Re: poll: enable argument check

[Paul Eggert]

Bruno Haible wrote:
> TYPE_MAXIMUM (nfds_t) / 2 is good for a quick check against an out-of-bounds 
> nfd.
> POSIX [1] says that nfd is out-of-bounds if it is > getdtablesize().

OK, but getdtablesize returns 'int' so the 'poll' code should compare to INT_MAX 
rather than to an expression that would not be appropriate on (admittedly weird) 
platforms where nfds_t differs in width from 'int'. Also, that comment is still 
confusing. How about the attached?

0001-poll-improve-fast-check-for-out-of-range-NFD.patch
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