zopfli: disable parallel building

It was failing often, e.g.: https://hydra.nixos.org/build/32101335/nixlog/1/raw
2016-03-23 20:20:36 +01:00 · 2016-03-23 20:20:36 +01:00 · b336ed89e6
commit b336ed89e6
parent 5e93b6d929
1 changed files with 1 additions and 1 deletions
--- a/pkgs/tools/compression/zopfli/default.nix
+++ b/pkgs/tools/compression/zopfli/default.nix
@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
    })
  ];
-  enableParallelBuilding = true;
+  enableParallelBuilding = false; # problems, easily reproducible
  buildFlags = [
    "zopfli"
    "libzopfli"