wasp: with no geos support, fixed segfault and test


git-svn-id: https://svn.osgeo.org/gdal/trunk/gdal@27062 f0d54148-0727-0410-94bb-9a71ac55c965
wasp: fixed coverity warnings


git-svn-id: https://svn.osgeo.org/gdal/trunk/gdal@27063 f0d54148-0727-0410-94bb-9a71ac55c965