From 0cc883f2ee12b8454bfff63d0d26c99bc8da2ca7 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Wed, 13 May 2015 13:47:41 +0200
Subject: [PATCH] groff: Mark as unsafe for parallel building

---
 pkgs/tools/text/groff/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/tools/text/groff/default.nix b/pkgs/tools/text/groff/default.nix
index 90beca862c0..b0421a8ed0d 100644
--- a/pkgs/tools/text/groff/default.nix
+++ b/pkgs/tools/text/groff/default.nix
@@ -8,6 +8,8 @@ stdenv.mkDerivation rec {
     sha256 = "1998v2kcs288d3y7kfxpvl369nqi06zbbvjzafyvyl3pr7bajj1s";
   };
 
+  enableParallelBuilding = false;
+
   buildInputs = [ ghostscript ];
   nativeBuildInputs = [ perl ];