Horton

Re: Broken build on macOS (Universal / Intel): cpuid instruction not available

John Naylor <johncnaylorls@gmail.com>

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From: John Naylor <johncnaylorls@gmail.com>
To: Jakob Egger <jakob@eggerapps.at>
Cc: pgsql-hackers <pgsql-hackers@postgresql.org>, john.naylor@postgresql.org, Tobias Bussmann <t.bussmann@gmx.net>
Date: 2026-05-07T12:42:37Z
Lists: pgsql-hackers

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Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. Fix universal builds on MacOS

  2. Centralize detection of x86 CPU features

On Thu, May 7, 2026 at 6:41 PM Jakob Egger <jakob@eggerapps.at> wrote:

> Universal builds
> ============

> This results in an error "cpuid instruction not available"

Hmm, I imagine that may not work on normal Intel builds either, but
maybe it didn't get that far.

> Intel Builds
> ========
>
> Intel-only builds (using Rosetta) are also broken in master since the following commit:
> 5e13b0f: Use AVX2 for calculating page checksums where available

> This results in an error:
> checksum.c:57:6: error: call to undeclared function 'x86_feature_available'

That's strange. I have an Intel MacBook laying around -- I'll see what I can do.

--
John Naylor
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