From c3428a08bef079c107ad3e2cd396192a3eec071e Mon Sep 17 00:00:00 2001
From: Ludovic Courtès <ludo@gnu.org>
Date: Sun, 15 Jun 2014 21:10:58 +0200
Subject: gnu: apr: Build sequentially.

* gnu/packages/apr.scm (apr)[arguments]: New field.
---
 gnu/packages/apr.scm | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/gnu/packages/apr.scm b/gnu/packages/apr.scm
index cfb3b6acd5..93609ad5ca 100644
--- a/gnu/packages/apr.scm
+++ b/gnu/packages/apr.scm
@@ -40,6 +40,11 @@ (define-public apr
               (list (search-patch "apr-skip-getservbyname-test.patch")))
              (patch-flags '("-p0"))))
     (build-system gnu-build-system)
+    (arguments
+     ;; Sometimes we end up with two processes concurrently trying to make
+     ;; 'libmod_test.la': <http://hydra.gnu.org/build/60266/nixlog/2/raw>.
+     ;; Thus, build sequentially.
+     '(#:parallel-build? #f))
     (inputs `(("perl" ,perl)
               ("libtool" ,libtool)))
     (home-page "http://apr.apache.org/")
-- 
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