> What you do need to do to reproduce the described problems is > check out the Postgres git tree and rewind to just before > commit 0b16bb877, where we deleted AIX support. Any attempt > to restore AIX support would have to start with reverting that > commit (and perhaps the followup f0827b443).
> regards, tom lane Hi Team, thank you for all the info. We progressed to build the source on our nodes and the build was successful with the below configuration. Postgres - github-bcdfa5f2e2f AIX - 71c Xlc - 13.1.0 Bison - 3.0.5 Going ahead, we want to build the changes that were removed as part of “0b16bb8776bb8”, with latest Xlc and gcc version. We were building the source from the postgres ftp server(https://ftp.postgresql.org/pub/source/), would like to understand if there are any source level changes between the ftp server and the source on github? Regards, Sriram. From: Tom Lane <t...@sss.pgh.pa.us> Date: Friday, 29 March 2024 at 9:03 AM To: Thomas Munro <thomas.mu...@gmail.com> Cc: Noah Misch <n...@leadboat.com>, Sriram RK <sriram...@outlook.com>, Alvaro Herrera <alvhe...@alvh.no-ip.org>, pgsql-hack...@postgresql.org <pgsql-hack...@postgresql.org> Subject: Re: AIX support Thomas Munro <thomas.mu...@gmail.com> writes: > Oh, sorry, I had missed the part where newer compilers fix the issue > too. Old out-of-support versions of AIX running old compilers, what > fun. Indeed. One of the topics that needs investigation if you want to pursue this is which AIX system and compiler versions still deserve support, and which of the AIX hacks we had been carrying still need to be there based on that analysis. For context, we've been pruning support for extinct-in-the-wild OS versions pretty aggressively over the past couple of years, and I'd expect to apply the same standard to AIX. regards, tom lane