Subject: [bug#61665] [PATCH] gnu: python-clingo: Fix invalid G-expression input.

From: Simon Tournier <[email-masked]>
Date: Tue, 21 Feb 2023 02:00:18 +0100

* gnu/packages/maths.scm (python-clingo)[arguments]: Add 'imported-modules'
and 'modules' in order to access to 'python:site-packages'.
[version]: Explicitly reuse from the package 'clingo'.
---

Hi,

This package seems broken:

--8<---------------cut here---------------start------------->8---
$ guix time-machine --commit=e8fcf1e424 -- build python-clingo
guix build: erreur : #<procedure version ()> : entrée G-expression invalide
--8<---------------cut here---------------end--------------->8---

The issue seems coming from the field 'version'.  Then, commit
8285093cee000d6e28c040f721ddf0be18d32c42 introduces #$version which introduces
the failure.

Well, I have not found the correct G-exp syntax for #:imported-modules.

Cheers,
simon

 gnu/packages/maths.scm | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/gnu/packages/maths.scm b/gnu/packages/maths.scm
index 1e40be8722..67634990ae 100644
--- a/gnu/packages/maths.scm
+++ b/gnu/packages/maths.scm
@@ -2703,12 +2703,20 @@ (define-public python-clingo
   (package
     (inherit clingo)
     (name "python-clingo")
+    (version (package-version clingo)) ;Fix error: invalid G-expression #$version
     (arguments
      (substitute-keyword-arguments (package-arguments clingo)
        ((#:configure-flags flags #~'())
         #~(cons* "-DCLINGO_BUILD_WITH_PYTHON=pip"
                  "-DCLINGO_USE_LIB=yes"
                  #$flags))
+       ((#:imported-modules _ '())
+        `(,@%cmake-build-system-modules
+          (guix build python-build-system)))
+       ((#:modules _ '())
+        '((guix build cmake-build-system)
+          ((guix build python-build-system) #:prefix python:)
+          (guix build utils)))
        ((#:phases phases #~%standard-phases)
         #~(modify-phases #$phases
             (add-after 'unpack 'fix-failing-tests

base-commit: e8fcf1e42438113d7e4be82dc5a06de45eaceb76
-- 
2.38.1