From 5f6d02dbe77d6e43e6bad87976c54669879cdf84 Mon Sep 17 00:00:00 2001
From: Ricardo Wurmus <rekado@elephly.net>
Date: Wed, 27 Nov 2024 17:23:30 +0100
Subject: [PATCH] gnu: r-brms: Fix vignettes.

* gnu/packages/cran.scm (r-brms)[arguments]: Add phase 'set-HOME.

Change-Id: Ife0fcc2352b8bf47356c1684687fdf26b0281f6f
---
 gnu/packages/cran.scm | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/gnu/packages/cran.scm b/gnu/packages/cran.scm
index be93486d3ec..4f99e527290 100644
--- a/gnu/packages/cran.scm
+++ b/gnu/packages/cran.scm
@@ -37780,6 +37780,14 @@ inference diagnostics.
          "1gl1pdna356mfrf9816rqx8q7a3h3xzkn75bjd2zylgqw49ss88p"))))
     (properties `((upstream-name . "brms")))
     (build-system r-build-system)
+    (arguments
+     (list
+      #:phases
+      '(modify-phases %standard-phases
+         ;; When there is no HOME directory, this package will fail to find
+         ;; the vignette builder.
+         (add-after 'unpack 'set-HOME
+           (lambda _ (setenv "HOME" "/tmp"))))))
     (propagated-inputs
      (list r-abind
            r-backports