#:modules and #:imported-modules are distinct arguments. #:modules is the modules that your builder is going to use (as in "they go in a (use-modules ...) form"), while #:imported-modules is the modules that need to be available in the build environment. It's complaining at build-time that it can't find that module to use, because you haven't told it to include that module in the build environment. #:imported-modules should give a superset of what #:modules gives, especially if a module in use is going to have indirect requirements. Thankfully, wrangling together those indirect requirements is already implemented in (guix modules) as source-module-closure.
Thus, you could conceptually do (arguments `(#:imported-modules (,@(source-module-closure '((gnu packages jami) ,@%gnu-build-system-modules))) #:modules ((gnu packages jami) ,@(@@ (guix build-system gnu) %default-modules)))) And in theory it would work. Note, though, that this would pull in the entire module dependency graph of (gnu packages jami), and this may include things that source-module-closure would have a hard time detecting and aren't really needed. Ideally this procedure would be generalized and put in (guix build <something>), but I can understand if that's not possible. Note also that you could simply splice in the definition of your procedure into the builder manually, like so: (define my-procedure-code '(lambda (a b c) ...)) (arguments `(#:phases (let ((my-procedure ,my-procedure-code)) (modify-phases ...)))) Hope that helps, thanks for the work on Jami y'all! On Tue, Dec 10, 2019 at 8:57 AM Pierre Neidhardt <m...@ambrevar.xyz> wrote: > Sorry, I don't know how to import a procedure defined in the same file :( > Anyone? > > -- > Pierre Neidhardt > https://ambrevar.xyz/ >