anchor.diff: -{ stdenv, lib, fetchurl, jdk, zip, unzip, bash, writeScriptBin, coreutils, makeWrapper, which, python }:
  +{ stdenv, lib, fetchurl, jdk, zip, unzip, bash, writeScriptBin, coreutils, makeWrapper, which, python
  +# Always assume all markers valid (don't redownload dependencies).
  +# Also, don't clean up environment variables.
  +, enableNixHacks ? false
  +}:
   
   stdenv.mkDerivation rec {
   
  
positive.code:   };
  
    sourceRoot = ".";
  
    # Bazel expects several utils to be available in Bash even without PATH. Hence this hack.
  
  
negative.code:   '';
  
    # Bazel expects gcc and java to be in the path.
    installPhase = ''
      mkdir -p $out/bin
      mv output/bazel $out/bin
  