From b717d0f90eed10c1173ba10b30db82d502b5b9df Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ludovic=20Court=C3=A8s?= <ludo@gnu.org>
Date: Sun, 10 Feb 2019 12:10:17 +0100
Subject: [PATCH] gnu: qtwebkit: Build sequentially.

Fixes <https://bugs.gnu.org/34062>.

* gnu/packages/qt.scm (qtwebkit)[arguments]: Add #:parallel-build? #f.
---
 gnu/packages/qt.scm | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/gnu/packages/qt.scm b/gnu/packages/qt.scm
index 2e8f2d1135..6775a991b9 100644
--- a/gnu/packages/qt.scm
+++ b/gnu/packages/qt.scm
@@ -2173,6 +2173,11 @@ different kinds of sliders, and much more.")
     (arguments
      `(#:tests? #f ; no apparent tests; it might be necessary to set
                    ; ENABLE_API_TESTS, see CMakeLists.txt
+
+       ;; Parallel builds fail due to a race condition:
+       ;; <https://bugs.gnu.org/34062>.
+       #:parallel-build? #f
+
        #:configure-flags (list ;"-DENABLE_API_TESTS=TRUE"
                                "-DPORT=Qt"
                                "-DUSE_LIBHYPHEN=OFF"