I had already tried with `--pure` initially. Here is the output from the pure 
environment attached anyway, just in case.

On Tuesday, 22 June 2021 14:06:59 CEST Julien Lepiller wrote:
> Something seems to have gone wrong with the i18n code. Maybe we use
> something that's not recognized by your shell? Can you try again, but this
> time configure and make in a pure environment? (Add --pure to the guix
> environment invocation).
> Le 20 juin 2021 17:37:34 GMT-04:00, HiPhish <hiphish@posteo.de> a écrit :
> >Hello,
> >
> >I have been trying to build Guix from source (in order to contribute a
> >new
> >package), but the `make` step fails every time. I am on Void Linux
> >(glibc) and
> >I have checked out commit  d027858e70c4a37aca90b1d4ecb2f0421a95d987.
> >
> >Here are the steps I took after checking out the repo:
> >    guix environment guix
> >    ./bootstrap
> >    ./configure --localstatedir=/var
> >    make
> >
> >The error messages are all complaining to that cross-references in
> >Texinfo
> >cannot be resolved. I have attached the full log. I already tried with
> >a
> >freshly checked out repository, and with both a pure Guix environment
> >and a
> >regular one.
> >
> >I had the same issue a couple of weeks ago, and I don't know if the
> >issue is
> >related to my distribution. Please let me know if you need any more
> >information.