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-rw-r--r--gnu/system/file-systems.scm15
1 files changed, 14 insertions, 1 deletions
diff --git a/gnu/system/file-systems.scm b/gnu/system/file-systems.scm
index b2721f2389..708d53d0a1 100644
--- a/gnu/system/file-systems.scm
+++ b/gnu/system/file-systems.scm
@@ -19,7 +19,6 @@
(define-module (gnu system file-systems)
#:use-module (ice-9 match)
#:use-module (guix records)
- #:use-module (guix store)
#:use-module ((gnu build file-systems)
#:select (string->uuid uuid->string))
#:re-export (string->uuid
@@ -97,6 +96,20 @@
(dependencies file-system-dependencies ; list of <file-system>
(default '()))) ; or <mapped-device>
+;; Note: This module is used both on the build side and on the host side.
+;; Arrange not to pull (guix store) and (guix config) because the latter
+;; differs from user to user.
+(define (%store-prefix)
+ "Return the store prefix."
+ (cond ((resolve-module '(guix store) #:ensure #f)
+ =>
+ (lambda (store)
+ ((module-ref store '%store-prefix))))
+ ((getenv "NIX_STORE")
+ => identity)
+ (else
+ "/gnu/store")))
+
(define %not-slash
(char-set-complement (char-set #\/)))