[Bug 216143] lang/rust, devel/cargo: generate bootstraps for Tier2 architectures via cross-compilation

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=216143

Jean-Sébastien Pédron <dumbbell at FreeBSD.org> changed:

           What    |Removed                     |Added
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             Status|New                         |In Progress
                 CC|                            |dumbbell at FreeBSD.org

--- Comment #1 from Jean-Sébastien Pédron <dumbbell at FreeBSD.org> ---
Hi!

I started to look into this.

== Updating lang/rust-nightly ==

I'm updating lang/rust-nightly to a recent snapshot and add support for i386 at
the same time. This is not directly related to this issue but will help to make
sure we don't have regression. I'm currently testing the port in Poudriere for
HEAD/amd64 and 11.0/i386.

== Cargo on i386 ==

I'm updating devel/cargo to 0.15.0 and add i386 support at the same time. There
cargo prebuilt binaries available for FreeBSD/i386 since last October, I missed
that. I'm currently testing the port in Poudriere for HEAD/amd64.
Unfortunately, I can't test 11.0/i386 because cargo(1) for i386 segfaults on
amd64. The executable runs successfully in ref11-i386. I will try to build the
port there.

== Rust and Cargo on !x86 ==

Finally, I started to look for guides to bootstrap Rust and Cargo on
unsupported hosts. I'm going to take aarch64 as the first victim.

I found the following article from someone who did several ports of Rust:
https://www.reddit.com/r/rust/comments/5ag60z/how_do_i_bootstrap_rust_to_crosscompile_for_a_new/

The following article might be useful too; I'm not sure yet:
http://os.phil-opp.com/cross-compile-libcore.html

I will keep you posted.

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