Re: emacs reproducible builds part1 of 2 : eln

["Bernhard M. Wiedemann" <bernhardout@lsmod.de>]

On 28/05/2024 17.20, Andrea Corallo wrote:
> Andrea Corallo <acorallo@gnu.org> writes:
> 
>> "Bernhard M. Wiedemann" <bernhardout@lsmod.de> writes:
>>> I made a reproducer for one of them:
>>>
>>> cd ~/rpmbuild/BUILD/emacs-29.3/native-lisp &&
>>>   for i in $(seq 10) ; do
>>>    ../src/emacs -batch \
>>>    --eval "(batch-native-compile t)" ../lisp/international/utf7.el &&
>>>    md5sum 29.*/utf7.eln
>>>   done | sort | uniq -c
>>>
>>> again with ASLR as factor in the result.
>>>
>>> The varying files are
>>> emacs/29.3/native-lisp/29.3-f8a6a23e/el-72f9fa70-1a554ff6.eln
>>> emacs/29.3/native-lisp/29.3-f8a6a23e/ox-9aa46d10-040d281c.eln
>>> emacs/29.3/native-lisp/29.3-f8a6a23e/utf7-8aab9346-0cfd2c82.eln
>>> emacs/29.3/native-lisp/29.3-fc431f4a/utf7-8aab9346-0cfd2c82.eln
>>>
>>> Unfortunately, the el.el and ox.el don't reproduce non-determinism the
>>> same way.
>>
>> Just an ACK that I've reproduced the utf7 case and I'm working on a fix.
>> I'll look at the other afterwards (if the fix does not fix all of them).
> 
> Hi Bernhard,
> 
> could you verify that after 509e7f877ba those elns are now stable for
> you?
> 
> Building lisp/cedet/semantic/bovine/el.el, lisp/org/ox.el and
> lisp/international/utf7.el looks stable on my test-bed here.

I get build failures when I add only this patch on top of our 29.3
and when I try to apply the whole 18MB diff of 29.3..509e7f877ba it 
clashes with the other patches we have in our openSUSE package.
I'll just wait for 29.4 then...

Ciao
Bernhard M.