Re: GCC 3.4 fixes and small io_seek fix

[Roland McGrath]

> +                     (void)0; /* Silence GCC error.  */

Just use "break;" here (or ";" if not in a loop/switch), and no comment.

> -             /* CHECKSUM_UNNECESSARY */
> +             break; /* CHECKSUM_UNNECESSARY */

Just insert the new line, don't modify the old line.

> +  if (pos < 0)
> +    err = EINVAL;
> +  
>    if (! err)
> -    *new_offs = op->offs;
> +    *new_offs = op->offs = pos;

Use else.