Date: Thu, 29 Jan 2026 14:35:34 +0800
From: Zhang Mingli <zmlpostgres@gmail.com>
To: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Message-ID: <229aaaf3-f529-44ed-8e50-00cb6909af21@Spark>
In-Reply-To: <b3e0930c-e86c-4a6e-8059-281424ca6d69@Spark>
References: <b3e0930c-e86c-4a6e-8059-281424ca6d69@Spark>
Subject: [BUG?] macOS (Intel) build warnings: "ranlib: file
 =?utf-8?Q?=E2=80=A6_?=has no symbols" for aarch64 objects
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Hi,


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.

--
Zhang Mingli
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<div name=3D=22messageBodySection=22>
<div dir=3D=22auto=22>Hi,<br />
<br />
<br />
I'm building the master branch (commit 740a1494f4bf) on macOS (Intel Core=
 i7) and encountered the following warnings during the make process:<br /=
>
<br />
<br />
<br />
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctool=
chain/usr/bin/ranlib: file: libpgport.a(pg=5Fpopcount=5Faarch64.o) has no=
 symbols<br />
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctool=
chain/usr/bin/ranlib: file: libpgport=5Fshlib.a(pg=5Fpopcount=5Faarch64=5F=
shlib.o) has no symbols<br />
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctool=
chain/usr/bin/ranlib: file: libpgport=5Fsrv.a(pg=5Fpopcount=5Faarch64=5Fs=
rv.o) has no symbols<br />
<br />
<br />
The build completes successfully and the compiled binaries appear to func=
tion correctly.<br />
These warnings appear to be related to the recent AArch64 (pg=5Fpopcount)=
 optimization commits (possibly 79e232ca013c and fbe327e5b465d). It seems=
 that on my Intel-based macOS system, the build process is generating emp=
ty or placeholder object files for the AArch64-specific implementations.<=
br />
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 sam=
e warnings during their build.<br />
<br />
--<br />
Zhang Mingli<br />
HashData</div>
</div>
</body>
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