From e0611e9a84fdf7954e98ebe21ac8e36dfaf0a707 Mon Sep 17 00:00:00 2001
From: Eric Bavier <bavier@member.fsf.org>
Date: Thu, 21 Feb 2019 22:17:05 -0600
Subject: gnu: cdrtools: Disable build parallelism.

* gnu/packages/cdrom.scm (cdrtools)[arguments]: Add '#:parallel-build? #f'.
---
 gnu/packages/cdrom.scm | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/gnu/packages/cdrom.scm b/gnu/packages/cdrom.scm
index 546e1a20d0..cdbe25fe44 100644
--- a/gnu/packages/cdrom.scm
+++ b/gnu/packages/cdrom.scm
@@ -251,6 +251,9 @@ reconstruction capability.")
              "CONFIG_SHELL=sh" "CCOM=gcc"
              (string-append "INS_BASE=" (assoc-ref %outputs "out"))
              (string-append "INS_RBASE=" (assoc-ref %outputs "out")))
+       ;; Parallel builds appear to be unsafe, see
+       ;; https://hydra.gnu.org/build/3346840/log/raw
+       #:parallel-build? #f
        #:phases
        (modify-phases %standard-phases
          (delete 'configure)
-- 
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