Matthew Lien <bluet@bluet.org> skribis:

> 2. nix/nix-daemon/guix-daemon.cc in git repo did not get patched, yet.
> Maybe you forgot to git push? (I patched it manually at my side before
> testing)

OK, will push.

The main problem is this error (while connecting to the build daemon
over a Unix-domain socket):

--8<---------------cut here---------------start------------->8---
In guix/store.scm:
 270: 1 [open-connection "/root/guix/test-tmp/var/1123/daemon-socket/socket" # #t]
In unknown file:
   ?: 0 [setsockopt #<input-output: socket 5> 65535 4098 12288]

ERROR: In procedure setsockopt:
ERROR: In procedure setsockopt: Protocol not available
--8<---------------cut here---------------end--------------->8---

I just checked, and pflocal (the Hurd’s translator that implements
AF_UNIX sockets) always returns ENOPROTOOPT for ‘setsockopt’
(aka. ‘socket_setopt’), hence this failure:

  http://git.savannah.gnu.org/cgit/hurd/hurd.git/tree/pflocal/socket.c#n456

Can you test the workaround below?

Thanks,
Ludo’.