Re: An update on ‘core-updates’

[Janneke Nieuwenhuizen <janneke@gnu.org>]

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Ludovic Courtès writes:

Hi!

> We’ve updated GCC 11.x, glibc, binutils, and various packages from (gnu
> packages base).  Notable exceptions are Coreutils, Findutils, sed, and
> tar; I tried but that’s a bit more work, notably because their variants
> in commencement.scm would no longer build because their build scripts
> use sed patterns not supported by Gash-Utils.

CC'ing Ekaitz and I'll also relay this to #guix-risc-v.  There's quite
some work going on in commencement, we can probably incorporate these.

I think a possible workaround was suggested by Timothy

    https://lists.gnu.org/archive/html/gash-devel/2023-09/msg00002.html

> Long story short: I’d like us to freeze and merge the branch ASAP,
> notably because the glibc graft on ‘master’ leads to a bad user
> experience.  I’m happy with the current state of the branch and wouldn’t
> mind postponing remaining upgrades for the next cycle.
>
> Thoughts?

FWIW, I'm all for this.  The longer we wait, the harder it gets?  As
soon as everything works, see below...

> Remaining work includes: checking that cross-compilation targets still
> work after the recent Binutils updates, checking i586-gnu (GNU/Hurd) and
> other platforms, and possibly addressing the Gawk non-determinism
> issue².

Building a bare-hurd system on core-updates succeeded "not long ago"
(after the glibc+locales patch series I think) but now fails on
gcc-cross-sans-libc-i586-pc-gnu-11.4.0

--8<---------------cut here---------------start------------->8---
Configuring in i586-pc-gnu/libobjc
[..]
checking dynamic linker characteristics... configure: error: Link tests are not allowed after GCC_NO_EXECUTABLES.
[..]
builder for `/gnu/store/94lj8490ixpd997m3siaxw5yhd52za6g-gcc-cross-sans-libc-i586-pc-gnu-11.4.0.drv' failed with exit code 1
--8<---------------cut here---------------end--------------->8---

Any ideas what may have happened/changed here?  Hmm, it looks like

    d21d596f72ad491937123980e65d3efedc903bd6
    gnu: gcc: Support objc, objc++ by default.

was probably the problem.  Trying the attached patch, Hurd system not
build yet.

Greetings,
Janneke


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From 0e1bf5714261de8f25baabca3b826284102b6c40 Mon Sep 17 00:00:00 2001
Message-ID: <0e1bf5714261de8f25baabca3b826284102b6c40.1705062924.git.janneke@gnu.org>
From: Janneke Nieuwenhuizen <janneke@gnu.org>
Date: Fri, 12 Jan 2024 13:24:14 +0100
Subject: [PATCH] gnu: gcc: Fix building cross compiler for the Hurd.

This is a follow-up to commit
    d21d596f72ad491937123980e65d3efedc903bd6
    gnu: gcc: Support objc, objc++ by default.

* gnu/packages/gcc.scm (gcc-4.7): Only build c,c++ when building for the Hurd.

Change-Id: I21ce5dd30d7ab253e6a46173eb674b55d6c01505
---
 gnu/packages/gcc.scm | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/gnu/packages/gcc.scm b/gnu/packages/gcc.scm
index ecd88931eb..111b096185 100644
--- a/gnu/packages/gcc.scm
+++ b/gnu/packages/gcc.scm
@@ -15,6 +15,7 @@
 ;;; Copyright © 2022 Greg Hogan <code@greghogan.com>
 ;;; Copyright © 2023 Bruno Victal <mirai@makinata.eu>
 ;;; Copyright © 2023 Maxim Cournoyer <maxim.cournoyer@gmail.com>
+;;; Copyright © 2024 Janneke Nieuwenhuizen <janneke@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -132,9 +133,11 @@ (define-public gcc-4.7
             ;; contents of (maybe-target-tools).
             (list 'quasiquote
                   (append
-                   '("--enable-plugin"
-                     "--enable-languages=c,c++,objc,obj-c++"
-                     "--disable-multilib"
+                   '("--enable-plugin")
+                   (if (target-hurd?)
+                       '("--enable-languages=c,c++")
+                       '("--enable-languages=c,c++,objc,obj-c++"))
+                   '("--disable-multilib"
                      "--with-system-zlib"
 
                      ;; No pre-compiled libstdc++ headers, to save space.

base-commit: 8e9573784f06ec2af96f9298c6dd4346688888fb
-- 
2.41.0


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