From b322a8bd3b58b5644aae6fe0a9ab0fb1c66e996a Mon Sep 17 00:00:00 2001
From: Will Dietz <w@wdtz.org>
Date: Sun, 23 Sep 2018 22:01:45 -0500
Subject: [PATCH] bitcoin: parallel build, please! :)

(cherry picked from commit dba5534b06c7dffe97ce644b0a5790aca8527a2e)
---
 pkgs/applications/altcoins/bitcoin.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/applications/altcoins/bitcoin.nix b/pkgs/applications/altcoins/bitcoin.nix
index fbc22935d8c0..38ce46163be6 100644
--- a/pkgs/applications/altcoins/bitcoin.nix
+++ b/pkgs/applications/altcoins/bitcoin.nix
@@ -33,6 +33,8 @@ stdenv.mkDerivation rec{
   # find or load the Qt platform plugin "minimal""
   doCheck = false;
 
+  enableParallelBuilding = true;
+
   meta = {
     description = "Peer-to-peer electronic cash system";
     longDescription= ''