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

[strk at refractions.net]

I recall something like GCC-3.4 having an ABI compatibility problem for C++
code compiled with previous versions.
Can you try recompiling GEOS with the new compiler ?

--strk;

On Tue, Jun 21, 2005 at 09:28:01AM -0700, Chip Masters wrote:
> --- 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.
> > 
> > ------------------------
> > WebBased Ltd
> > 17 Research Way
> > Tamar Science Park
> > Plymouth
> > PL6 8BT 
> > 
> > T: +44 (0)1752 797131
> > F: +44 (0)1752 791023
> > W: http://www.webbased.co.uk
> > 
> 
> 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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