From a5f199732ba918b9486852308c5e19a73c8b48ff Mon Sep 17 00:00:00 2001
From: Ricardo Wurmus <rekado@elephly.net>
Date: Sun, 14 Aug 2022 20:57:55 +0200
Subject: [PATCH] gnu: r-reticulate: Build reproducibly.

* gnu/packages/cran.scm (r-reticulate)[arguments]: Add build phase
'build-reproducibly to ensure that pyc files are built reproducibly.
---
 gnu/packages/cran.scm | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/gnu/packages/cran.scm b/gnu/packages/cran.scm
index 4ad1bfa760..f76f50b68d 100644
--- a/gnu/packages/cran.scm
+++ b/gnu/packages/cran.scm
@@ -9216,6 +9216,14 @@ always locate the files relative to your project root.")
         (base32
          "0b1szzsqyc8wcfpkn5517bb1ds064vs2hky71my3p74kfngay991"))))
     (build-system r-build-system)
+    (arguments
+     (list
+      #:phases
+      '(modify-phases %standard-phases
+         (add-after 'unpack 'build-reproducibly
+           (lambda _
+             (setenv "PYTHONHASHSEED" "0")
+             (setenv "PYTHONDONTWRITEBYTECODE" "1"))))))
     (inputs (list python))
     (propagated-inputs
      (list r-here