[geos-devel] Re: [postgis-users] Error compiling PostGIS + GEOS

[Chip Masters]

--- Mark Cave-Ayland <m.cave-ayland at webbased.co.uk>
wrote:

>  
> 
> > -----Original Message-----
> > From:
> postgis-users-bounces at postgis.refractions.net 
> >
>
[mailto:postgis-users-bounces at postgis.refractions.net]
> On 
> > Behalf Of strk at refractions.net
> > Sent: 21 June 2005 10:19
> > To: 'PostGIS Users Discussion'; 'GEOS Development
> List'
> > Subject: Re: [geos-devel] Re: [postgis-users]
> Error compiling 
> > PostGIS + GEOS
> > 
> > 
> > On Tue, Jun 21, 2005 at 09:41:36AM +0100, Mark
> Cave-Ayland wrote: ...
> > > Could you write a script using 'nm' that would
> find the 
> > symbol, e.g. 
> > > the following works but is not recursive (you
> could probably solve 
> > > this with some bash scripting):
> > > 
> > > nm --dynamic /usr/lib/* | grep '__builtin_new'
> > 
> > # find <root> -type f -name '*so' | xargs nm 
> > --print-file-name --dynamic 2> /dev/null | grep
> __builtin_new
> > 
> > I find many 'U'ndefined, few 'T'ext
> (libflashplayer) and 
> > 'W'eak symbols, one of which in libstdc++
> > 
> > /usr/lib/libstdc++-3-libc6.1-2-2.10.0.so:000264b0
> W __builtin_new
> > 
> > No symbols in my GCC 3.4.3 root!
> > 
> > --strk;
> 
> 
> Hmmm, me neither :(
> 
> It seems to suggest a broken compiler or
> installation - perhaps one of the
> libraries upon which PostGIS depends has been
> installed from a binary
> RPM/package compiled from a different version of gcc
> which shows up this
> particular bug? It may be worth checking if Chip has
> manually compiled and
> installed all the relevant libraries on the same
> machine.
> 
> 
> Kind regards,
> 
> Mark.
> 
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> 

Hi Mark,

I asked our system administrator to look into the
library configuration on cyc11, where we are trying to
install postgis, and here's his response:

> Yes, pretty much all of the libraries were installed
> from RedHat 7.1 rpms. The only thing we built by
hand 
> was gcc 3.4.3.  Running their script yields the 
> following results (with all of the mozilla/plugin 
> libraries snipped)
>
> /usr/lib/libstdc++-2-libc6.1-1-2.9.0.so:000311c0 W 
> __builtin_new
> /usr/lib/libdb_cxx-3.1.so:000777b4 W __builtin_new
> /usr/lib/libstdc++-3-libc6.2-2-2.10.0.so:000271d4 W 
> __builtin_new

We have the option of upgrading our OS to SuSE 9.2,
which we would be required to do if fixing this
problem involves recompiling the standard C/C++
libraries. Do you have any reason to believe that
later versions of the shared libraries might not
exhibit this problem?

Thanks again for everyone's help.

Chip




		
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