From 3b509259bf041c507dab23324ba2fedbfc7a6561 Mon Sep 17 00:00:00 2001
From: Ludovic Courtès <ludo@gnu.org>
Date: Sun, 2 Nov 2014 23:23:43 +0100
Subject: gnu: man-pages: Build sequentially.

Fixes <http://bugs.gnu.org/18701>.
Reported by Mark H Weaver <mhw@netris.org>.

* gnu/packages/man.scm (man-pages)[arguments]: Add #:parallel-build? #f.
---
 gnu/packages/man.scm | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'gnu/packages/man.scm')

diff --git a/gnu/packages/man.scm b/gnu/packages/man.scm
index c143697883..3d5d02ea64 100644
--- a/gnu/packages/man.scm
+++ b/gnu/packages/man.scm
@@ -129,6 +129,12 @@ (define-public man-pages
     (build-system gnu-build-system)
     (arguments
      '(#:phases (alist-delete 'configure %standard-phases)
+
+       ;; The 'all' target depends on three targets that directly populate
+       ;; $(MANDIR) based on its current contents.  Doing that in parallel
+       ;; leads to undefined behavior (see <http://bugs.gnu.org/18701>.)
+       #:parallel-build? #f
+
        #:tests? #f
        #:make-flags (list (string-append "MANDIR="
                                          (assoc-ref %outputs "out")
-- 
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