bug#25235: [PATCH 1/1] build-system/pyproject: Do not wrap native-inputs.

[Maxim Cournoyer]

Fixes <https://issues.guix.gnu.org/25235>.

* guix/build/pyproject-build-system.scm (wrap) [native-inputs]: New argument.
Filter out native inputs from the values in GUIX_PYTHONPATH.

---

 guix/build/pyproject-build-system.scm | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/guix/build/pyproject-build-system.scm 
b/guix/build/pyproject-build-system.scm
index a66c1fb34a..cd418f7ec9 100644
--- a/guix/build/pyproject-build-system.scm
+++ b/guix/build/pyproject-build-system.scm
@@ -445,7 +445,7 @@ (define* (add-install-to-pythonpath #:key native-inputs 
outputs
   "A phase that just wraps the 'add-installed-pythonpath' procedure."
   (add-installed-pythonpath native-inputs outputs))
 
-(define* (wrap #:key inputs outputs #:allow-other-keys)
+(define* (wrap #:key native-inputs inputs outputs #:allow-other-keys)
   (define (list-of-files dir)
     (find-files dir (lambda (file stat)
                       (and (eq? 'regular (stat:type stat))
@@ -464,9 +464,17 @@ (define bindirs
   (define %guile (delay (search-input-file inputs "bin/guile")))
   (define (guile) (force %guile))
 
-  (let* ((var `("GUIX_PYTHONPATH" prefix
-                ,(search-path-as-string->list
-                  (or (getenv "GUIX_PYTHONPATH") "")))))
+  ;; Use the same strategy to compute the native-input file names.
+  (define %native-input-dirs (delay (match native-inputs
+                                      (((_ . dir) ...)
+                                       dir))))
+  (define (native-input-dirs) (force %native-input-dirs))
+
+  (let ((var `("GUIX_PYTHONPATH" prefix
+               ,(remove (lambda (x)
+                          (any (cut string-prefix? <> x) (native-input-dirs)))
+                        (search-path-as-string->list
+                         (or (getenv "GUIX_PYTHONPATH") ""))))))
     (for-each (lambda (dir)
                 (let ((files (list-of-files dir)))
                   (for-each (cut wrap-script <> #:guile (guile) var)
-- 
2.38.1