From 7263f7c433c840c042d315e8c2ebdb51ed19fe96 Mon Sep 17 00:00:00 2001
From: Ben Gamari <ben@smart-cactus.org>
Date: Thu, 19 Nov 2020 19:42:22 -0500
Subject: [PATCH] mathematica: Prefer building locally (#100856)

There is little benefit to copying a 4GB tarball over the network,
just to perform an I/O-bound operation and then copy the
multi-gigabyte result back.
---
 pkgs/applications/science/math/mathematica/default.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/applications/science/math/mathematica/default.nix b/pkgs/applications/science/math/mathematica/default.nix
index ace5ee55d7b1..d04a89bd8842 100644
--- a/pkgs/applications/science/math/mathematica/default.nix
+++ b/pkgs/applications/science/math/mathematica/default.nix
@@ -144,6 +144,9 @@ stdenv.mkDerivation rec {
   '';
 
   dontBuild = true;
+  
+  # This is primarily an IO bound build; there's little benefit to building remotely.
+  preferLocalBuild = true;
 
   # all binaries are already stripped
   dontStrip = true;