From 254e2cc982808467539b232ffe8f15348b84c36f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20=C4=8Cun=C3=A1t?= <vcunat@gmail.com>
Date: Wed, 30 Mar 2016 22:17:59 +0200
Subject: [PATCH] hhvm: disable parallel building

/cc #14151.
http://hydra.nixos.org/build/33846692/nixlog/1/tail
---
 pkgs/development/compilers/hhvm/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/development/compilers/hhvm/default.nix b/pkgs/development/compilers/hhvm/default.nix
index d976b6edab84..23f0484e8ead 100644
--- a/pkgs/development/compilers/hhvm/default.nix
+++ b/pkgs/development/compilers/hhvm/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
       gmp libyaml libedit libvpx imagemagick fribidi gperf
     ];
 
-  enableParallelBuilding = true;
+  enableParallelBuilding = false; # occasional build problems;
   dontUseCmakeBuildDir = true;
   NIX_LDFLAGS = "-lpam -L${pam}/lib";
   MYSQL_INCLUDE_DIR="${mariadb}/include/mysql";