[osgeo4w-dev] GEOS 3.2.2 packaging

Howard Butler hobu.inc at gmail.com
Mon Dec 27 12:48:19 EST 2010

Shapely is C API only. 

On Dec 27, 2010, at 11:03 AM, Frank Warmerdam <warmerdam at pobox.com> wrote:

> On 10-12-27 11:19 AM, Frank Warmerdam wrote:
>> Folks,
>> I'm seeking to package GEOS 3.2.2 for OSGeo4W. Reviewing setup.ini I see
>> dependencies on GEOS by python-shapely, various versions of GDAL, various
>> versions of MapServer, qgis, and qgis-dev.
>> I believe GDAL only depends on the GEOS C API which is hopefully compatible
>> between versions. I think this is true of MapServer too, though I'm not so
>> sure. I believe QGIS depends on the C++ ABI and will need to be recompiled.
>> I'm not sure about python-shapely.
>> I'll try to prepare a geos 3.2.2 package others can use to build against and
>> I'll make at least some effort to confirm the above assumptions. But if
>> anyone knows more please feel free to let me know.
>> Jurgen, are you available to rebuild qgis and qgis-dev with a new GEOS as
>> part of making this ABI incompatible upgrade?
>> The upgrade is related to http://trac.osgeo.org/osgeo4w/ticket/175 so it might
>> be best to carry the conversation forward there.
> Folks,
> Well, after a bit more investigation it appears that QGIS does *not* depend
> on the GEOS C ABI (I checked a few qgis dll's with depends.exe to see what
> they use).  I have uploaded a GEOS 3.2.2 package to the test environment
> and very very briefly confirmed that mapserver, gdal and qgis seem to still
> be working.  I'd appreciate some testing from others if convenient.
> Best regards,
> -- 
> ---------------------------------------+--------------------------------------
> I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
> light and sound - activate the windows | http://pobox.com/~warmerdam
> and watch the world go round - Rush    | Geospatial Programmer for Rent
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