[bug#68315] [PATCH 33/48] build-system: pyproject: Redefine pyproject-build.

[Nicolas Graves]

* guix/build-system/pyproject.scm
(pyproject-build): Monadic procedure returns a gexp instead of a derivation.

Change-Id: Ia26001291b472c69c65647d8bddd1199f0ddc483
---
 guix/build-system/pyproject.scm | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/guix/build-system/pyproject.scm b/guix/build-system/pyproject.scm
index 2a2c3af3f3..c0404d0842 100644
--- a/guix/build-system/pyproject.scm
+++ b/guix/build-system/pyproject.scm
@@ -1,6 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2021 Lars-Dominik Braun <lars@6xq.net>
 ;;; Copyright © 2022 Marius Bakke <marius@gnu.org>
+;;; Copyright © 2024 Nicolas Graves <ngraves@ngraves.fr>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -100,7 +101,7 @@ (define* (pyproject-build name inputs
                           (modules '((guix build pyproject-build-system)
                                      (guix build utils))))
   "Build SOURCE using PYTHON, and with INPUTS."
-  (define build
+  (define builder
     (with-imported-modules imported-modules
       #~(begin
           (use-modules #$@(sexp->gexp modules))
@@ -124,14 +125,8 @@ (define build
                                          search-paths))
                  #:inputs %build-inputs)))))
 
-
-  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
-                                                  system #:graft? #f)))
-    (gexp->derivation name build
-                      #:system system
-                      #:graft? #f                 ;consistent with 'gnu-build'
-                      #:target #f
-                      #:guile-for-build guile)))
+  (mbegin %store-monad
+    (return builder)))
 
 (define pyproject-build-system
   (build-system
-- 
2.41.0