GNU bug report logs - #45962
‘binutils-mesboot0’ includes non-zero timestamps in ar archives

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From: Ludovic Courtès <ludo <at> gnu.org>
To: 45962 <at> debbugs.gnu.org
Cc: Jan Nieuwenhuizen <janneke <at> gnu.org>
Subject: bug#45962: ‘binutils-mesboot0’ includes non-zero timestamps in ar archives
Date: Mon, 18 Jan 2021 18:29:24 +0100

Hi!

On #bootstrappable, mid-kid reported that ‘binutils-mesboot0’ in
commencement.scm lacks ‘--enable-deterministic-archives’.  So I checked
if this had an effect by running:

  guix build -e '(@@ (gnu packages commencement) gcc-core-mesboot0)' \
     --check -K

and yes, it does:

--8<---------------cut here---------------start------------->8---
$ diff -ru /gnu/store/ri28kdl41bb76qjr4cyarylw7kxpvfxy-gcc-core-mesboot0-2.95.3{,-check}
Binary files /gnu/store/ri28kdl41bb76qjr4cyarylw7kxpvfxy-gcc-core-mesboot0-2.95.3/lib/gcc-lib/i686-unknown-linux-gnu/2.95.3/libc.a and /gnu/store/ri28kdl41bb76qjr4cyarylw7kxpvfxy-gcc-core-mesboot0-2.95.3-check/lib/gcc-lib/i686-unknown-linux-gnu/2.95.3/libc.a differ
Binary files /gnu/store/ri28kdl41bb76qjr4cyarylw7kxpvfxy-gcc-core-mesboot0-2.95.3/lib/gcc-lib/i686-unknown-linux-gnu/2.95.3/libgcc.a and /gnu/store/ri28kdl41bb76qjr4cyarylw7kxpvfxy-gcc-core-mesboot0-2.95.3-check/lib/gcc-lib/i686-unknown-linux-gnu/2.95.3/libgcc.a differ
Binary files /gnu/store/ri28kdl41bb76qjr4cyarylw7kxpvfxy-gcc-core-mesboot0-2.95.3/lib/libgcc2.a and /gnu/store/ri28kdl41bb76qjr4cyarylw7kxpvfxy-gcc-core-mesboot0-2.95.3-check/lib/libgcc2.a differ
Binary files /gnu/store/ri28kdl41bb76qjr4cyarylw7kxpvfxy-gcc-core-mesboot0-2.95.3/lib/libiberty.a and /gnu/store/ri28kdl41bb76qjr4cyarylw7kxpvfxy-gcc-core-mesboot0-2.95.3-check/lib/libiberty.a differ
--8<---------------cut here---------------end--------------->8---

Apparently Binutils 2.14 didn’t have ‘--enable-deterministic-archives’
so we’ll have to patch it.

There are a few other Binutils variants in commencement.scm that we’ll
have to check.

Ludo’.

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