Re: [BUG?] macOS (Intel) build warnings: "ranlib: file … has no symbols" for aarch64 objects

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.