From 01a4d957dd46bfffd792fea07bb9784a8f2931af Mon Sep 17 00:00:00 2001
From: WilliButz <wbutz@cyberfnord.de>
Date: Fri, 20 Apr 2018 14:55:01 +0200
Subject: [PATCH] openssl: enable parallel building

There is no improvement for the build duration of openssl 1.0
but the one of openssl 1.1 is reduced significantly.
---
 pkgs/development/libraries/openssl/default.nix | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/pkgs/development/libraries/openssl/default.nix b/pkgs/development/libraries/openssl/default.nix
index 5a9052222cb8..370616745d33 100644
--- a/pkgs/development/libraries/openssl/default.nix
+++ b/pkgs/development/libraries/openssl/default.nix
@@ -71,8 +71,7 @@ let
 
     makeFlags = [ "MANDIR=$(man)/share/man" ];
 
-    # Parallel building is broken in OpenSSL.
-    enableParallelBuilding = false;
+    enableParallelBuilding = true;
 
     postInstall = ''
       # If we're building dynamic libraries, then don't install static