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Suppress "has no symbols" linker warnings on macOS.

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After a recent macOS update, building Postgres produces warnings
that look like this:

    ranlib: warning: 'libpgport_shlib.a(pg_cpu_x86.c.o)' has no symbols
    ranlib: warning: 'libpgport_shlib.a(pg_popcount_x86.c.o)' has no symbols

To fix, add a dummy symbol to files that may otherwise have none.
Per project policy, this is a candidate for back-patching into
out-of-support branches: it suppresses annoying compiler warnings
but changes no behavior.

Reported-by: Zhang Mingli <zmlpostgres@gmail.com>
Reviewed-by: John Naylor <johncnaylorls@gmail.com>
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/229aaaf3-f529-44ed-8e50-00cb6909af21%40Spark
Backpatch-through: 13
This commit is contained in:
Nathan Bossart
2026-04-29 12:25:09 -05:00
parent 89df812eb8
commit 05f6c9ec2c
1 changed files with 7 additions and 1 deletions
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8
src/common/protocol_openssl.c
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@@ -114,4 +114,10 @@ SSL_CTX_set_max_proto_version(SSL_CTX *ctx, int version)
return 1; /* success */ return 1; /* success */
} }
#endif /* !SSL_CTX_set_min_proto_version */ #else /* !SSL_CTX_set_min_proto_version */
/* prevent linker complaints about empty module */
extern int protocol_openssl_dummy_variable;
int protocol_openssl_dummy_variable = 0;
#endif /* SSL_CTX_set_min_proto_version */