[Gdal-dev] how to link gdal to my programs?

[Andrew Finley]

Hi Pushkar,
Assuming that your ld.so.conf file has the correct path to the gdal
lib, and you have run ldconfig you should be able to link the lib
like this:

g++ /usr/local/lib/libgdal.1.1.so something.cpp

Your include in something.cpp might be:

#include "/usr/local/include/gdal_priv.h"
#include "/usr/local/include/ogr_spatialref.h"

hope this helps
-andy

On Tue, 2004-01-13 at 16:19, Pushkar Pradhan wrote:
> I'm having a little trouble linking gdal libs. to my C++ code.
> These are the compile errors:
> Redstone[1234] pushkar$ g++ -g -o main
> dwt-serial.cpp -Ierrs/ -Imisc/ -Iip/ -I../gdal-1.1.9/include/
> dwt-serial.cpp: In function `int main(int, char **)':
> dwt-serial.cpp:20: `GDALDataset' undeclared (first use this function)
> dwt-serial.cpp:20: (Each undeclared identifier is reported only once
> dwt-serial.cpp:20: for each function it appears in.)
> dwt-serial.cpp:20: `poDataset' undeclared (first use this function)
> dwt-serial.cpp:26: parse error before `)'
> 
> I tried -lgdal.1.1, -lgdal.1.1.9 but neither worked. I've set the path to
> GDAL (/rstc/user1/erc/pushkar/gdal-1.1.9/lib) in my $LD_LIBRARY_PATH
> 
> Here's my first code:
> #include <gdal.h>
> <--other includes-->
> int main(int argc, char **argv)
> {
>   char *inFile;
>   char *dwtFile;
> 
>   GDALDataset *poDataset;
> 
>   GDALAllRegister();
> 
>   inFile = argv[1];
> 
>   poDataset = (GDALDataset *) GDALOpen(inFile, GA_ReadOnly);
>   if(poDataset == NULL)
>     exit(EXIT_FAILURE);
> }
> 
> Sorry if it was on the gdal homepage and I missed it. Can somebody help.
> Thanks
> Pushkar
> 
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-- 
Andrew Finley, Research Fellow
Department of Forest Resources
College of Natural Resources           
University of Minnesota
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