size of size_t

[leo_tck]

Hi,

I just discovered, to my dismay, that size_t is only 32 bits, even on
64-bit processors. Is there a particular pressing reason for this? A
quick investigation reveals that even dd(1) is affected -- this is IMO
not good.

I'd suggest, given modern file sizes, that we bump it to 64 bits on all
platforms. Comments?

        --schaafuit.