[bug#68315] [PATCH 36/48] build-system: r: Redefine r-build.

[Nicolas Graves]

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

Change-Id: I8f5a76eac6b65beba95852b7bf1645cd8a7b255a
---
 guix/build-system/r.scm | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/guix/build-system/r.scm b/guix/build-system/r.scm
index 7ab4db82b6..e6e3a99a8d 100644
--- a/guix/build-system/r.scm
+++ b/guix/build-system/r.scm
@@ -1,6 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2015-2023 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2021 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2024 Nicolas Graves <ngraves@ngraves.fr>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -135,12 +136,8 @@ (define builder
                                            search-paths))
                    #:inputs #$(input-tuples->gexp inputs)))))
 
-  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
-                                                  system #:graft? #f)))
-    (gexp->derivation name builder
-                      #:system system
-                      #:guile-for-build guile
-                      #:substitutable? substitutable?)))
+  (mbegin %store-monad
+    (return builder)))
 
 (define r-build-system
   (build-system
-- 
2.41.0