Hello Guix!

While trying to get the Gnome desktop up and running on a Pinebook Pro
running Guix, I hit issues building samba.  It turned out there was a
bug in the configure script which just happened to work on x86_64 by
chance.

See <https://bugzilla.samba.org/show_bug.cgi?id=14503> for more details,
then we can backport the patch from upstream.

Thanks,
Pierre