xti sample failed to build because XTI (eXtended RTTI) is not enabled

[asmwarrior]

-------------- Build: win_gcc in xti (compiler: GNU GCC Compiler)---------------

[ 20.0%] g++.exe -Wall -IF:/msys2/mingw64/lib/wx/include/msw-unicode-3.2 -IF:/msys2/mingw64/include/wx-3.2 -mthreads -D_FILE_OFFSET_BITS=64 -DWXUSINGDLL -D__WXMSW__ -DHAVE_W32API_H -D_UNICODE -fmessage-length=0 -pipe  -c F:\code\cb_projects_for_wxWidgets\samples\xti\classlist.cpp -o .objs\win_gcc\classlist.o
F:\code\cb_projects_for_wxWidgets\samples\xti\classlist.cpp:27:6: error: #error This sample requires XTI (eXtended RTTI) enabled
   27 |     #error This sample requires XTI (eXtended RTTI) enabled
      |      ^~~~~
F:\code\cb_projects_for_wxWidgets\samples\xti\classlist.cpp: In member function 'bool ClassListDialog::IsToDiscard(const wxString&) const':
F:\code\cb_projects_for_wxWidgets\samples\xti\classlist.cpp:270:15: error: 'class wxClassInfo' has no member named 'GetFirstProperty'
  270 |     if (info->GetFirstProperty() != NULL || info->GetFirstHandler() != NULL)
      |               ^~~~~~~~~~~~~~~~
F:\code\cb_projects_for_wxWidgets\samples\xti\classlist.cpp:270:51: error: 'class wxClassInfo' has no member named 'GetFirstHandler'
  270 |     if (info->GetFirstProperty() != NULL || info->GetFirstHandler() != NULL)