wmove() is part of the public curses API, and already defined in curses.h

src/hci/mucurses/mucurses.h

 void _wputchstr ( WINDOW *win, const chtype *chstr, int wrap, int n );
 void _wputstr ( WINDOW *win, const char *str, int wrap, int n );
 void _wcursback ( WINDOW *win );
-int wmove ( WINDOW *win, int y, int x );
 
 #endif /* _MUCURSES_H */