[postgis-users] when setting up postgis libs, "could not find function "topologypreservesimplify"" in "...liblwgeom.so"

[Michael Billmire]

Thanks for the response, Paul. Yes, I had remembered to do 'make install'.

I did find a workable solution, though, so I wanted to post it for the sake of future users who may have similar problems. Basically, I just went into the 'lwpostgis.sql' file and commented out the lines that called the 'topologypreservesimplify' function and everything then compiled nicely.  Hopefully that function isn't integral to PostGIS functionality! The comments at that line specify that GEOS > 3.0.0 is needed for this function, but I have 3.0.3, so I'm still unsure why the error was occurring in the first place.

Anyways, all is well for now.  

-Mike

----- Original Message -----
From: "Paul Ramsey" <pramsey at opengeo.org>
To: "PostGIS Users Discussion" <postgis-users at postgis.refractions.net>
Sent: Thursday, March 19, 2009 3:47:27 PM GMT -05:00 US/Canada Eastern
Subject: Re: [postgis-users] when setting up postgis libs, "could not find  function "topologypreservesimplify"" in "...liblwgeom.so"

Did you remember to 'make install'? The SQL file is referencing a C
function that doesn't exist in your postgis .so file. So somewhere you
have a mis-match between versions. Ensuring that all old things are
*removed* and all new things *installed* might do the trick.

Paul

On Thu, Mar 19, 2009 at 11:49 AM, Michael Billmire <mgbillmi at mtu.edu> wrote:
> Hi all,
>
> I'm currently slogging my way through installation/set-up of PostGIS 1.3.5 (w/ postgresql 8.3). I finally got it installed, but when I set up a test db and tried to import postgis libs with this command:
>
> sudo -u postgres psql -d postgis-template -f /usr/share/postgresql/8.3/lwpostgis.sql
>
> , things went smoothly until this happened:
>
>
> psql:/usr/share/postgresql/8.3/lwpostgis.sql:3867: ERROR:  could not find function "topologypreservesimplify" in file "/usr/local/postgis/1.3.5/lib/liblwgeom.so"
>
> I also have GEOS 3.0.3 and proj 4.6.1 installed.
>
> Any ideas why this function seems to be missing/what to do about it?
>
> Thanks,
> Mike
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