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Date: Fri, 3 Apr 2020 17:17:27 +0200
From: Natanael Copa <ncopa@alpinelinux.org>
To: Shiz <hi@shiz.me>
Cc: Jean-Louis Fuchs <jean-louis.fuchs@adfinis-sygroup.ch>, Rasmus Thomsen
 <oss@cogitri.dev>, "~alpine/devel@lists.alpinelinux.org"
 <~alpine/devel@lists.alpinelinux.org>
Subject: Re: rust triples (WAS: Re: Planning for 3.12 feature freeze)
Message-ID: <20200403171727.7e4bb42b@ncopa-desktop.copa.dup.pw>
In-Reply-To: <280DD35B-697F-41E2-89E7-7235690B8DD4@shiz.me>
References: <kcEE.jwTbMwvuQKKkHR3apIGq6Q.gNaPvrAJ1gE@srsyg17.sygroup-int.ch>
	<280DD35B-697F-41E2-89E7-7235690B8DD4@shiz.me>
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On Fri, 3 Apr 2020 15:32:18 +0200
Shiz <hi@shiz.me> wrote:

> I propose we move to $arch-alpine-linux-musl everywhere and fix any
> outstanding issues with it. I can help if needed.

I think this would be the cleanest thing to do, however, I don't have
much experience with rust, so help would be appreciated.

I tried to build it on armv7 as a test:

diff --git a/community/rust/APKBUILD b/community/rust/APKBUILD
index bcde30fbd3..3941803500 100644
--- a/community/rust/APKBUILD
+++ b/community/rust/APKBUILD
@@ -7,7 +7,7 @@ pkgname=rust
 pkgver=1.42.0
 _llvmver=10
 _bootver=1.41.1
-pkgrel=1
+pkgrel=2
 pkgdesc="The Rust Programming Language"
 url="https://www.rust-lang.org"
 arch="x86_64 armv7 armhf aarch64 x86 ppc64le"
@@ -88,10 +88,10 @@ case "$CARCH" in
                _build="i686-unknown-linux-musl"
                _target="$_build"
                ;;
-       armv7)
-               _build="armv7-unknown-linux-musleabihf"
-               _target="$_build"
-               ;;
+#      armv7)
+#              _build="armv7-unknown-linux-musleabihf"
+#              _target="$_build"
+#              ;;
        armhf)
                _build="arm-unknown-linux-musleabihf"
                _target="$_build"

It manages to build but during `abuild rootpkg` it fails. Apparently due to it needs uses cargo, but the installed cargo does not have an installed stdlib:

   Compiling quote v0.6.12
error[E0461]: couldn't find crate `core` with expected target triple armv7-alpine-linux-musleabihf
  |
  = note: the following crate versions were found:
          crate `core`, target triple armv7-unknown-linux-musleabihf: /usr/lib/rustlib/armv7-unknown-linux-musleabihf/lib/libcore-522d58512672202f.rlib

error[E0461]: couldn't find crate `core` with expected target triple armv7-alpine-linux-musleabihf
  |
  = note: the following crate versions were found:
          crate `core`, target triple armv7-unknown-linux-musleabihf:
          /usr/lib/rustlib/armv7-unknown-linux-musleabihf/lib/libcore-522d58512672202f.rlib

Is there a way to make cargo look into another directory? Or is it better to manually create bootstrap packages?

-nc

> 
> - Shiz
>