Wanted: POSIX and ANSI C, details and libraries

[Lee McLoughlin]

I'm working on large program that I want to be as portable as
possible.  Although it is mainly aimed at Unix boxes I thought I'd
throw caution to the wind and write it using the emerging standards:
POSIX and ANSI C.

The first problem is how do I get ahold of the POSIX spec' in the UK?
Although I've heard a lot of discussion about POSIX and seen some
libraries that a POSIX compatiable (Doug Gwyn's directory scanning
code for example) I don't recall seeing the name of a book, or whatever,
detailing POSIX.

ANSI C is easier to get ahold of details.  I just bought the 2nd edition
of K&R.  It seems to be a good general guide, but stddef.h, errno.h and
locale.h don't seem to be documented anywhere.

I'd really like pointers to official publications detailing POSIX and ANSI C.
If anyone knows how to get them in the UK I'd be very grateful.

While I'm asking I'd like public or freely available implementation of
POSIX or ANSI C libraries so that I can port to a wider range of systems.
So far I've only Doug Gwyn's directory stuff and a couple of
programs for converting ANSI C to K&R C (ansi2kr an agcp).  Any other
contributions would be greatly appreciated.

	thanx in advance
		Lee
--
Lee McLoughlin			01 589 5111 X 5028
Department of Computing,Imperial College,180 Queens Gate,London SW7 2BZ, UK
Janet: lmjm at uk.ac.ic.doc	Uucp:  lmjm at icdoc.UUCP, ukc!icdoc!lmjm
DARPA: lmjm at doc.ic.ac.uk (or lmjm%uk.ac.ic.doc at nss.cs.ucl.ac.uk)