Re: Aarch64 build of rust-1.39.0 fails

[Efraim Flashner <efraim@flashner.co.il>]

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On Mon, Jan 10, 2022 at 04:22:17PM -0500, Maxim Cournoyer wrote:
> Hi Denis,
> 
> Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org> writes:
> 
> > On Tue, 04 Jan 2022 17:22:02 -0500
> > Maxim Cournoyer <maxim.cournoyer@gmail.com> wrote:
> >
> >> Hi Denis,
> > Hi,
> >
> >> Note that you'll want to use the latest commit available of mrustc, or
> >> something recent enough like this in (gnu packages rust) as it
> >> includes recent fixes to the (still failing) i686 build:
> > With ./build-1.39.0.sh in mrustc, some help from #mrustc, and some local
> > patches, I was able to get it build under 4GiB of RAM per process with
> > an x86_64 kernel (by removing -O2 and -g), but it fails for 3GiB of RAM
> > per process (i686 kernel) no mater what options are passed to it.
> 
> Thank you for doing the experiment and sharing the result!  I've relayed
> it to mrustc's author here:
> https://github.com/thepowersgang/mrustc/issues/78, I hope you don't
> mind.
> 
> > My issue is that claws-mail now depend on rust (it didn't before). As
> > several other pakcages also fails on i686 (failing tests), and that I
> > also hit a Guix bug, it's hard for me to fix it as everything is
> > broken and I need to do workarounds on workarounds.
> 
> The situation with Rust on Guix is far from satisfactory, and the usage
> of Rust continues to expand, we'll have to find solutions.  GCC-rust
> seems like a good candidate to help us bootstrap for more platforms, but
> it isn't ready yet.  mrustc is the current best option; cross-building
> rust could be another thing to do (there's a wip-cross-built-rust branch
> that I had started to explore doing this), but it's a messier path.
> 
> > What do I need to revert (locally?) to make claws-mail not depend on
> > rust (for i686)?
> 
> I don't see this relationship locally:
> 
> $ guix graph --path claws-mail rust
> $ guix describe
> 5b95cad85018e64f2a34ef950dd2e5434d07cfc0
> 
> But looking at the package definition, it explicitly depends on librsvg,
> which is a Rust-powered library.  You could try to make this input
> conditional (e.g., add it only when the system is x86_64), if claws-mail
> can be built without it.

Specifically, try replacing librsvg with librsvg-for-system

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Efraim Flashner   <efraim@flashner.co.il>   רנשלפ םירפא
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