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help / color / mirror / Atom feedFrom: Peter Eisentraut <[email protected]>
To: Zhang Mingli <[email protected]>
To: PostgreSQL Hackers <[email protected]>
Subject: Re: [BUG?] macOS (Intel) build warnings: "ranlib: file … has no symbols" for aarch64 objects
Date: Wed, 4 Feb 2026 15:54:35 +0100
Message-ID: <[email protected]> (raw)
In-Reply-To: <229aaaf3-f529-44ed-8e50-00cb6909af21@Spark>
References: <b3e0930c-e86c-4a6e-8059-281424ca6d69@Spark>
<229aaaf3-f529-44ed-8e50-00cb6909af21@Spark>
On 29.01.26 07:35, Zhang Mingli wrote:
> I'm building the master branch (commit 740a1494f4bf) on macOS (Intel
> Core i7) and encountered the following warnings during the make process:
>
>
>
> /Applications/Xcode.app/Contents/Developer/Toolchains/
> XcodeDefault.xctoolchain/usr/bin/ranlib: file:
> libpgport.a(pg_popcount_aarch64.o) has no symbols
> /Applications/Xcode.app/Contents/Developer/Toolchains/
> XcodeDefault.xctoolchain/usr/bin/ranlib: file:
> libpgport_shlib.a(pg_popcount_aarch64_shlib.o) has no symbols
> /Applications/Xcode.app/Contents/Developer/Toolchains/
> XcodeDefault.xctoolchain/usr/bin/ranlib: file:
> libpgport_srv.a(pg_popcount_aarch64_srv.o) has no symbols
>
>
> The build completes successfully and the compiled binaries appear to
> function correctly.
> These warnings appear to be related to the recent AArch64 (pg_popcount)
> optimization commits (possibly 79e232ca013c and fbe327e5b465d). It seems
> that on my Intel-based macOS system, the build process is generating
> empty or placeholder object files for the AArch64-specific implementations.
> While there is no functional impact in my environment, I'm reporting
> this to ensure it's noted, as other macOS/Intel users might encounter
> the same warnings during their build.
Probably not worth fixing, since this is an obsolescent platform.
The opposite situation also exists: On macOS ARM, an empty
pg_popcount_x86.c gets built, but apparently that linker doesn't warn
about that.
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Subject: Re: [BUG?] macOS (Intel) build warnings: "ranlib: file … has no symbols" for aarch64 objects
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