From 850f7873452a8936c5cdb5206aac728e18c44d4c Mon Sep 17 00:00:00 2001
From: Julien Lepiller <julien@lepiller.eu>
Date: Thu, 6 Jun 2019 20:09:34 +0200
Subject: gnu: ocaml-batteries: Fix non determinism.

* gnu/packages/ocaml.scm (ocaml-batteries)[arguments]: Fix non
deterministic file ordering.
---
 gnu/packages/ocaml.scm | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'gnu/packages/ocaml.scm')

diff --git a/gnu/packages/ocaml.scm b/gnu/packages/ocaml.scm
index 492149af9a..bd66ab04aa 100644
--- a/gnu/packages/ocaml.scm
+++ b/gnu/packages/ocaml.scm
@@ -2297,6 +2297,12 @@ many additional enhancements, including:
      `(#:phases
        (modify-phases %standard-phases
          (delete 'check) ; tests are run by the build phase
+         (add-before 'build 'fix-nondeterminism
+           (lambda _
+             (substitute* "setup.ml"
+               (("Sys.readdir dirname")
+                "let a = Sys.readdir dirname in Array.sort String.compare a; a"))
+             #t))
          (replace 'build
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (let ((files
-- 
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