From 4d50d79bc84845208711907020f2a871f3a433d4 Mon Sep 17 00:00:00 2001
From: Orivej Desh <orivej@gmx.fr>
Date: Wed, 22 Nov 2017 06:48:46 +0000
Subject: [PATCH] atlas: disable parallel building

---
 pkgs/development/libraries/science/math/atlas/default.nix | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/libraries/science/math/atlas/default.nix b/pkgs/development/libraries/science/math/atlas/default.nix
index becc60e68ea6..7fad5c312a01 100644
--- a/pkgs/development/libraries/science/math/atlas/default.nix
+++ b/pkgs/development/libraries/science/math/atlas/default.nix
@@ -100,7 +100,9 @@ stdenv.mkDerivation {
     fi
   '';
 
-  enableParallelBuilding = true;
+  # 1. /buildATLAS/build/bin/ATLrun.sh: multiple segfaults.
+  # 2. "atlas does its own parallel builds"
+  enableParallelBuilding = false;
 
   meta = {
     homepage = http://math-atlas.sourceforge.net/;