Re: ranlib bleating about dirmod.o being empty

From: Peter Eisentraut <peter_e(at)gmx(dot)net>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-hackers(at)postgreSQL(dot)org
Subject: Re: ranlib bleating about dirmod.o being empty
Date: 2015-03-17 01:09:19
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On 3/14/15 12:58 PM, Tom Lane wrote:
> I'm getting rather tired of reading these warning messages in OS X builds:
> /Applications/ file: libpgport.a(dirmod.o) has no symbols
> /Applications/ file: libpgport_srv.a(dirmod_srv.o) has no symbols
> The reason for this warning is that dirmod.o contains no functions that
> aren't Windows-specific. As such, it seems like putting it into the
> list of "always compiled" port modules is really a mistake. Any
> objections to switching it to be built only on Windows?

It looks like ar isn't even the preferred method to build static
libraries on OS X anymore. Instead, one should use libtool (not GNU
libtool), which has a -no_warning_for_no_symbols option.

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