I'm using ./pre-inst-env on my powerpc-linux machine, using guile-3.0.2 as provided by Debian. When I try to run the following command: ./pre-inst-env guix build -L /path/to/repo -m /path/to/manifest.scm -n I get the following error: guix/ui.scm:230:13: error: default-optimization-level: unbound variable It doesn't make sense to gate this with (target-ppc32?) since it's due to the guile version. If I had configured within 'guix shell -D guix' I would be using guile-3.0.7. configure.ac checks for guile 3.0. (ins)efraim@g4:~$ apt-cache policy guile-3.0 guile-3.0: Installed: 3.0.2-2be32 Candidate: 3.0.2-2be32 Version table: *** 3.0.2-2be32 500 500 http://deb.debian.org/debian-ports sid/main powerpc Packages 100 /var/lib/dpkg/status -- Efraim Flashner רנשלפ םירפא GPG key = A28B F40C 3E55 1372 662D 14F7 41AA E7DC CA3D 8351 Confidentiality cannot be guaranteed on emails sent or received unencrypted