[libgo] Account for 32-bit fds_bits on Solaris 2

[Ian Lance Taylor]

Richard Henderson <rth@redhat.com> writes:

> On 03/31/2011 09:03 AM, Ian Lance Taylor wrote:
>> What an annoying problem.  Sorry about that.  But why don't we just
>> change to byte?
>
> That would work for little-endian, but not big-endian, at least not
> without even worse ugliness in two different files.

Yeah, I figured that out.  Different systems use different sizes for the
bitfield.  Ugh.

Ian