[winGRASS] GDAL and cygwin - crossposting

Markus Neteler neteler at itc.it
Thu May 15 07:38:40 EDT 2003


For those being interested in GDAL on Cygwin (r.in.gdal),
may read following posting from the GDAL mailing list.

Markus

The thread:
 http://remotesensing.org/pipermail/gdal-dev/2003-May/000621.html
 Re: [Gdal-dev] python support under cygwin

On Wed, May 14, 2003 at 03:50:28PM -0400, Frank Warmerdam wrote:
[...]
> 
> I have spent a couple of hours fiddling with the GDAL built on Cygwin.  I
> found I had to upgrade to the latest Cygwin (1.3.22) to get good functioning
> out of the DLL building support in Cygwin.  I also had to hack around at
> the configure logic a bit for python support.  But now I am able to configure
> GDAL out of the box on Cygwin and get a Python shared library (libgdal.1.1.dll)
> and python support.
> 
> I would encourage you to try rebuilding tomorrow from the nightly snapshot,
> or pull the current version out of CVS.
> 
> Known and suspected issues:
> 
>   o I was using the internal versions of libtiff, libpng, libjpeg and so
>     forth because I avoided installing the cygwin versions at all.  I don't
>     know if the cygwin versions will work or not, but I see the cygwin folks
>     have updated to libtiff 3.6.0 already so it might.
> 
>   o I tried building and installing PROJ from CVS.  It works, but PROJ didn't
>     produce shared libraries, and so the aspects of GDAL that utilize PROJ
>     aren't going to work ... well, perhaps static PROJ linking could be
>     utilized but that isn't trivial out of the box.
> 
> I have things setup so I can use a clean Cygwin environment on my NT partition
> now, so perhaps I will do a better job at maintaining Cygwin build support in
> the future.
> 
> I would also like to mention that I got most of the required changes from
> Norman Vine's cygMakefile in gdal/pymod.  If I listened a little closer to
> what Norman keeps telling me I am sure we would have had much better cygwin
> support for some time.
> 
> 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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