bug#38434: QEMU 4.1.1 build is not reproducible

[Maxim Cournoyer]

Hello!

Ludovic Courtès <ludo@gnu.org> writes:

> QEMU 4.1.1 does not build reproducibly.  From ‘guix challenge’:
>
> /gnu/store/i347iqh8a5x7h1lgs6wlvk5jk5cwilgi-qemu-4.1.1 contents differ:
>   no local build for '/gnu/store/i347iqh8a5x7h1lgs6wlvk5jk5cwilgi-qemu-4.1.1'
>   
> https://bayfront.guixsd.org/nar/gzip/i347iqh8a5x7h1lgs6wlvk5jk5cwilgi-qemu-4.1.1:
>  09np35221bfpf4spqvnxh6wzb15s1l8vz2vn72kyc41qf02bgq69
>   
> https://ci.guix.gnu.org/nar/gzip/i347iqh8a5x7h1lgs6wlvk5jk5cwilgi-qemu-4.1.1: 
> 0hp5qc6phcrdncs31brcq5wban25fif4y1kihlsc75zzj2cbakx7

Good news!  I cannot reproduce this with QEMU 5.1.0, on linux-x86_64 and
Guix e17b732.

--8<---------------cut here---------------start------------->8---
$ guix challenge qemu
updating substitutes from 'https://ci.guix.gnu.org'... 100.0%

1 store items were analyzed:
  - 1 (100.0%) were identical
  - 0 (0.0%) differed
  - 0 (0.0%) were inconclusive
--8<---------------cut here---------------end--------------->8---

Closing.

Thanks,

Maxim