more work on GL_ARB_texture_cube_map

src/mesa/main/texobj.c

@@ -306,6 +306,10 @@ _mesa_test_texobj_completeness( const GLcontext *ctx,
                return;  /* found smallest needed mipmap, all done! */
             }
          }
+      }
+      else if (t->Dimensions == 6) {  /* cube map */
+
+
       }
       else {
          /* Dimensions = ??? */