Hi, ALL, Don't know how many 2.8 releases will be...
You can't use "--disable-radiobtn" on wxGTK at least on 2.8.10.
In src/gtk/window.cpp wxWindowGTK::SetFocus() references wxRadioButton class and it does have wxRADIO_BUTTON guard.
It is useful when you are trying to build very minimal wx configuration for embedded devices with the low memory.
Thank you.