anchor.diff:  , glib
   , gnome2
   , gtk3
  +, lib
   , libX11
   , libxcb
   , libXScrnSaver
  
positive.code:     at-spi2-core
    ];
  
  in stdenv.mkDerivation {
  
    name = "opera-${version}";
  
    src = fetchurl {
      url = "${mirror}/${version}/linux/opera-stable_${version}_amd64.deb";
      sha256 = "04bcy9qhrhps3712k229yn58ak2j93wcp613zd6l2zxb8a286991";
    };
  
    unpackCmd = "${dpkg}/bin/dpkg-deb -x $curSrc .";
  
negative.code:       done
    '';
  
    meta = with lib; {
      homepage = "https://www.opera.com";
      description = "Web browser";
      platforms = [ "x86_64-linux" ];
      license = licenses.unfree;
    };
  }
  