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-rw-r--r--guix/build/pack.scm6
1 files changed, 4 insertions, 2 deletions
diff --git a/guix/build/pack.scm b/guix/build/pack.scm
index 05c7a3c594..3b73d1b227 100644
--- a/guix/build/pack.scm
+++ b/guix/build/pack.scm
@@ -27,8 +27,10 @@ deterministically. When TAR, a GNU tar command file name, is provided, the
'(\"gzip\" \"-9n\"), is provided, the compressor is explicitly specified via
the `-I' option."
(define (tar-supports-sort? tar)
- (zero? (system* tar "cf" "/dev/null" "--files-from=/dev/null"
- "--sort=name")))
+ (with-error-to-port (%make-void-port "w")
+ (lambda ()
+ (zero? (system* tar "cf" "/dev/null" "--files-from=/dev/null"
+ "--sort=name")))))
`(,@(if compressor
(list "-I" (string-join compressor))