From 7c27e8749d193061f95befc15def3d766a6ff484 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Benno=20F=C3=BCnfst=C3=BCck?= <benno.fuenfstueck@gmail.com>
Date: Sun, 26 Apr 2020 17:19:31 +0200
Subject: [PATCH] llvm_9: mark as big-parallel

LLVM builds frequently time out on hydra at least on AArch64. Marking
big-parallel gives them more resources to finish quicker.
---
 pkgs/development/compilers/llvm/9/llvm.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pkgs/development/compilers/llvm/9/llvm.nix b/pkgs/development/compilers/llvm/9/llvm.nix
index f69f45b858b..0344caa5e8a 100644
--- a/pkgs/development/compilers/llvm/9/llvm.nix
+++ b/pkgs/development/compilers/llvm/9/llvm.nix
@@ -160,6 +160,7 @@ in stdenv.mkDerivation (rec {
 
   enableParallelBuilding = true;
 
+  requiredSystemFeatures = [ "big-parallel" ];
   meta = {
     description = "Collection of modular and reusable compiler and toolchain technologies";
     homepage    = "https://llvm.org/";