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c++x11fltk

Fl_X compile error

I have been modifying a project and now when I try to compile the software I get the following error:

In file included from main.cpp:32:0:
main.h: In member function ‘virtual void Fl_Root::show()’:
main.h:41:17: error: incomplete type ‘Fl_X’ used in nested name specifier
   if (!shown()) Fl_X::set_xid(this, RootWindow(fl_display, fl_screen));
                 ^

The menu.h file is very simple and contains just the following:

extern void ShowMenu();

class Fl_Root : public Fl_Window {
    int handle(int);
public:
    Fl_Root() : Fl_Window(0,0,Fl::w(),Fl::h()) { 
    }
    void show() {
        if (!shown()) Fl_X::set_xid(this, RootWindow(fl_display, fl_screen));
    }
    void flush() {
    }
};

Any help would greatly be appreciated!

Solution

  • Per Drew's suggestion!

    I found the problem! I commented out a "#define FL_INTERNALS 1" call before the "#include" statements - oops! Just wanted to post in case this helps someone else.