Building FPC with the -dENABLE_DELPHI_RTTI flag still does not allow access to TPoint and TRect members

The TPoint and TRect records are in the Classes module, which is a member of RTL. By adding the -dENABLE_DELPHI_RTTI option when building FPC, I get the ability to dynamically control the graphical classes, but these records remain uncontrolled until I force the {$RTTI EXPLICIT ... } flag to be enabled in typshrdh.inc.