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-rw-r--r--guix/store.scm14
1 files changed, 8 insertions, 6 deletions
diff --git a/guix/store.scm b/guix/store.scm
index 688ddbe714..4d078c5899 100644
--- a/guix/store.scm
+++ b/guix/store.scm
@@ -238,12 +238,14 @@
"Write SIZE bytes from FILE to output port P."
(define (call-with-binary-input-file file proc)
;; Open FILE as a binary file. This avoids scan-for-encoding, and thus
- ;; avoids any initial buffering.
- (let ((port (open-file file "rb")))
- (catch #t (cut proc port)
- (lambda args
- (close-port port)
- (apply throw args)))))
+ ;; avoids any initial buffering. Disable file name canonicalization to
+ ;; avoid stat'ing like crazy.
+ (with-fluids ((%file-port-name-canonicalization #f))
+ (let ((port (open-file file "rb")))
+ (catch #t (cut proc port)
+ (lambda args
+ (close-port port)
+ (apply throw args))))))
(define (dump in size)
(define buf-size 65536)