Hi Ryan, Sorry for the late reply! Ryan Watkins skribis: > and proceeded to try: > guix build -f guix.scm --with-input=guile=guile-next > > to no avail, thus the two errors received are: > http://paste.lisp.org/display/341595 FTR the Automake test failure here is: --8<---------------cut here---------------start------------->8--- ERROR: t/primary-prefix-invalid-couples.tap - missing test plan ERROR: t/primary-prefix-invalid-couples.tap - exited with status 1 --8<---------------cut here---------------end--------------->8--- Apparently this failure happens only when guile@2.0 is replaced by guile@2.2 in Automake’s dependency graph. This is surprising given that Guile is just an indirect dependency of Automake, via ‘autoconf-wrapper’: