#if defined(__BIONIC_FORTIFY)
extern void __FD_CLR_chk(int, fd_set*, size_t);
extern void __FD_SET_chk(int, fd_set*, size_t);
#if defined(__BIONIC_FORTIFY)
extern void __FD_CLR_chk(int, fd_set*, size_t);
extern void __FD_SET_chk(int, fd_set*, size_t);