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-rw-r--r--guix/build/cvs.scm5
1 files changed, 4 insertions, 1 deletions
diff --git a/guix/build/cvs.scm b/guix/build/cvs.scm
index 033b626b96..9976e624b3 100644
--- a/guix/build/cvs.scm
+++ b/guix/build/cvs.scm
@@ -52,7 +52,10 @@
"Fetch REVISION from MODULE of CVS-ROOT-DIRECTORY into DIRECTORY. REVISION
must either be a date in ISO-8601 format (e.g. \"2012-12-21\") or a CVS tag.
Return #t on success, #f otherwise."
- (and (zero? (system* cvs-command "-z3"
+ ;; Use "-z0" because enabling compression leads to hangs during checkout on
+ ;; certain repositories, such as
+ ;; ":pserver:anonymous@cvs.savannah.gnu.org:/sources/gnustandards".
+ (and (zero? (system* cvs-command "-z0"
"-d" cvs-root-directory
"checkout"
(if (string-match "^[0-9]{4}-[0-9]{2}-[0-9]{2}$" revision)