-extern void _nc_free_and_exit(int) GCC_NORETURN;
-extern void _nc_free_tparm(void);
-extern void _nc_leaks_dump_entry(void);
+extern NCURSES_EXPORT(void) _nc_free_and_exit(int) GCC_NORETURN;
+extern NCURSES_EXPORT(void) _nc_free_tinfo(int) GCC_NORETURN;
+extern NCURSES_EXPORT(void) _nc_free_tic(int) GCC_NORETURN;
+extern NCURSES_EXPORT(void) _nc_free_tparm(void);
+extern NCURSES_EXPORT(void) _nc_leaks_dump_entry(void);
+extern NCURSES_EXPORT(void) _nc_leaks_tic(void);