Horton

Re: meson PGXS compatibility

John Naylor <john.naylor@enterprisedb.com>

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From: John Naylor <john.naylor@enterprisedb.com>
To: Peter Eisentraut <peter.eisentraut@enterprisedb.com>
Cc: Andres Freund <andres@anarazel.de>, pgsql-hackers@postgresql.org, Nazir Bilal Yavuz <byavuz81@gmail.com>, Tom Lane <tgl@sss.pgh.pa.us>
Date: 2022-10-12T06:53:05Z
Lists: pgsql-hackers 
On Wed, Oct 12, 2022 at 12:50 PM Peter Eisentraut <
peter.eisentraut@enterprisedb.com> wrote:
>
> On 05.10.22 22:07, Andres Freund wrote:
> > 0001: autoconf: Unify CFLAGS_SSE42 and CFLAGS_ARMV8_CRC32C
>
> I wonder, there has been some work lately to use SIMD and such in other
> places.  Would that affect what kinds of extra CPU-specific compiler
> flags and combinations we might need?

In short, no. The functionality added during this cycle only uses
instructions available by default on the platform. CRC on Arm depends on
armv8-a+crc, and CRC on x86-64 depends on SSE4.2. We can't assume those
currently.

--
John Naylor
EDB: http://www.enterprisedb.com

Commits

  1. meson: Add basic PGXS compatibility

  2. autoconf: Move export_dynamic determination to configure

  3. autoconf: Don't AC_SUBST() LD in configure

  4. autoconf: Unify CFLAGS_SSE42 and CFLAGS_ARMV8_CRC32C

  5. autoconf: Rely on ar supporting index creation