[debbugs-tracker] bug#23307: closed (VLC does not build deterministically)

[GNU bug Tracking System]

Your message dated Mon, 18 Apr 2016 15:42:15 +0200
with message-id <address@hidden>
and subject line Re: bug#23307: VLC does not build deterministically
has caused the debbugs.gnu.org bug report #23307,
regarding VLC does not build deterministically
to be marked as done.

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-- 
23307: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=23307
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--- Begin Message --- Subject: VLC does not build deterministically Date: Mon, 18 Apr 2016 13:46:06 +0200 User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux)

Commit 4ef2721b52c4929aac15db4f8b39702cd37955a1 fixed an obvious
timestamp-related reproducibility issue in VLC 2.2.1, but there remains
a problem with the ‘lib/vlc/plugins/plugins.dat’ whose contents differ
across rebuilds by a few 32-bit values (see attached diffoscope output.)

The ‘plugins.dat’ file is generated by this rule in bin/Makefile.am:

--8<---------------cut here---------------start------------->8---
../modules/plugins.dat: vlc-cache-gen$(EXEEXT)
        $(AM_V_at)rm -f ../modules/plugins.dat
        $(AM_V_GEN)if test "$(build)" = "$(host)"; then \
                ./vlc-cache-gen$(EXEEXT) ../modules ; \
        else \
                echo "Cross-compilation: cache generation skipped!" ; \
        fi
--8<---------------cut here---------------end--------------->8---

Ludo’.

t.html.gz
Description: diffoscope output

--- End Message ---

> --- Begin Message ---
>
>
>
> Subject: 
>
> Re: bug#23307: VLC does not build deterministically
>
>
>
>
> Date: 
>
> Mon, 18 Apr 2016 15:42:15 +0200
>
>
>
>
> User-agent: 
>
> Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux)
>
>
>
>
> address@hidden (Ludovic Courtès) skribis:
>
> > Commit 4ef2721b52c4929aac15db4f8b39702cd37955a1 fixed an obvious
> > timestamp-related reproducibility issue in VLC 2.2.1, but there remains
> > a problem with the ‘lib/vlc/plugins/plugins.dat’ whose contents differ
> > across rebuilds by a few 32-bit values (see attached diffoscope output.)
> >
> > The ‘plugins.dat’ file is generated by this rule in bin/Makefile.am:
> >
> > ../modules/plugins.dat: vlc-cache-gen$(EXEEXT)
> >       $(AM_V_at)rm -f ../modules/plugins.dat
> >       $(AM_V_GEN)if test "$(build)" = "$(host)"; then \
> >               ./vlc-cache-gen$(EXEEXT) ../modules ; \
> >       else \
> >               echo "Cross-compilation: cache generation skipped!" ; \
> >       fi
>
> Turned out to be simple:
>
>   
> http://git.savannah.gnu.org/cgit/guix.git/commit/?id=cd76fbde6f70a6c0087f9330c266d51e334a0679
>
> Ludo’.
>
>
> --- End Message ---