View the most recent changes for the geos port at: geos.darwinports.com/diff
Scroll down toward the bottom of the page to get installation instructions for geos.
The raw portfile for geos 3.1.1 is located here:
http://geos.darwinports.com/dports/science/geos/Portfile
Find related portfiles with the unique DarwinPorts.com search feature.
Check for any related Fink projects here: pdb.finkproject.org/pdb/package.php/geos

The geos Portfile 58199 2009-09-24 00:55:25Z jann macports.org $

PortSystem 1.0

Name: geos
Version: 3.1.1
Category: science
Platform: darwin
Maintainers: gaige.net:opendarwin

Description: GEOS Geometry Engine - Open Source
Long Description: A C++ port of the Java Topology Suite, providing OpenGIS Simple Features for SQL spatial predicate functions and spatial operators, as well as specific JTS topology functions. Used by PostGIS.

Homepage: http://trac.osgeo.org/geos/
Master Sites: http://download.osgeo.org/geos/
use_bzip2 yes

Checksums: md5 196f4424aa4ef94476e6886d3a964fb6 sha1 cafb76a3e5fbcd7d9588d3fdcec8fa4fcd8b9fa4 rmd160 a3254a7a8cdfccaefaa2f438577f4ebd0c8929ac

test.run yes
test.cmd make
test.target check

use_parallel_build yes

livecheck.type regex
livecheck.url ${homepage}
livecheck.regex {geos-(\d+(?:\.\d+)*).tar.bz2}

If you haven't already installed Darwin Ports, you can find easy instructions for doing so at the main Darwin Ports page.
Once Darwin Ports has been installed, in a terminal window and while online, type the following and hit return:

%  cd /opt/local/bin/portslocation/dports/geos
%  sudo port install geos  
Password: 

You will then be prompted for your root password, which you should enter. You may have to wait for a few minutes while the software is retrieved from the network and installed for you. Y ou should see something that looks similar to:

--->  Fetching geos
--->  Verifying checksum for geos
--->  Extracting geos
--->  Configuring geos
--->  Building geos with target all

--->  Staging geos into destroot

--->  Installing geos

- Make sure that you do not close the terminal window while Darwin Ports is working. Once the software has been installed, you can find further information about using geos with these commands:

%  man geos
%  apropos geos
%  which geos
%  locate geos

 Where to find more information: