[Gdal-dev] missing libproj.so

[Chapman, Martin]

Why are you using cygwin?  I run gdal and proj4 fine on windows without
it.  What is the benefit of using cygwin?

Martin 

-----Original Message-----
From: Frank Warmerdam [mailto:warmerdam at pobox.com] 
Sent: Wednesday, February 11, 2004 1:47 PM
To: gdal-dev at remotesensing.org
Subject: Re: [Gdal-dev] missing libproj.so


Matt Wilkie wrote:
> Hello Listers,
> 
> I'm attempting to run gdalwarp on a tiff image with GCPs which is not
> "north to top". I get the error message
> 
>     ERROR 6: Unable to load PROJ.4 library (libproj.so), \
>     creation of
>     OGRCoordinateTransformation failed.
> 
> I thought proj.4 is installed with gdal, is this not the case? "locate
> libproj.so" comes up empty (and the locatedb is current).
> 
> I'm running gdal-cvs-040211 on cygwin-winxp; installed with 
> "./configure
> && make && make install".

Matt,

By default GDAL is built to try and dynamically load libproj.so at
runtime. The good part of this is that you don't need to have libproj
around to build GDAL, but if you later install it - bam - GDAL's
projection support starts working too.

You can try building and installing PROJ now and see if things work, but
this stuff may be fragile on Cygwin.

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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