[Gdal-dev] Re: OGR with Geos in Windows?

[Frank Warmerdam]

Rodrigo Aceves wrote:
> Hi Frank,
> 
> I've done as you suggested and it compiled OK, but when it comes to link
> there are a lot of warnings and errors. The errors are something like
> "function already defined in geos.lib" and at the end it says "library
> conflicts, use /NODEFULTLIB:library". The problem is with two libraries. But
> when I use de NODEFAULT there are more erros. This time the errors say
> "scanf not defined" or something like that.
> 
> Let me explain what I did: I created an empty project in VC .NET and added
> all the files of GEOS and compiled, it worked after minor changes in the
> code. So it produced a geos.lib file.
> 
> Then I use your suggestion and added geos.lib to the ADD_LIBS path. And put
> the headers diretory inside the ogr directory. I defined HAVE_GEOS and ran
> Nmake.
> 
> That's when I get all this errors.
> 
> Any idea?

Rodrigo,

You didn't compile GEOS with the same compiler options as GDAL is compiled with.
You likely need /MD instead of /MT or something like that.  You can likely
fiddle about with your geos building project to fix this.  If it were up to
me, i would just make up a quick makefile.vc and include the GDAL nmake.opt
for options, but then I am a bit of a throwback.

Best regards,
-- 
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