Added --enable-extended_rtti configure switch (defaults to disabled).

Fix compilation when WXINTL_NO_GETTEXT_MACRO is defined.
  Added wx/flags.h to installed files.
  Fix XTI compilation after wxString changes.
  Fix 'virtual functions but non-virtual destructor' GCC warnings.
  Minimal XTI definition for wxOwnerDrawnComboBox (cut'n'paste
from wxComboBox, will need to be completed).
  Requires rerunning bakefile and autoconf.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@45397 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/xtistrm.cpp

@@ -389,7 +389,7 @@ bool wxReader::HasObjectClassInfo( int objectID )
     if ( objectID == wxNullObjectID || objectID == wxInvalidObjectID )
     {
         wxLogError( _("Invalid or Null Object ID passed to HasObjectClassInfo" ) ) ;
-        return NULL ;
+        return false ;
     }
     return m_data->m_classInfos.find(objectID) != m_data->m_classInfos.end() ;
 }