anchor.diff:  
     src = fetchurl {
       url = "http://webkitgtk.org/releases/${name}.tar.xz";
  -    sha256 = "082dw0d8jxvsapx30ypmy5h2srzfzi42c3zr9pbkzx1m959hq7rx";
  +    sha256 = "0vb8ca6dd9hxb5ycp54bdyykp10blbq5b6qkbak4yf9mxwi5ccj2";
     };
   
     patches = [ ./finding-harfbuzz-icu.patch ];
   
  -  cmakeFlags = [ "-DPORT=GTK" ];
  +  cmakeFlags = [ "-DPORT=GTK" "-DUSE_LIBHYPHEN=0" ];
   
     # XXX: WebKit2 missing include path for gst-plugins-base.
     # Filled: https://bugs.webkit.org/show_bug.cgi?id=148894
  
positive.code:     libsoup gtk3
    ];
  
    enableParallelBuilding = true; # build problems on Hydra
  }
  
negative.code: { stdenv, fetchurl, perl, python, ruby, bison, gperf, cmake
  , pkgconfig, gettext, gobjectIntrospection, libnotify
  , gtk2, gtk3, wayland, libwebp, enchant
  , libxml2, libsoup, libsecret, libxslt, harfbuzz, libpthreadstubs
  , enableGeoLocation ? true, geoclue2, sqlite
  