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 Thomas Munro <thomas.munro@gmail.com>
	message dated "Mon, 25 Nov 2024 13:47:06 +1300"
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Thomas Munro <thomas.munro@gmail.com> writes:
> It does work on the "armv7" target BF animals, though.  I assume they
> don't get any updates as they're all old/defunct distros (one of my
> favourite features of our boneyard^Wbuildfarm), but one of them is GCC
> "10.2.1 20210110", which is what made me suspicious of that -mfpu
> stuff, beyond my comprehension without a lot more coffee, that got
> backpatched in late 2021.

Ah, you're looking at mereswine, which is hard-float according to

checking build system type... armv7l-unknown-linux-gnueabihf
checking host system type... armv7l-unknown-linux-gnueabihf

I also confirmed that our existing code works on Fedora 30 armv7l
(also hard-float) with gcc 9.3.1.  That's the only other ARM32
image I have at hand :-(

So yeah, it would seem they broke it between 10.2.1 and 10.5.0.

			regards, tom lane