bug#67157: gcc-toolchain@4.8.5 not available on the official substitute servers

[Simon Tournier]

Hi,

Thanks for the report.

On Mon, 13 Nov 2023 at 20:19, Frédéric Mahé <frederic.mahe@cirad.fr> wrote:

> Is the absence of a x86-64 GNU Linux GCC 4.8.5 build deliberate? I can 
> imagine that this old version is not a priority anymore. Nonetheless, it 
> is still very frequent in the wild, at least until the end-of-support of 
> CentOS 7 next year.

No, it is not deliberate, sadly.  Well, I have tried to find a past
revision when gcc-toolchain@4.8.5 builds but I fail.

The Guix Data Service shows that gcc-toolchain@4.8.5 is not available
for the build farm named Bordeaux.  And the substitutes are also missing
on the other build farm named Berlin.

Well, my guess is the issue is related to an update of GCC.  Therefore,
I am trying this commit:

        27322ac30be6816eca33ee946a04d3b0ab32896f
        CommitDate: Thu Sep 8 21:40:00 2022 +0200

which is right before the update to GCC 11 as default.

  guix time-machine --commit=27322ac30be6816eca33ee946a04d3b0ab32896f \
       -- build gcc-toolchain@4.8.5 --no-grafts

Wait and see…

Cheers,
simon