AW: AW: User functions and AIX

From: Zeugswetter Andreas SB <ZeugswetterA(at)wien(dot)spardat(dot)at>
To: "'darcy(at)druid(dot)net'" <darcy(at)druid(dot)net>, "'pgsql-hackers(at)postgresql(dot)org'" <pgsql-hackers(at)postgresql(dot)org>
Subject: AW: AW: User functions and AIX
Date: 2001-05-29 12:57:43
Message-ID: 11C1E6749A55D411A9670001FA6879633682FA@sdexcsrv1.f000.d0188.sd.spardat.at
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> > > IBM is trying to find the answer to this but I thought I would throw ...
>
> > Tell me your link line, OS and compiler version.
> > And have you forgotten to include -bI:postgres.imp ?
>
> Bingo! I can't believe that IBM has been wrestling with this for a week.
> Part of the reason we are thinking of going with IBM is for the support.

Shared libs are obviously not their strong side :-)
Basically we are very happy with their RS6000's and AIX though.

> Here is my Makefile now. I'm not sure about that -lc there
> as I get duplicate symbol warnings but it appears to work fine.

they don't matter

> CFLAGS = -g -O0 -pipe -ansi -Wall -Wshadow -Wpointer-arith

gcc and not xlc :-) actually xlc produces faster code, but I don't think that makes a
noticeable difference.

> .o.so:
> ld -G -o $@ $< -L ${PGLIBDIR} -bI:/usr/local/pgsql/lib/postgres.imp \
> -bexpall -bnoentry -lc

Always use the compiler for linking instead of ld:
gcc -Wl,-H512 -Wl,-bM:SRE -o $@ $< -L ${PGLIBDIR} -bI:/usr/local/pgsql/lib/postgres.imp \
-bexpall -bnoentry

You are not allowed to leave anything unresolved, thus do not use -G, or you won't notice
unresolved externals (-G includes -berok which you don't want at all).

Andreas

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