anchor.diff: -{ stdenv, fetchurl, jre, makeWrapper, bash, coreutils, gnugrep, gnused,
  +{ stdenv, fetchurl, jre, makeWrapper, bash, coreutils, gnugrep, gnused, ps,
     majorVersion ? "1.0" }:
   
   let
  
positive.code:     inherit sha256;
    };
  
    buildInputs = [ jre makeWrapper bash gnugrep gnused coreutils ];
  
    installPhase = ''
      mkdir -p $out
  
negative.code:     # allow us the specify logging directory using env
      substituteInPlace $out/bin/kafka-run-class.sh \
        --replace 'LOG_DIR="$base_dir/logs"' 'LOG_DIR="$KAFKA_LOG_DIR"'
  
      substituteInPlace $out/bin/kafka-server-stop.sh \
        --replace 'ps' '${ps}/bin/ps'
  
      for p in $out/bin\/*.sh; do
        wrapProgram $p \
  