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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Thomas Munro <thomas.munro@gmail.com>
cc: Heikki Linnakangas <hlinnaka@iki.fi>,
        =?UTF-8?Q?Bastien_Roucari=C3=A8s?= <rouca@debian.org>,
        pgsql-bugs@lists.postgresql.org
Subject: Re: Detection of hadware feature => please do not use signal
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Comments: In-reply-to Tom Lane <tgl@sss.pgh.pa.us>
	message dated "Mon, 25 Nov 2024 10:41:37 -0500"
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I wrote:
> Also, there's no +fp option for "-march=armv8-a" because the
> ARMv8 specs require chips to implement both or neither of FP
> and SIMD.  So the idiomatic thing for us to write is not a
> separate -mfpu spec but "-march=armv8-a+crc+simd".  I'll
> adjust my patch to do it like that and push later today.

And done.  In the event I decided to try the +simd option first,
reasoning that that's correct on the majority of current ARM systems.
I'm interested to see what the older buildfarm ARM animals pick.

			regards, tom lane