anchor.diff:  { lib
   , stdenv
  -, fetchgit
  +, fetchFromGitHub
   , xorgproto
   , libX11
   , libXft
  
positive.code: , giflib
  , pkg-config
  }:
  let
    buildInputs = [
      xorgproto
      libX11
  
negative.code:     libXinerama
      libjpeg
      giflib
    ];
    makeFlags = [ "PREFIX=$(out)" ];
    preInstall = ''
      sed -e "s@/etc/xdg@$out&@" -i Makefile
    '';
    meta = with lib; {
      description = "Expose-style compositing-based standalone window switcher";
      license = licenses.gpl2Plus;
      maintainers = with maintainers; [ raskin ];
      platforms = platforms.linux;
    };
  }
  