[postgis-users] How can I update proj4 without recompile

[Guido Stein]

Thanks for the input.

I really appreciate it.

-guido

On Tue, Nov 28, 2017 at 5:10 PM Paul Ramsey <pramsey at cleverelephant.ca>
wrote:

> Hi Guido,
> Knowing your use case ("wanting to avoid bad area calculations in
> geodetics"), I can say definitively that you're out of luck. Just
> replacing the library file won't do the trick, as the code in PostGIS
> that uses the new proj geodetic area calculations won't be activated
> with anything less than a rebuild.
> ATB,
> P
>
> On Tue, Nov 28, 2017 at 9:59 AM, Guido Stein <gstein at appgeo.com> wrote:
> > Hey folks,
> >
> > I am trying to update the proj4 libraries on my postgis because I think
> the
> > older version of proj4 is giving me faulty areas (known bug). I would
> like
> > to go from 4.8 to 4.9.
> >
> > In talking to some friends I found out that I can make a sym link from
> the
> > existing proj4 to a newly compiled proj4 without an issue. But, I can't
> seem
> > to figure that out completely and need a little help.
> >
> > # Here is what is running on my system:
> >
> > select version();
> >     PostgreSQL 9.5.10 on x86_64-pc-linux-gnu, compiled by gcc (Ubuntu
> > 4.8.4-2ubuntu1~14.04.3) 4.8.4, 64-bit
> >
> > select postgis_full_version();
> >     POSTGIS="2.3.3 r15473"
> >     GEOS="3.4.2-CAPI-1.8.2 r3921"
> >     PROJ="Rel. 4.8.0, 6 March 2012"
> >     GDAL="GDAL 1.10.1, released 2013/08/26"
> >     LIBXML="2.9.1"
> >     LIBJSON="0.11.99"
> >     RASTER
> >
> > # here is what I have done so far:
> >
> > - locate the directory of the postgis
> >     pg_congif --pkglibdir
> > - get information about what libraries are associated with postgis
> >     ldd postgis-2.3
> >         libproj.so.0 => /usr/lib/libproj.so.0 (0x00007ff19e1dd000)
> >
> > # this is where I loose the thread
> >
> > I don't know if when I make install if there should be a file I need to
> link
> > here?? Yeah I need a clue and would be grateful for any assistance on
> this.
> >
> > -guido
> >
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