anchor.diff:  
     installPhase = ''
       python build.py install --prefix="$out"
  +    wrapProgram $out/bin/gede \
  +      --prefix PATH : ${stdenv.lib.makeBinPath [ ctags gdb ]}
     '';
   
     meta = with stdenv.lib; {
  
positive.code: { stdenv, fetchurl, ctags, qt4, python }:
  
  stdenv.mkDerivation rec {
    name = "gede-${version}";
  
negative.code:     sha256 = "1znlmkjgrmjl79q73xaa9ybp1xdc3k4h4ynv3jj5z8f92gjnj3kk";
    };
  
    nativeBuildInputs = [ makeWrapper python ];
  
    buildInputs = [ qt4 ];
  
    postPatch = ''
      sed -i build.py -e 's,qmake-qt4,qmake,'
  