bug#58567: Some grafts use a different input derivation than computed by --no-grafts

[Marius Bakke]

Marius Bakke <marius@gnu.org> skriver:

> zimoun <zimon.toutoune@gmail.com> skriver:
>
>> Hi Marius,
>>
>> I reminds me this [1].
>>
>> 1: <https://yhetil.org/guix/874jy87gcl.fsf@gmail.com>
>
> Not sure if it's the same problem, but it is weird.  On 3d8c243efb615c7:
>
>   $ guix build mesa
>   /gnu/store/ccf705wvh0w224d6nyscnwlhqr04agk7-mesa-21.3.8-bin
>   /gnu/store/vcmxgmmhwr39gwwnz7ljkhcg1bmq2r5z-mesa-21.3.8
>   $ guix build --no-grafts mesa
>   /gnu/store/grh2142hg6l5g5xav2di7rr1pwbg9m38-mesa-21.3.8-bin
>   /gnu/store/sdzfljm6san79pqiy42yp0nzmkr2bafc-mesa-21.3.8
>   $ guix size icecat | grep mesa
>   /gnu/store/sdzfljm6san79pqiy42yp0nzmkr2bafc-mesa-21.3.8            411.6   
> 169.6  11.6%
>   $ guix size $(guix build --no-grafts icecat) | grep mesa
>   /gnu/store/sdzfljm6san79pqiy42yp0nzmkr2bafc-mesa-21.3.8            411.6   
> 169.6  11.6%

Derp, the last two should be:

  $ guix size $(guix build icecat) | grep mesa
  /gnu/store/dbrsf4wmjjxwd3cvnbfrvikilj42gamy-mesa-21.3.8            411.6   
169.6  11.6%
  $ guix size $(guix build --no-grafts icecat) | grep mesa
  /gnu/store/sdzfljm6san79pqiy42yp0nzmkr2bafc-mesa-21.3.8            411.6   
169.6  11.6%

('guix size' implicitly disables grafts)

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