anchor.diff:      installFlags = [ "DESTDIR=$(out)" "prefix=" ];
   
       postInstall = ''
  -      # remove generated keys as non-determenistic
  -      rm $out/etc/xrdp/{rsakeys.ini,key.pem,cert.pem}
  +      # remove generated keys (as non-determenistic) and upstart script
  +      rm $out/etc/xrdp/{rsakeys.ini,key.pem,cert.pem,xrdp.sh}
   
         cp $src/keygen/openssl.conf $out/share/xrdp/openssl.conf
   
  
positive.code:       repo = "xrdp";
        rev = rev;
        fetchSubmodules = true;
        sha256 = "0a000h82728vp0abvjk2m03nqqiw2lky7kqk41b70cyd3bp0vdnz";
      };
  
      nativeBuildInputs = [ pkgconfig autoconf automake which libtool nasm ];
  
negative.code: let
    xorgxrdp = stdenv.mkDerivation rec {
      name = "xorgxrdp-${version}";
      version = "0.2.1";
    
      src = fetchFromGitHub {
        owner = "neutrinolabs";
        repo = "xorgxrdp";
        rev = "v${version}";
        sha256 = "13713qs1v79xa02iw6vaj9b2q62ix770a32z56ql05d6yvfdsfhi";
      };
  
      nativeBuildInputs = [ pkgconfig autoconf automake which libtool nasm ];
  