anchor.diff:    name = "opera-${version}";
   
     src =
  -    if stdenv.system == "i686-linux" then
  -      fetchurl {
  -        url = "${mirror}/${version}/linux/opera-stable_${version}_i386.deb";
  -        sha256 = "1a7y13mgc8g7swdg0x2l9h6cmqw74h2wxizi3vmlgz2fj5zlkn0g";
  -      }
  -    else if stdenv.system == "x86_64-linux" then
  +    #if stdenv.system == "i686-linux" then
  +    #  fetchurl {
  +    #    url = "${mirror}/${version}/linux/opera-stable_${version}_i386.deb";
  +    #    sha256 = "...";
  +    #  }
  +    #else 
  +    if stdenv.system == "x86_64-linux" then
         fetchurl {
           url = "${mirror}/${version}/linux/opera-stable_${version}_amd64.deb";
  -        sha256 = "0rmagj0s1j3a6rpyrs29xnbngsq700rgaqkph108fbnj80hif1ia";
  +        sha256 = "1ladvqilm5rr222wjybvribnyii2l0p8jbsd10xr06wps63g1kia";
         }
  -    else throw "Opera is not supported on ${stdenv.system} (only i686-linux and x86_64 linux are supported)";
  +    else throw "Opera is not supported on ${stdenv.system} (only x86_64 linux is supported)";
   
     unpackCmd = "${dpkg}/bin/dpkg-deb -x $curSrc .";
   
  
positive.code: , gdk_pixbuf
  , glib
  , gnome2
  , gtk2
  , libX11
  , libxcb
  , libXScrnSaver
  
negative.code:     gdk_pixbuf.out
      glib.out
      gnome2.GConf.out
      gtk3.out
      libX11.out
      libXScrnSaver.out
      libXcomposite.out
  