From f6f4f1ab4a0bd758d9c454cc57915ab5b47924a1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rg=20Thalheim?= <joerg@thalheim.io>
Date: Tue, 8 Dec 2020 10:33:35 +0100
Subject: [PATCH] graphviz: enable parallel building

it's autotools so it should be safe
---
 pkgs/tools/graphics/graphviz/base.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/tools/graphics/graphviz/base.nix b/pkgs/tools/graphics/graphviz/base.nix
index a65f5ce455c3..cdec84270052 100644
--- a/pkgs/tools/graphics/graphviz/base.nix
+++ b/pkgs/tools/graphics/graphviz/base.nix
@@ -79,6 +79,8 @@ stdenv.mkDerivation {
       --replace /usr/bin/vimdot $out/bin/vimdot \
   '';
 
+  enableParallelBuilding = true;
+
   meta = with stdenv.lib; {
     homepage = "https://graphviz.org";
     description = "Graph visualization tools";