[postgis-users] lwpostgis.sql and liblwgeom.so

[ROBERT HOLLINGSWORTH]

I'm new to building postgresql and postgis, and have run into a problem that, from googles on the subject, may be the same or similar to what other people have run into when installing lwpostgis.sql:

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psql:/usr/local/pgsql/share/lwpostgis2.sql:44: NOTICE:  type "histogram2d" is not yet defined
DETAIL:  Creating a shell type definition.
psql:/usr/local/pgsql/share/lwpostgis2.sql:44: 

ERROR:  could not load library
 "/usr/local/pgsql/lib/liblwgeom.so"

: /usr/local/pgsql/lib/liblwgeom.so: undefined
symbol: GEOSTopologyPreserveSimplify

psql:/usr/local/pgsql/share/lwpostgis2.sql:50: ERROR:  current transaction is ab
orted, commands ignored until end of transaction block 
...
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this is being done on a fedora system, I built postgresql and proj and geos and postgis from source. and ran the createlang plpgsql successfully

the other references to this problem suggest running ldconfig to repair the problem.  I added /usr/local/pgsql/lib to the /etc/ld.so.conf  and ran ldconfig; it's output shows 
liblwgeom.so.1 -> liblwgeom.so.1.3
(while my error from lwpostgis.sql complains can't open liblwgeom.so.  liblwgeom.so is also a symbolic link to the .1.3)

Is this really a problem linking with geos?  ran ldd on liblwgeom.so:
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 ldconfig -v | grep geos
        libgeos_c.so.1 -> libgeos_c.so.1.1.1
        libgeos.so.2 -> libgeos.so.2.2.3

 ldd /usr/local/pgsql/lib/liblwgeom.so
        libgeos_c.so.1 => /usr/lib/libgeos_c.so.1 (0x00172000)
        libproj.so.0 => /usr/lib/libproj.so.0 (0x0017f000)
        libgeos.so.2 => /usr/lib/libgeos.so.2 (0x0030f000)
        libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x00414000)
       
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anyway, I'm at a loss and any help would be appreciated.

thanks,
Robert H.
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