Ludovic Courtès writes:

> Jeremiah@pdp10.guru skribis:
>
>>> So if you like, please make that change.  There is only one little
>>> thing: I have no (scripted) recipe to create mescc-tools-seed-XYZ.  But
>>> wait: I have a great excuse for that...I was too lazy or too sloppy.
>>
>> I do, in mescc-tools-seed; the script bootstrap.sh when run with the
>> option "sin" will build the mescc-tools-seed binaries using mescc-tools.
>> The .M1 files are always generated by cc_x86.s using the C source files.
>
> I saw this script but it’s not entirely clear to me how to package the
> whole thing.  We don’t have a “stage0” package for instance in Guix, do
> we?

I had a look but it seems we need either binary seeds for stage0, or
binary seeds for mescc-tools and I'd rather build them within Guix; so
that's what I did now.

>>> WDYT?
>> I think we will end up having several versions of mescc-tools-seed; as
>> each architecture guix supports will end up needing a variant if we plan
>> on keeping them small. (I also have no idea how to make a multi-arch fat
>> elf binary)
>
> For now let’s focus on x86_64/i686.  :-)
>
> IMO we should change the seeds as rarely as possible because they are
> managed “out-of-band” and verifying them is difficult (you need to fetch
> the right Guix commit, run “guix build bootstrap-tarballs”, and compare
> the result—assuming this is all bit-reproducible.)
>
> The one we’re using today in Guix date back to 2013.

Okay, I am proposing the attached patches, also available on my 
core-updates-next at http://gitlab.com/janneke/guix

Still I hope these won't last for five more years ;-)
janneke.