From 2a43df2270345babd768b0057d3cccdf08398e77 Mon Sep 17 00:00:00 2001
From: Efraim Flashner <efraim@flashner.co.il>
Date: Wed, 25 Jul 2018 16:33:37 +0300
Subject: [PATCH] gnu: qt: Disable parallel building.

* gnu/packages/qt.scm (qt)[arguments]: Disable parallel-build.
---
 gnu/packages/qt.scm | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/qt.scm b/gnu/packages/qt.scm
index c5ae067bdf..19dc6353f2 100644
--- a/gnu/packages/qt.scm
+++ b/gnu/packages/qt.scm
@@ -226,7 +226,8 @@ system, and the core design of Django is reused in Grantlee.")
        ("ruby" ,ruby)
        ("which" ,(@ (gnu packages base) which))))
     (arguments
-     `(#:phases
+     `(#:parallel-build? #f ; Triggers race condition in qtbase module on Hydra.
+       #:phases
        (modify-phases %standard-phases
          (add-after 'configure 'patch-bin-sh
            (lambda _