Re: Aarch64 build of rust-1.39.0 fails

[Maxim Cournoyer <maxim.cournoyer@gmail.com>]

Hi Denis,

Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org> writes:

[...]

> With both Guix system i686 and Parabola i686 (with linux-libre-pae)
> htop sees 8GiB of RAM on my laptop[1], and I've also 9G of swap
> available, and I can probably make it run builds the night, so I'll try
> to get that built on my laptop and report here and/or on IRC.

Actually I'm not sure I understand where the limits comes from; it seems
when using 32 bits there's a 2 GB limit somewhere:
https://github.com/thepowersgang/mrustc/issues/78#issuecomment-980830551

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:

--8<---------------cut here---------------start------------->8---
;;; Note: mrustc's only purpose is to be able to bootstap Rust; it's designed
;;; to be used in source form.  The latest support for bootstrapping from
;;; 1.39.0 is not yet released so use the latest commit (see:
;;; https://github.com/thepowersgang/mrustc/issues/185).
(define %mrustc-commit "c7066542f8e93d320323749216bf3c82aecb67c2")
(define %mrustc-source
  (let* ((version "0.9")
         (commit %mrustc-commit)
         (revision "1")
         (name "mrustc"))
    (origin
      (method git-fetch)
      (uri (git-reference
            (url "https://github.com/thepowersgang/mrustc")
            (commit commit)))
      (file-name (git-file-name name (git-version version revision commit)))
      (sha256
       (base32
        "0zv1x6601s5fnnkcdlqkc4bknisqz569qb0iyb9rjsmaf1kh0na3")))))
--8<---------------cut here---------------end--------------->8---

HTH,

Maxim