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authorLudovic Courtès <ludo@gnu.org>2014-05-10 23:56:45 +0200
committerLudovic Courtès <ludo@gnu.org>2014-05-10 23:56:45 +0200
commitf3bde2ff9f19a542ccceea40e3750e1e478f245e (patch)
tree684f3f425775a3ebc3e79ec85e01c4b8cf871c45
parent023f391c7860d21aee9e9b3e601d7a81bb5d128d (diff)
downloadguix-f3bde2ff9f19a542ccceea40e3750e1e478f245e.tar.gz
vm: Fix recently-introduced regression in 'operating-system-services' use.
* gnu/system/vm.scm (operating-system-build-gid): Adjust to new return
  type of 'operating-system-services' introduced in 217a5b8.
-rw-r--r--gnu/system/vm.scm16
1 files changed, 8 insertions, 8 deletions
diff --git a/gnu/system/vm.scm b/gnu/system/vm.scm
index b20831f44d..2520853205 100644
--- a/gnu/system/vm.scm
+++ b/gnu/system/vm.scm
@@ -255,14 +255,14 @@ such as /etc files."
 
 (define (operating-system-build-gid os)
   "Return as a monadic value the group id for build users of OS, or #f."
-  (anym %store-monad
-        (lambda (service)
-          (and (equal? '(guix-daemon)
-                       (service-provision service))
-               (match (service-user-groups service)
-                 ((group)
-                  (user-group-id group)))))
-        (operating-system-services os)))
+  (mlet %store-monad ((services (operating-system-services os)))
+    (return (any (lambda (service)
+                   (and (equal? '(guix-daemon)
+                                (service-provision service))
+                        (match (service-user-groups service)
+                          ((group)
+                           (user-group-id group)))))
+                 services))))
 
 (define (operating-system-default-contents os)
   "Return a list of directives suitable for 'system-qemu-image' describing the