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From: Tom Lane <[email protected]>
To: Nathan Bossart <[email protected]>
Cc: Peter Eisentraut <[email protected]>
Cc: Zhang Mingli <[email protected]>
Cc: PostgreSQL Hackers <[email protected]>
Subject: Re: [BUG?] macOS (Intel) build warnings: "ranlib: file … has no symbols" for aarch64 objects
Date: Wed, 04 Feb 2026 13:27:43 -0500
Message-ID: <[email protected]> (raw)
In-Reply-To: <aYN5vmHb89m3sfgs@nathan>
References: <b3e0930c-e86c-4a6e-8059-281424ca6d69@Spark>
	<229aaaf3-f529-44ed-8e50-00cb6909af21@Spark>
	<[email protected]>
	<[email protected]>
	<aYN5vmHb89m3sfgs@nathan>

Nathan Bossart <[email protected]> writes:
> Hm.  The options I see for fixing this seem to be:

> * Pass -no_warning_for_no_symbols flag on this platform, but that option
> might not be available in older toolchains.

> * Add a random symbol to this file.  That seems like a hack.

> * Add build logic to only compile this file when necessary.  I've been
> trying to get rid of complexity here, so this feels like a step backwards.

> IMHO none of these options seem worth the effort to fix a warning on an
> obsolescent platform, so my vote is to do nothing for now.

The idea I'd had was to simply merge pg_popcount_aarch64.c
and pg_popcount_x86.c into one file.  Since each one is basically
one giant #ifdef block conditioned on a different symbol, they'd not
interfere.  But I wouldn't propose this unless it made sense from
a code-structure viewpoint, and I'm not sure it does.  It could
make sense if there was some code that could be shared, but I'm
not seeing much.

			regards, tom lane

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