v.in.dwg input=map.dwg output=map
The toolkit, for example ad27linx.tar, unpack in a directory (e.g. /home/usr1/opendwg27) and use the related configure options to tell GRASS about it:
./configure \ ... \ --with-opendwg \ --with-opendwg-includes=/home/usr1/opendwg27 \ --with-opendwg-libs=/home/usr1/opendwg27
Not all entity types are supported (warning printed).
Last changed: $Date$