RE: AIX support

From: Srirama Kucherlapati <sriram(dot)rk(at)in(dot)ibm(dot)com>
To: Peter Eisentraut <peter(at)eisentraut(dot)org>, Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>, Noah Misch <noah(at)leadboat(dot)com>, Heikki Linnakangas <hlinnaka(at)iki(dot)fi>
Cc: Bruce Momjian <bruce(at)momjian(dot)us>, Michael Paquier <michael(at)paquier(dot)xyz>, Andres Freund <andres(at)anarazel(dot)de>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Thomas Munro <thomas(dot)munro(at)gmail(dot)com>, "tvk1271(at)gmail(dot)com" <tvk1271(at)gmail(dot)com>, postgres-ibm-aix <postgres-ibm-aix-dg(at)ibm(dot)com>, Sriram RK <sriram(dot)rk(at)outlook(dot)com>
Subject: RE: AIX support
Date: 2024-05-23 15:36:24
Message-ID: DS0PR15MB5623A624B285AF799705C50ADBF42@DS0PR15MB5623.namprd15.prod.outlook.com
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Hi Peter, thanks for your feedback.

We are eager to extend our support in resolving the issues specific to AIX or corresponding
compilers (XLC and cLang).

But as there are no issues with the patch after reverting the changes(with the latest compilers
gcc12 and xlc-16.0.1.18), we were wondering if this patch can be merged with the current release 17??

Having said that, we are committed to resolve all the hacks and caveats that got
accumulated specific to AIX over the period by picking and resolving one after the other,
rather than waiting for all the hacks to be fixed.

> One of the reasons that the AIX port ultimately became unmaintainable
> was that so many hacks and caveats were accumulated over the years. A
> new port should set a more recent baseline and trim all those hacks.
Please help me understand this, with respect to the AIX specific hacks, is it just we can find
all the location where _AIX macros are involved OR can we just look at the patch changes only, as all
the changes that were made were specific to AIX. If not, is there any other location where
we could find all the hacks to be resolved.
Can you provide some more details on the expectations here?

Warm regards,
Sriram.

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