[Inkscape-devel] Warning in gradient-selector.cpp

I saw this warning during a compile, and this obviously needs to be fixed. If someone knows what 'doc' should be in this code, could they please fix it? It looks a bit dangerous.

Thanks, bob

====== SNIP ====== src/widgets/gradient-selector.cpp, line 302:

static void sp_gradient_selector_add_vector_clicked (GtkWidget *w, SPGradientSelector *sel) { SPDocument *doc; SPGradient *gr; Inkscape::XML::Node *repr; Inkscape::XML::Document *xml_doc = sp_document_repr_doc(doc);