Re: [PORTS] Failed install - libgen.so doesn't exist

Is there an easy way to tell what symbols are being used by Postgres?

For example, I was looking into libPW, and I want to see which symbols
might be used, but I don't see any being pulled into postgres binary or
the other commands.

BTW, from what I am reading is not thread-safe, so I wonder if we should
be including it even when we find it.  Or what possible calls we might
be using from it.

	-rocco


> -----Original Message-----
> From: [email protected] 
> [mailto:[email protected]] On Behalf Of Tom Lane
> Sent: Wednesday, February 01, 2006 12:11 PM
> To: Bruce Momjian
> Cc: Larry Rosenman; [email protected]; [email protected]
> Subject: Re: [PORTS] Failed install - libgen.so doesn't exist 
> 
> 
> Bruce Momjian <[email protected]> writes:
> > Larry Rosenman wrote:
> >> the issue is whether they actually export symbols that are NEEDED.
> 
> > Yea, ouch.  This is going to be a pain.
> 
> What I had in mind was to run "nm --ext --def" or local equivalent
> on each library, and then pick out a few symbols that look plausible
> to test for (or just send 'em all to the list if you are lazy).  We
> want to pick a symbol for each library that (a) is actually referenced
> by Postgres and (b) exists in that library on all our platforms that
> need that library.
> 
> 			regards, tom lane
> 
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TIP 9: In versions below 8.0, the planner will ignore your desire to
       choose an index scan if your joining column's datatypes do not
       match