[MiNT] poll & mintlib

[Alan Hourihane <alanh@fairlite.co.uk>]

Hi all,

Just bumped into a nasty bug in the mintlib.

It turns out the new poll implementation in the kernel has exposed this bug.

In the mintlib we had been executing poll(), but even on success, the 
code would fall
through to the older select code which is restricted to 32 file 
descriptors. Some odd
behaviour could have occurred because of this.

So those folk who have been using a snapshot mintlib, should grab a 
fresh one tomorrow
and rebuild your applications to ensure correct operation.

Thanks,

Alan.