GNU bug report logs - #49293
[PATCH] isc-dhcp: Fix dhclient-script wrapper when cross-compiling.

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Message #11 received at 49293 <at> debbugs.gnu.org (full text, mbox):

From: Maxime Devos <maximedevos <at> telenet.be>
To: Mathieu Othacehe <othacehe <at> gnu.org>
Cc: 49293 <at> debbugs.gnu.org
Subject: Re: bug#49293: [PATCH] isc-dhcp: Fix dhclient-script wrapper when
 cross-compiling.
Date: Thu, 08 Jul 2021 22:44:01 +0200

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Mathieu Othacehe schreef op wo 07-07-2021 om 16:28 [+0200]:
> Hello Maxime,
> 
> > * gnu/gnunet/packages/admin.scm
> >   (isc-dhcp)[arguments]<#:phases>{post-install}: Use the
> >   cross-compiled bash when cross-compiling. Work-around
> >   <https://issues.guix.gnu.org/49290>;.
> 
> When running:
> 
> --8<---------------cut here---------------start------------->8---
> mathieu <at> meije ~/guix [env]$ grep -nr bash /gnu/store/wgrh2kzgj1h6bnhxi8vv42qvriarmhsy-isc-dhcp-4.4.2-P1
> /gnu/store/wgrh2kzgj1h6bnhxi8vv42qvriarmhsy-isc-dhcp-4.4.2-P1/libexec/dhclient-script:1:#!/gnu/store/xrvzr2xxf9azy9frn1a4ggfyws0jzg4a-bash-minimal-5.0.16/bin/bash
> /gnu/store/wgrh2kzgj1h6bnhxi8vv42qvriarmhsy-isc-dhcp-4.4.2-P1/libexec/.dhclient-script-real:1:#!/gnu/store/pwcp239kjf7lnj5i4lkdzcfcxwcfyk72-bash-minimal-5.0.16/bin/bash
> --8<---------------cut here---------------end--------------->8---
> 
> the first bash shebang reports:
> 
> --8<---------------cut here---------------start------------->8---
> mathieu <at> meije ~/guix [env]$ file /gnu/store/xrvzr2xxf9azy9frn1a4ggfyws0jzg4a-bash-minimal-5.0.16/bin/bash
> /gnu/store/xrvzr2xxf9azy9frn1a4ggfyws0jzg4a-bash-minimal-5.0.16/bin/bash: ELF 64-bit LSB executable, ARM aarch64, version 1 (SYSV), dynamically linked, interpreter /gnu/store/qxbv3y3992whk7hrbbcl391mgnqnyxch-glibc-cross-aarch64-linux-gnu-2.31/lib/ld-linux-aarch64.so.1, for GNU/Linux 2.6.32, not stripped
> --8<---------------cut here---------------end--------------->8---
> 
> which seems fine, but for the second one:
> 
> --8<---------------cut here---------------start------------->8---
> mathieu <at> meije ~/guix [env]$ file /gnu/store/pwcp239kjf7lnj5i4lkdzcfcxwcfyk72-bash-minimal-5.0.16/bin/bash
> /gnu/store/pwcp239kjf7lnj5i4lkdzcfcxwcfyk72-bash-minimal-5.0.16/bin/bash: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /gnu/store/fa6wj5bxkj5ll1d7292a70knmyl7a0cr-glibc-2.31/lib/ld-linux-x86-64.so.2, for GNU/Linux 2.6.32, not stripped
> --8<---------------cut here---------------end--------------->8---
> 
> As the first script is exec-ing the second one, it could be problematic,
> right?

Yes, indeed.  It seems like the same thing needs to be done for libexec/.dhclient-script.
Also, I'm not sure if using 'canonical-package' is the right thing.
I wonder when 'canonical-package' is supposed to be used.

(Somewhat unrelated) I'll rebase the meson patch on core-updates and try to
cross-compile some qt application and run it under qemu.  

Greetings,
Maxime.

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