E -I. -I../lib t.c | tail -n1'. You probably need 
> to adjust that command line to match the way you're building Emacs. My output 
> with current master on Fedora x86-64 is:

> "GCALIGNED_STRUCT" __attribute__ ((aligned (8)))

> However, in thinking about this some more I do see a problem that could 
> explain your symptoms, a problem that resulted from a merge from emacs-26 
> that collided with changes in the master without Git (or
> me) noticing the collision. I installed the attached patch into master to fix 
> it. Please try this patch first, and we can worry about GCALIGNED_STRUCT only 
> if this patch does not fix things for you.

Hi Paul,

That works.

The FreeBSD emacs-devel package is updated, so this can get wider testing.

Thank you.


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