From d8e87fc0c4357d9683f7b9fa4bea8faa34bb7693 Mon Sep 17 00:00:00 2001
From: David Johnson <djohnson.m@gmail.com>
Date: Wed, 19 Apr 2017 15:20:51 -0500
Subject: [PATCH] Disable parallel building

---
 pkgs/development/compilers/halvm/2.4.0.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pkgs/development/compilers/halvm/2.4.0.nix b/pkgs/development/compilers/halvm/2.4.0.nix
index 08e74bdb78e9..c42ca4edb4ac 100644
--- a/pkgs/development/compilers/halvm/2.4.0.nix
+++ b/pkgs/development/compilers/halvm/2.4.0.nix
@@ -6,6 +6,7 @@ stdenv.mkDerivation rec {
   version = "2.4.0";
   name = "HaLVM-${version}";
   isHaLVM = true;
+  enableParallelBuilding = false;
   isGhcjs = false;
   src = fetchgit {
     rev = "65fad65966eb7e60f234453a35aeb564a09d2595";