Re: static libpq (and other libraries) overwritten on aix

Hi,

On 2022-08-20 10:42:13 -0700, Andres Freund wrote:
> On 2022-08-20 01:35:22 -0700, Andres Freund wrote:
> > I'll send in a patch series tomorrow, too tired for today.
>
> Here it goes.

> 0001 aix: Fix SHLIB_EXPORTS reference in VPATH builds
>
> That's mostly so I could even build. It's not quite right in the sense that
> we don't depend on the file, but that's a preexisting issue. Could be folded
> in with 0005, which fixes that aspect. Or it could be backpatched as the
> minimal fix.
>
>
> 0002 Remove SUBSYS.o rule in common.mk, hasn't been used in a long time
> 0003 Remove rule to generate postgres.o, not needed for 20+ years
>
> Both obvious, I think.

Pushed these, given that they're all pretty trivial.

> 0004 aix: when building with gcc, tell gcc we're building a shared library
>
> That's the gcc -shared issue I explained in the email I'm replying to.
>
> We should probably consider building executables with -shared-libgcc too,
> that shrinks them a decent amount (e.g. 1371684 -> 1126765 for psql). But
> I've not done that here.
>
>
> 0005 aix: No need to use mkldexport when we want to export all symbols
>
> This makes the building of shared libraries a lot more similar to other
> platforms. Export files are only used when an exports.txt is present and
> there's no more intermediary static libraries.
>
>
> 0006 configure: Expand -fvisibility checks to more compilers, add -qvisibility
>
> This isn't strictly speaking part of the same "thread" of work, but I don't
> want to touch aix more often than I have too... I'll post it in the other
> thread too.
>
> I did just test that this passes at least some tests on aix with xlc and
> solaris with sunpro.

Any comments here?

Greetings,

Andres Freund