title: Could NOT find Qt5WebKitWidgets
body: <p>I am trying to build nextcloud open source project. I am using built tools Qt 5.6 version. following errors has occurred-</p>
  
  <blockquote>
    <p>-- Could NOT find Qt5WebKitWidgets (missing: Qt5WebKitWidgets_DIR)</p>
  </blockquote>
  
  <p>CMake Warning at src/gui/CMakeLists.txt:313 (find_package):</p>
  
  <blockquote>
    <p>Found package configuration file:</p>
    
    <p>C:/Qt/Qt5.6.0/5.6/mingw49_32/lib/cmake/Qt5/Qt5Config.cmake</p>
  </blockquote>
  
  <p>but it sets Qt5_FOUND to FALSE so package "Qt5" is considered to be NOT
  FOUND.  Reason given by package:</p>
  
  <blockquote>
    <p>Failed to find Qt5 component "WebKitWidgets" config file at<br>
    C:/Qt/Qt5.6.0/5.6/mingw49_32/lib/cmake/Qt5WebKitWidgets/
    Qt5WebKitWidgetsConfig.cmake</p>
  </blockquote>