Hi,
Apple's ranlib doesn't like empty translation units[1], but
protocol_openssl.c doesn't define any symbols (unless you have an
ancient EOL'd openssl), so longfin and CI say:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib:
file: libpgcommon.a(protocol_openssl.o) has no symbols
I guess we still can't switch to (Apple) libtool. Maybe configure
should be doing a test and adding it to LIBOBJS or a similar variable
only if necessary, or something like that?
[1] https://www.postgresql.org/message-id/flat/28521.1426352337%40sss.pgh.pa.us
