Preliminary Debian GNU/Interix support.

[Juli Mallett]

Hey folks,

I'm sure some of you have to support Windows environments so I wanted
to let you know that there is now preliminary support in trunk for
Debian GNU/Interix (on Interix 3.5; I think something newer should
work better and not need some of the hacks I've added, but 3.5 is what
I have) with bmake from NetBSD pkgsrc.  There's still a couple of bugs
to work out (presumably in my wrappers for getnameinfo(3) and
getaddrinfo(3)), but everything at least builds.

Juli.