Hi guix, With the core-updates-frozen merge, some (i.e., so far one) bug reports about cross-compilation failing due to %outputs not being defined have been appearing: https://issues.guix.gnu.org/52574.
(That particular bug was actually introduced in core-updates-frozen!) To find out how prevalent these issues are, and to prevent them from being introduced, a linter detecting (assoc-ref %outputs ...) in sexps and gexps and suggesting to use #$output:... could be useful. This should be doable with 'gexp->approximate-sexp'. Also, maybe "guix style" could even be teached to G-expify most S-exps. Long term, we might want to eliminate %outputs entirely, to make the wrong thing impossible to do instead of making it easy to break cross- compilation. Alternatively, %outputs (& friends?) could be re-introduced, albeit with #$output and #$(this-package-input ...) being strongly preferred above %outputs & %build-inputs & friends. Reintroducing %build-inputs/%build-target-inputs/... could help with the ‘how do I refer to implicit build inputs from #:configure-flags’ issues that have been cropping up. Greetings, Maxime.
