Untitled

%modules = ( # path to module name map
    "QtWebKit" => "$basedir/WebKit/qt/Api;$basedir/WebKit2/UIProcess/API/qt",
);
%moduleheaders = ( # restrict the module headers to those found in relative path
    "QtWebKit" => "",
);

vs

%modules = ( # path to module name map
    "QtWebKit" => "$basedir",
);
%moduleheaders = ( # restrict the module headers to those found in relative path
    "QtWebKit" => "WebKit/qt/Api;WebKit2/UIProcess/API/qt",
);