Open camthehaxman opened 2 months ago
Those members have been protected
since FLTK 1.3.1. They are not private.
You must either be building with an old version of FLTK, or FLTK_ABI_VERSION
was unset when your FLTK lib was built. Please review INSTALL.md.
It looks like this code tries to access some private fields of the Fl_Spinner class, and that is not allowed!