gdal trunk doesn't compile with ./configure --without-ogr

[Even Rouault]

I don't know if --without-ogr is still supposed to work, but it doesn't actually.

After a fresh checkout and ./configure --without-libtool --without-ogr --with-libtiff=internal

I get the following linking errors when linking gdalinfo for example (on r12105):

libgdal.so: undefined reference to `AVCBinReadOpen'
libgdal.so: undefined reference to `AVCBinReadClose'
libgdal.so: undefined reference to `DGN2IEEEDouble(void*)'
libgdal.so: undefined reference to `AVCBinReadNextTableRec'

The AVC symbols come from ogr/ogrsf_frmts/avc and are used by frmts/aigrid The DGN2IEEEDouble symbol comes from ogr/ogrsf_frmts/dgn/dgnfloat.cpp and is used by frmts/ingr/IngrTypes.cpp.

I guess we should disable the building of the ingr and aigrid drivers when OGR building is disabled.

[warmerdam]

Mateusz,

Could you do the following:

• Put a copy of the DGN2IEEEDouble() function into gdal/frmts/ingr with a distinct name (perhaps INGRDGN2IEEEDouble()) to remove this dependency.
• See if the aigrid driver can be modified to avoid using the AVC code (at the cost of support info tables) if OGR is not available.
• Do testing on windows and linux of building GDAL without OGR.

This is not terrible high priority but it would be desirable to resolve it before 1.5 release.

[Even Rouault]

I'm attaching a patch for dropping the dependency on DGN2IEEEDouble

[Even Rouault]

I think this should not be closed as there's still the problem with the AVC code