From a4833730c409ee10003a47ba4ddff00c98a35f0e Mon Sep 17 00:00:00 2001
From: Tuomas Tynkkynen <tuomas@tuxera.com>
Date: Sun, 22 Oct 2017 18:19:03 +0300
Subject: [PATCH] cntk: Disable parallel building

https://hydra.nixos.org/build/62781346
---
 pkgs/applications/science/math/cntk/default.nix | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pkgs/applications/science/math/cntk/default.nix b/pkgs/applications/science/math/cntk/default.nix
index 80a5f6f032b7..89ed0582b37e 100644
--- a/pkgs/applications/science/math/cntk/default.nix
+++ b/pkgs/applications/science/math/cntk/default.nix
@@ -87,7 +87,8 @@ in stdenv.mkDerivation rec {
 
   hardeningDisable = [ "format" ];
 
-  enableParallelBuilding = true;
+  # on 2.2: fatal error: tensorboard/tensorboard.pb.h: No such file or directory
+  enableParallelBuilding = false;
 
   meta = with lib; {
     homepage = "https://github.com/Microsoft/CNTK";