anchor.diff:  args : with args; 
  -let version = lib.attrByPath ["version"] "r46507" args; in
  +let version = lib.attrByPath ["version"] "r46684" args; in
   rec {
     src = fetchurl {
       url = "http://nightly.webkit.org/files/trunk/src/WebKit-${version}.tar.bz2";
  -    sha256 = "18l435dgg3spgz10z05gw6cyxcm71y01l3qxy38ik43brws1hsvy";
  +    sha256 = "0rvmz1w83slkp8khvnq8akjbd2nfwz4miq6fg0d6nkxd83d9i7d3";
     };
   
     buildInputs = [gtk atk cairo curl fontconfig freetype
  
positive.code:   configureFlags = [];
  
    /* doConfigure should be specified separately */
    phaseNames = ["setVars" "fixTypos" "paranoidFixComments" "doConfigure" (doPatchShebangs ".") 
      "doReplaceUsrBin" "doMakeInstall" "doAddPrograms"];
  
    setVars = fullDepEntry (''
  
negative.code:     sed -re 's@( |^)//.*@/* & */@' -i $(find . -name '*.c' -o -name '*.h')
    '') ["minInit" "doUnpack"];
  
    name = "webkit-" + version;
    meta = {
      description = "WebKit - a fast and correct HTML renderer";
  