bug#48552: mesa 20.2.4 is not reproducible

[Maxim Cournoyer <maxim.cournoyer@gmail.com>]

Hello,

Ludovic Courtès <ludo@gnu.org> writes:

> Hi,
>
> Bone Baboon <bone.baboon@disroot.org> skribis:
>
>> When I run `guix challenge` it shows that these versions of mesa are not
>> reproducible.
>>
>> ```
>> /gnu/store/2lyzzw7ybsm3s2n7fgqm17n33n62dl7c-mesa-20.2.4
>> /gnu/store/k72zqqiysk3qcwqj917hmlbvqs8shj0x-mesa-20.2.4
>> ```
>>
>> This looks like it could also be related to bug#43849.
>>
>> `guix describe` outputs:
>>
>> ```
>> Generation 24   May 12 2021 18:06:24    (current)
>>   guix d6aeebb
>>     repository URL: https://git.savannah.gnu.org/git/guix.git
>>     branch: master
>>     commit: d6aeebb23639258311fdfb9dbf5f903079fde51a
>> ```
>>
>> `guix challenge mesa` outputs:
>>
>> ```
>> /gnu/store/9624kmpsr9mcx0qb1zvbk5hpxymgk0s4-mesa-20.2.4 contents differ:
>>   local hash: 0ca468jgq1sgw0llsjrmk1jjny08ndhs4634yp9m9aajr4p0g8q1
>>   https://ci.guix.gnu.org/nar/lzip/9624kmpsr9mcx0qb1zvbk5hpxymgk0s4-mesa-20.2.4: 1kp0l03bdinmnzkn2xqyrl6gymzy9qrh5kbq2i8fbgxb0c1j54m7
>>   differing files:
>>     /lib/dri/iris_dri.so
>>     /lib/dri/nouveau_drv_video.so
>>     /lib/vdpau/libvdpau_nouveau.so.1.0.0
>>     /lib/libXvMCnouveau.so.1.0.0
>>     /lib/libOSMesa.so.8.0.0
>>     /lib/libvulkan_radeon.so
>>     /lib/libxatracker.so.2.5.0
>>
>> 1 store items were analyzed:
>>   - 0 (0.0%) were identical
>>   - 1 (100.0%) differed
>>   - 0 (0.0%) were inconclusive
>> ```
>>
>> Attached is the diffoscope output.
>
> This is reportedly fixed by the Meson 0.59.0 upgrade on ‘core-updates’:
>
>   https://issues.guix.gnu.org/49646
>
> Let’s double-check with independent builds later on.
>
> Thanks,
> Ludo’.

Confirmed with mesa-21.2.5 on core-updates-frozen.

Thanks!

Closing,

Maxim