Hello,

When I pushed this patchset[1], I didn't anticipate that Avahi depends
on glib which doesn't cross-compile. To fix the situation, I pushed
d9f05c70a6af1087de1717ff20036efa1afef5fb and
35a32fefb4695442265809805145b7a262ae4988.

While, it now allows to build and cross-build Guix, there's still an
issue when evaluating the "guix-master" specification with the CI.
It looks like "%current-target-system" doesn't have the expected value
in the propagated-inputs.

There's a backtrace of the situation as attachment. I'd like to find a
quick fix instead of reverting everything. Maybe removing "guile-avahi"
from the propagated-inputs of Guix could work. I'm not sure why it's
needed anyway because this library is already added to the wrapped guix
binary.

Thanks,

Mathieu