anchor.diff:  stdenv.mkDerivation {
     inherit (s) name version;
     inherit buildInputs;
  -  src = fetchurl {
  -    inherit (s) url sha256;
  +  src = fetchgit {
  +    inherit (s) url sha256 rev;
     };
     makeFlags = ["PREFIX=$(out)"];
     preConfigure = ""
  
positive.code:     platforms = stdenv.lib.platforms.linux;
      homepage = "http://tools.suckless.org/sinit";
      downloadPage = "http://git.suckless.org/sinit";
      updateWalker = true;
    };
  }
  
negative.code: {stdenv, fetchgit, rcinit ? null, rcshutdown ? null, rcreboot ? null}:
  let
    s = # Generated upstream information
    rec {
      baseName="sinit";
      version="0.9.2";
      name="${baseName}-${version}";
      url="http://git.suckless.org/sinit/";
      sha256="0nncyzwnszwlqcvx1jf42rn1n2dd5vcxkndqb1b546pgpifniivp";
      rev = "refs/tags/v${version}";
    };
    buildInputs = [
    ];
  