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-rw-r--r--gnu/packages/ocaml.scm4
1 files changed, 4 insertions, 0 deletions
diff --git a/gnu/packages/ocaml.scm b/gnu/packages/ocaml.scm
index 3c781d51e4..4510affe0f 100644
--- a/gnu/packages/ocaml.scm
+++ b/gnu/packages/ocaml.scm
@@ -4710,6 +4710,10 @@ the OCaml language.")
        #:tests? #f
        #:phases
        (modify-phases %standard-phases
+         (add-before 'configure 'make-deterministic
+           (lambda _
+             (substitute* "Makefile.in"
+               (("`date`") "no date for reproducibility"))))
          (add-before 'configure 'configure-for-release
            (lambda _
              (substitute* "Makefile.in"