char * err_winmem = "Trouble with init_win_meta() in main ().";
exit_err(init_win_meta(screen, &world.wmeta), &world, err_winmem);
set_cleanup_flag(CLEANUP_WIN_META);
char * err_winmem = "Trouble with init_win_meta() in main ().";
exit_err(init_win_meta(screen, &world.wmeta), &world, err_winmem);
set_cleanup_flag(CLEANUP_WIN_META);