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authorLudovic Courtès <ludo@gnu.org>2020-11-30 23:16:57 +0100
committerLudovic Courtès <ludo@gnu.org>2020-12-01 00:10:48 +0100
commit07a33b1d21e240781072352f93206cfdc765f907 (patch)
treef338a3bf99cb8dac98dbfe23ceeb6c46e4fc3fed /gnu/services.scm
parent56fc14577e6750928091b525a235fa428346d598 (diff)
downloadguix-07a33b1d21e240781072352f93206cfdc765f907.tar.gz
services: profile: Create manifest at monadic-bind time.
Fixes <https://bugs.gnu.org/44952>.
Reported by Mathieu Othacehe <othacehe@gnu.org>.

* gnu/services.scm (packages->profile-entry): Change 'with-monad' to
'mlet' with one binding.
Diffstat (limited to 'gnu/services.scm')
-rw-r--r--gnu/services.scm8
1 files changed, 7 insertions, 1 deletions
diff --git a/gnu/services.scm b/gnu/services.scm
index 4b30399adc..13259dfaee 100644
--- a/gnu/services.scm
+++ b/gnu/services.scm
@@ -788,7 +788,13 @@ executables, making them setuid-root.")))
 
 (define (packages->profile-entry packages)
   "Return a system entry for the profile containing PACKAGES."
-  (with-monad %store-monad
+  ;; XXX: 'mlet' is needed here for one reason: to get the proper
+  ;; '%current-target' and '%current-target-system' bindings when
+  ;; 'packages->manifest' is called, and thus when the 'package-inputs'
+  ;; etc. procedures are called on PACKAGES.  That way, conditionals in those
+  ;; inputs see the "correct" value of these two parameters.  See
+  ;; <https://issues.guix.gnu.org/44952>.
+  (mlet %store-monad ((_ (current-target-system)))
     (return `(("profile" ,(profile
                            (content (packages->manifest
                                      (delete-duplicates packages eq?)))))))))