Generate string.h and time.h if nonexistent; kill POSIX

[Russ Allbery]

Zack Weinberg <zackw@Stanford.EDU> writes:

> Unless Stanford's got a cluster of old machines that I don't know about,
> I have no access to any machine with a pre-C89 library.  Maybe John
> Anglin can shed some light?

We have one SunOS box that I know of, but I don't think I even have an
account and we're hoping to be able to finally turn it off very soon.  All
of the NeXT cubes are gone (although I'm not sure they're as much pre-C89
as just strange), and we shipped the last ULTRIX box off to salvage about
two years ago.

It's *really* hard to find pre-C89 systems any more unless one
intentionally keeps one around for testing purposes or is a hobbiest
porting things to old systems for fun.

-- 
Russ Allbery (rra@stanford.edu)             < http://www.eyrie.org/~eagle/ >