Path: utzoo!attcan!uunet!snorkelwacker!paperboy!osf.org!mbrown
From: mbrown@osf.org (Mark Brown)
Newsgroups: comp.unix.aix
Subject: Re: Basic Question
Message-ID: <5613@paperboy.OSF.ORG>
Date: 28 Mar 90 18:13:08 GMT
References: <1160@ra.cs.Virginia.EDU> <1990Mar28.062220.19948@edm.uucp> <5590@paperboy.OSF.ORG>
Sender: news@OSF.ORG
Reply-To: mbrown@osf.org (Mark Brown)
Organization: Open Software Foundation
Lines: 28

In article <1160@ra.cs.Virginia.EDU>, gnf3e@uvacs.cs.Virginia.EDU (Greg
Fife) writes:
> Is AIX POSIX-compliant?  Is the AIX compiler ANSI standard?  If
> so, for which versions?  If not, when?
> 

Simple Answer: Yes.

Complex Answer:

AIXv3 will, as (the currently planned, I've been away for three months)
default, provide an SysV.2/BSD4.3 namespace in its libc and include files.

  By use of Feature Test Macros (compiler flags, -D) one can restrict the
namespace to XPG3, POSIX, or ANSI levels (progressively more restrictive).

The compiler will as (currently planned) default accept BOTH 'Classic' and
'ANSI' constructs, working in a 'Classic' manner. A flag will convert it
to ANSI C mode. This flag is SEPARATE from the namespace flags listed
above.

AIXv1, AIXv2, and the PS/2 version of AIXv2: No, sorry, they came out before 
the standards did.

Mark Brown   IBM AWD / OSF  | The effort of using machines to mimic the
The Good     mbrown@osf.org | human mind has always struck me as rather silly.
The Bad     uunet!osf!mbrown| I would rather use them to mimic something
The Ugly     (617) 621-8981 | better.       --Edsger Dijkstra