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help / color / mirror / Atom feedFrom: Nathan Bossart <[email protected]>
To: Tom Lane <[email protected]>
Cc: John Naylor <[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: Tue, 28 Apr 2026 15:32:28 -0500
Message-ID: <afEZXCDzmlr3TnSg@nathan> (raw)
In-Reply-To: <afC_haf7bXWHb6e9@nathan>
References: <aYN5vmHb89m3sfgs@nathan>
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<afC_haf7bXWHb6e9@nathan>
On Tue, Apr 28, 2026 at 09:09:09AM -0500, Nathan Bossart wrote:
> On Tue, Apr 28, 2026 at 09:29:41AM -0400, Tom Lane wrote:
>> If we do care, a low-tech solution could be to have a dummy symbol
>> declared in each file, along the lines of
>>
>> #if HAVE_X86_64_POPCNTQ
>> // code for popcntq case
>> #elif HAVE_FROBNITZ
>> // code for frobnitz case
>> ...
>> #else
>> /* prevent linker complaints about empty module */
>> extern int pg_cpu_x86_dummy_variable;
>> int pg_cpu_x86_dummy_variable = 0;
>> #endif
>>
>> Actually then we'd not need to change the build systems either...
>
> I've been trying to avoid doing that, but it's a far simpler solution, and
> in theory it should fix the problem for all platforms, too. So, it's
> probably the way to go.
Here's a full set of patches for back-patching purposes.
protocol_openssl.c has a similar problem on older versions. I suppose this
is the sort of thing I could back-patch all the way to v9.2. Does anyone
feel strongly one way or the other about that?
--
nathan
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To: [email protected]
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Subject: Re: [BUG?] macOS (Intel) build warnings: "ranlib: file … has no symbols" for aarch64 objects
In-Reply-To: <afEZXCDzmlr3TnSg@nathan>
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