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Re: [v2 0/1] Erlang
From: |
Ludovic Courtès |
Subject: |
Re: [v2 0/1] Erlang |
Date: |
Sun, 03 Apr 2016 23:26:48 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) |
Leo Famulari <address@hidden> skribis:
> On Fri, Apr 01, 2016 at 10:19:11AM +0200, Pjotr Prins wrote:
>>
>> On Thu, Mar 31, 2016 at 03:35:44PM -0400, Leo Famulari wrote:
>> > This adds Erlang.
>> >
>> > Originally written by Steve Sprang, I added the man pages and fixed all
>> > the "FHS bugs" I noticed.
>> >
>> > Pjotr used it to build a working Elixir:
>> > http://lists.gnu.org/archive/html/guix-devel/2016-03/msg00999.html
>>
>> Better even, I am actually using that Elixir and Erlang :). Please
>> push when there are no other issues.
>
> Cool! From my point of view, there are no blocking issues.
>
> There are two sources of non-determinism when building repeatedly on the
> same machine.
>
> All the .beam files have timestamps and build paths embedded [0]. This
> is a known issue without a clear solution. The build paths don't seem so
> bad to me, since my understanding is that they are set deterministically
> by the Guix builder.
>
> There are also some .script files that also embed timestamps in a human
> readable string. Grepping for the string makes it easy to find the
> source of this. We could patch the timestamp format string with the
> value of SOURCE_DATE_EPOCH.
>
> Thoughts?
>
> [0]
> https://wiki.debian.org/ReproducibleBuilds/TimestampsInBeamFiles
A patch along the lines of the one of the page above should do the work
for beam files, no? We’d have to change DEB_BUILD_DATE to
SOURCE_DATE_EPOCH, and remove regexp-matching from there.
Ludo’ (who’s never written Erlang code ;-)).
- Re: [v2 0/1] Erlang, Pjotr Prins, 2016/04/01
- Re: [v2 0/1] Erlang, Leo Famulari, 2016/04/01
- Re: [v2 0/1] Erlang,
Ludovic Courtès <=
- Re: [v3] Erlang, Leo Famulari, 2016/04/03
- Re: [v3] Erlang, Pjotr Prins, 2016/04/04
- Re: [v3] Erlang, Leo Famulari, 2016/04/04
- Re: [v3] Erlang, Leo Famulari, 2016/04/04
- Re: [v3] Erlang, Pjotr Prins, 2016/04/04
- Re: [v3] Erlang, Pjotr Prins, 2016/04/05
- Re: [v3] Erlang, Leo Famulari, 2016/04/05
- Re: [v3] Erlang, Pjotr Prins, 2016/04/09
- Re: [v3] Erlang, Pjotr Prins, 2016/04/04