anchor.diff:  { fetchurl, stdenv, python, bash }:
   
   let 
  -  version = "21.5.8";
  +  version = "21.6.9";
   in
     stdenv.mkDerivation rec {
       name = "autojump-${version}";
  
positive.code:     src = fetchurl {
        url = "http://github.com/joelthelion/autojump/archive/release-v${version}.tar.gz";
        name = "autojump-${version}.tar.gz";
        sha256 = "07jf5pa9xwmbswsc0h6law9f5qwczsj25w7h034s379imid5h62f";
      };
  
      buildInputs = [ python bash ];
  
negative.code:       sed -i -e 150,153d install.sh
  
        bash ./install.sh -d $out
        chmod +x $out/etc/profile.d/*
  
        mkdir -p "$out/etc/bash_completion.d"
        cp -v $out/etc/profile.d/autojump.bash "$out/etc/bash_completion.d"
  