Hi Guix, for fun I just ported Yale Haskell to CLISP (it only needed a handful of changes). I’m using EXT:SAVEINITMEM to generate an executable image. Building the image outside of Guix I can run the executable and I get a Haskell prompt as expected. When I packaged it and tried to run the packaged executable, however, I got this error: module 'syscalls' requires package OS. (This error is reported by CLISP.) Attached is the patch I used to build the yale-haskell package.