__set_errno (ENOSYS); return -1;
return ENOSYS;
posix_fadvise (int fd, off_t offset, off_t len, int advise){#ifdef __NR_fadvise64  return INLINE_SYSCALL (fadvise64, 5, fd,			 __LONG_LONG_PAIR (offset >> 31, offset), len, advise);#else  __set_errno (ENOSYS);  return -1;#endif}