Hi Ricardo, Ricardo Wurmus writes: [...] > This is in your environment. But what about the daemon’s environment? > It is not started in your environment where GUIX_LOCPATH is set. How do > you start the daemon? If it’s via systemd you may want to look at the > service file to see where GUIX_LOCPATH points. OK now I understand too, thanks! yes, Debian starts daemons via systemd and this issue is easily fixed by installing glibc-utf8-locales in the guix default root profile: sudo -i guix package -i glibc-utf8-locales sudo systemctl restart guix-daemon.service after doing so, when I "guix build emacs --dry-run" the warning I reported disappeared I think a similar approach should resolve similar issues with other init systems since I used the binary install script [1] I think we should easily patch that so that it also "guix package -i glibc-utf8-locales" for lazy users like me :-) I'm going to test the binary install script on a brend new Debian 9 lxc container since I found other possible improvements this is also not clearly stated in https://www.gnu.org/software/guix/manual/en/html_node/Application-Setup.html#Locales-1 do it need to be fixed? AFAIU adding "export GUIX_LOCPATH=$HOME/.guix-profile/lib/locale" to root's .profile or .bash_profile is not strictly needed (unless you want to install and run packages as root user), so I'd _not_ automate this via the binary install script or document this Thanks! Giovanni [1] https://git.savannah.gnu.org/cgit/guix.git/plain/etc/guix-install.sh -- Giovanni Biscuolo Xelera IT Infrastructures