Re: Timestamps in ...-autoloads.el files

[Alex Kost]

Ludovic Courtès (2015-10-20 22:38 +0300) wrote:

> Alex Kost <address@hidden> skribis:
>
[...]
>> However this will fix only those packages, that use
>> ‘emacs-generate-autoloads’ directly or via ‘emacs-build-system’.  But
>> there are also packages that generate autoloads on their own (for
>> example, 'emacs-w3m' or 'guix' itself).  What to do for these ones?
>>
>> Perhaps we can make a special 'emacs-build' package (that will advise
>> ‘autoload-insert-section-header’ function somehow) and use it as an
>> input for emacs-packages, or are there other ways?
>
> What about patching Emacs directly?

Indeed!

> An upstreamable patch would be one that honors the ‘SOURCE_DATE_EPOCH’
> variable¹.
>
> Alternately, a patch that simply changes
> ‘autoload-insert-section-header’ to always use zero as the timestamp
> would work as well, unless this would somehow break functionality.
>
> Thoughts?

I like the idea to honor SOURCE_DATE_EPOCH, so I'm attaching a patch for
this.  But now I don't know how to make Guix set this variable during
the build process :-(  Need help.

> Thanks for looking into it,
> Ludo’.
>
> ¹ https://reproducible-builds.org/specs/source-date-epoch/

Thanks for the info!

0001-gnu-emacs-Honor-SOURCE_DATE_EPOCH.patch
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