bug#43721: Package 'dune' (ocaml) is not Reproducible

[zimoun]

Dear,

On Wed, 30 Sep 2020 at 14:42, Julien Lepiller <julien@lepiller.eu> wrote:

>> --8<---------------cut here---------------start------------->8---
>> Binary files
>> /gnu/store/1wwdmzcjhrpal92sz2zwzhyqmbc3w7ri-dune-1.11.3/lib/ocaml/site-lib/dune/configurator/configurator.cma
>> and
>> /gnu/store/1wwdmzcjhrpal92sz2zwzhyqmbc3w7ri-dune-1.11.3-check/lib/ocaml/site-lib/dune/configurator/configurator.cma
>> differ Binary files
>> /gnu/store/1wwdmzcjhrpal92sz2zwzhyqmbc3w7ri-dune-1.11.3/lib/ocaml/site-lib/dune/configurator/configurator__Extract_obj.cmt
>> and
>> /gnu/store/1wwdmzcjhrpal92sz2zwzhyqmbc3w7ri-dune-1.11.3-check/lib/ocaml/site-lib/dune/configurator/configurator__Extract_obj.cmt
>> differ Binary files
>> /gnu/store/1wwdmzcjhrpal92sz2zwzhyqmbc3w7ri-dune-1.11.3/lib/ocaml/site-lib/dune/configurator/configurator__V1.cmti
>> and
>> /gnu/store/1wwdmzcjhrpal92sz2zwzhyqmbc3w7ri-dune-1.11.3-check/lib/ocaml/site-lib/dune/configurator/configurator__V1.cmti
>> differ

[...]

> The difference seems to be bigger than a simple timestamp, but it's all
> on binary files, and diffoscope is not very useful for that. Maybe file
> system ordering? I'm investigating.

Is it not related to your detailed analysis:

   <http://issues.guix.gnu.org/43745#51>

BTW, the update of “dune“ #43745 seems fixing the issue.


All the best,
simon