[gdal-dev] [OGR] Build GDAL 1.6 with OGDI enabled

[Frank Warmerdam]

Alexandre Gacon wrote:
> Hi,
> 
> We had some problems to enable the OGDI driver in the 1.6.0 version of 
> GDAL/OGR, with Windows.
> 
> The OGDI library uses the zlib library in version 1.1.4 as a dynamic 
> library, whereas GDAL uses the same library in version 1.2.? as a static 
> library. Thus there is name conflicts in the linking of the GDAL dll 
> with the zlib related functions.
> 
> In order to make the driver works, we had to do the following things in 
> the file port/makefile.vc <http://makefile.vc> :
> 
> - Remove the -DHAVE_ZLIB from the EXTRAFLAGS variable.
> - Remove the cpl_vsil_gzip.obj entry from the OBJ list.
> 
> With this we manage to compile and link GDAL with the OGDI driver (But 
> we lost the abality of GDAL 1.6 to read files inside zip/gzip files).
> 
> Could you think of a better solution ? Perhaps encapsulating the 
> cpl_vsil_gzip methods code in #ifdef HAVE_ZLIB would be a first solution.

Alexandre,

I would note it should also be possible to build OGDI with more recent
zlib's with some adjustments in it's build.   I presume that is what I
did for the OGDI package in OSGeo4W.

Best regards,
-- 
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