Re: Will 2021 be the year of build systems on gexps?

[zimoun]

Hi Ludo,

On Wed, 10 Mar 2021 at 12:09, Ludovic Courtès <ludo@gnu.org> wrote:

> The current tip of ‘wip-build-systems-gexp’ Just Works; it’s being built,
> it can build ‘guix’ and cross-build things like ‘sed’:
>
>   
> https://data.guix-patches.cbaines.net/repository/2/branch/wip-build-systems-gexp
>
>   https://ci.guix.gnu.org/jobset/wip-build-systems-gexp (though Cuirass
>   currently has unrelated problems)

Cool!

> In terms of performance, there’s still a ~10% slowdown when computing
> derivations compared to the ‘core-updates’ revision the branch is based
> on.

Less cool! :-)


> Here’s what I’d like to do in the coming days, if that doesn’t interfere
> with what others have in mind for the upcoming release:
>
>   • Monitor build failures due to typos/thinkos made while adjusting
>     build systems;
>
>   • Merge on ‘core-updates’.

[...]

> That said, if people think it’s too late in the cycle, we could just as
> well keep it for the next cycle.

I do not think it interferes with the release since for now and except a
big change, the plan is to release without the core-updates merge.
Well, that’s my understanding of the previous discussion.


Cheers,
simon