Paul Deppe writes:
>
> With the latest chnages to SSG, the following error occurs when compiling
> src/Objects/obj.cxx from FlightGear (Cygwin/Win2k/gcc3.2):
>
> if
> ++ -DHAVE_CONFIG_H -I. -I. -I../../src/Include -I../.. -I../../src -I/usr/l
> ocal/include -O2 -MT obj.o -MD -MP -MF ".deps/obj.Tpo" \
> -c -o obj.o `test -f 'obj.cxx' || echo './'`obj.cxx; \
> then mv ".deps/obj.Tpo" ".deps/obj.Po"; \
> else rm -f ".deps/obj.Tpo"; exit 1; \
> fi
> obj.cxx: In member function `void LeafUserData::setup_triangle(int)':
> obj.cxx:625: cannot allocate an object of type `DummyBSphereEntity'
> obj.cxx:625: because the following virtual functions are abstract:
> /usr/include/plib/ssg.h:1175: virtual void ssgEntity::getStats(int*, int*,
> int*, int*)
> obj.cxx: In function `void gen_random_surface_objects(ssgLeaf*, ssgBranch*,
> Point3D*, const std::string&)':
> obj.cxx:764: cannot allocate an object of type `DummyBSphereEntity'
> obj.cxx:764: since type `DummyBSphereEntity' has abstract virtual
> functions
> make[2]: *** [obj.o] Error 1
>
> obj.cxx hasn't changed since 11/25/02 so this seems to be PLIB-related.
The following change allows FlightGear to compile with the PLIB CVS
Index: obj.cxx
===================================================================
RCS file: /var/cvs/FlightGear-0.9/FlightGear/src/Objects/obj.cxx,v
retrieving revision 1.12
diff -r1.12 obj.cxx
520a521
> virtual void getStats ( int *num_branches, int *num_leaves, int *num_tris, int
>*num_verts );
522a524,530
> void DummyBSphereEntity::getStats ( int *num_branches, int *num_leaves, int
>*num_tris, int *num_verts )
> {
> *num_branches = 0 ;
> *num_leaves = 1 ; /* this! */
> *num_tris = 0 ;
> *num_verts = 0 ;
> }
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