bug#23307: VLC does not build deterministically

[Ludovic Courtès]

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’.