Hello Audrey,

When I was working off a custom built Win32 Mapnik, I experienced a similar error with the PostGIS plugin. My build was dynamically linking libpq and I had to set an environment variable (LTDL_LIBRARY_PATH) to point to the location of libpq.dll. Perhaps you could try setting that variable to point to the gdal/ogr .dll.

I have since moved to the standard project-released binaries and have noticed that I no longer need LTDL_LIBRARY_PATH set. I presume they are statically linking the required libraries. Using static libraries could be another option for you.

Best of luck,
-- Ryan

On , "AMal." <[email protected]> wrote:


Hi Nicolas,



I have the same problem. I built mapnik, agg, input_raster and

input_shapefile successfully with vs 2005.

I have the same error wih ogr and gdal plugin. (libtool can't open the

module)



Did you find a solution?



Best regards,



Audrey Malherbe





Nicolas Gillet wrote:

>

> Hello

>

>

>

> I'm slowly discovering the world of mapnik in pure C++.

>

>

>

> I wanted to use raster file and in order to do this I think I have the

> choice between raster.input and gdal.input plugins.

>

>

>

> I successfully built both from trunk sources under Visual Studio 2005 and

> used raster plugin but I coan't use gdal plugin.

>

>

>

> I made a test based on the rundemo.cpp I successfully ran before but at

> the

> beginning of the program I have an error saying :

>

> Problem loading plugin library: C:\...gdal.input (libtool error: can't

> open

> the module)

>

> @ line : register_datasources(mapnik_dir

> +

> "/input/"); >>

>

> I'm using gnuWin32 libtool-1.5.26

>

>

>

> I read (here http://trac.mapnik.org/wiki/PluginArchitecture) that gdal

> plugin is still in beta so it wonder if there is something special to do

> to

> enable it.

>

> I tried to use the gdal.input given with the python example but the result

> is the same.

>

>

>

> Any tips in this area ?

>

>

>

> Thank you

>

>

>

> Nicolas

>

> Gillet

>

>

> _______________________________________________

> Mapnik-users mailing list

> [email protected]

> https://lists.berlios.de/mailman/listinfo/mapnik-users

>

>



--

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