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-rw-r--r--guix/build/download.scm3
1 files changed, 3 insertions, 0 deletions
diff --git a/guix/build/download.scm b/guix/build/download.scm
index 2e0b019d38..7b8e1aac3b 100644
--- a/guix/build/download.scm
+++ b/guix/build/download.scm
@@ -218,6 +218,9 @@ host name without trailing dot."
(thunk)))))))
(with-https-proxy
(let ((s (open-socket-for-uri uri)))
+ ;; Buffer input and output on this port.
+ (setvbuf s _IOFBF %http-receive-buffer-size)
+
(if https?
(tls-wrap s (uri-host uri))
s)))))