From c86c71c2b1feac19f3363662cf20abc88ab47e03 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <edolstra@gmail.com>
Date: Mon, 13 Jan 2020 21:44:35 +0100
Subject: [PATCH] Test PRECOMPILE_HEADERS=0

---
 release.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/release.nix b/release.nix
index 287b5294a..db2b5ef05 100644
--- a/release.nix
+++ b/release.nix
@@ -240,6 +240,8 @@ let
         name = "nix-build";
         src = tarball;
 
+        enableParallelBuilding = true;
+
         buildInputs = buildDeps;
 
         dontInstall = false;
@@ -252,6 +254,9 @@ let
         # syntax-check generated dot files, it still requires some
         # fonts.  So provide those.
         FONTCONFIG_FILE = texFunctions.fontsConf;
+
+        # To test building without precompiled headers.
+        makeFlagsArray = [ "PRECOMPILE_HEADERS=0" ];
       };