bug#42601:

[Sharlatan Hellseher]

Hi,

I have experienced the same issue to build a package in Guix source.
It's built just fine outside the source.
My package definition
https://git.sr.ht/~hellseher/ffab/tree/5c3071c6e3490ee285d245ada5e161cd272a161f/item/ffab/packages/lisp-xyz.scm#L50

> ./pre-inst-env guix describe
Git checkout:
  repository: /mnt/library/code/guix
  branch: local/lisp-xyz/glop
  commit: c23d4871a609018b16ce27f2a131f9a20bf075c2
[env: /gnu/store/q781h6gmv1n2d05gkjs0fq84fjis78v3-profile]

Throw to key `unbound-variable' with args `("resolve-interface" "no
binding `~A' in module ~A" (python (gnu packages python)) #f)'.
Backtrace:
In guix/store.scm:
   659:37 19 (thunk)
   1298:8 18 (call-with-build-handler #<procedure 7fdf50705870 at g…> …)
In guix/scripts/build.scm:
    567:2 17 (_)
In srfi/srfi-1.scm:
   673:15 16 (append-map _ _ . _)
   586:17 15 (map1 ((argument . "sbcl-glop") (build-mode . 0) (. #) …))
In guix/scripts/build.scm:
   587:31 14 (_ _)
In gnu/packages.scm:
    479:2 13 (%find-package "sbcl-glop" "sbcl-glop" #f)
    364:6 12 (find-best-packages-by-name _ _)
   294:56 11 (_ "sbcl-glop" _)
In unknown file:
          10 (force #<promise #<procedure 7fdf5072a5e0 at gnu/packag…>)
In gnu/packages.scm:
   241:33  9 (fold-packages #<procedure 7fdf4fdcf528 at gnu/package…> …)
In guix/discovery.scm:
   159:11  8 (all-modules _ #:warn _)
In srfi/srfi-1.scm:
   460:18  7 (fold #<procedure 7fdf53215f60 at guix/discovery.scm:1…> …)
In guix/discovery.scm:
   149:19  6 (_ _ ())
    116:5  5 (scheme-modules _ _ #:warn _)
In srfi/srfi-1.scm:
   691:23  4 (filter-map #<procedure 7fdf53215e00 at guix/discove…> . #)
In guix/discovery.scm:
   124:24  3 (_ . _)
In guix/ui.scm:
    319:2  2 (report-unbound-variable-error _ #:frame _)
In ice-9/boot-9.scm:
  1685:16  1 (raise-exception _ #:continuable? _)
  1685:16  0 (raise-exception _ #:continuable? _)

ice-9/boot-9.scm:1685:16: In procedure raise-exception:
Throw to key `match-error' with args `("match" "no matching pattern"
(unbound-variable "resolve-interface" "no binding `~A' in module ~A"
(python (gnu packages python)) #f))'.



-- 
… наш разум - превосходная объяснительная машина которая способна
найти смысл почти в чем угодно, истолковать любой феномен, но
совершенно не в состоянии принять мысль о непредсказуемости.