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From: Tobias Bussmann <[email protected]>
To: Tom Lane <[email protected]>
Cc: John Naylor <[email protected]>
Cc: Lukas Fittl <[email protected]>
Cc: Jakob Egger <[email protected]>
Cc: pgsql-hackers <[email protected]>
Cc: Andres Freund <[email protected]>
Cc: Sandeep Thakkar <[email protected]>
Subject: Re: Broken build on macOS (Universal / Intel): cpuid instruction not available
Date: Tue, 2 Jun 2026 17:10:49 +0200
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
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> Am 02.06.2026 um 16:48 schrieb Tom Lane <[email protected]>:
> 
> Tobias Bussmann <[email protected]> writes:
>> Indeed. The universal builds seem to disable optimisations that are supported 
>> natively.
> 
> Yes, we realized that upthread.  It's been like that since day 1,
> not something that's new in v19.

I wasn't intending to say that. I was rather wondering if it would be worth to test doing two independent builds and lipo all the binaries and libraries together manually to construct a proper optimised universal build.

> However, it definitely is a regression that the build fails
> altogether.  Too bad nobody tried the x86 -> ARM case earlier.

We already touched the issue briefly before but didn't nail it. I wish I'd have more resources to contribute.

Tobias




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