Somewhere in the NR->Geom migration, the win32 build was broken. I could fix it tomorrow, but probably the best person would be the one modified the .h file, and knows what the mapping should be.
bob
=====================
Make error line 293: problem compiling: src/ui/dialog/filedialogimpl-win32.cpp: In member function 'bool Inkscape::UI::Dialog::FileOpenDialogImplWin32::set_svg_ preview()': src/ui/dialog/filedialogimpl-win32.cpp:872: error: no matching function for call to 'sp_item_invoke_bbox(SPItem*, boost::optionalNR::Rect&, Geom::Matrix, bool )' src/sp-item.h:216: note: candidates are: void sp_item_invoke_bbox(const SPItem*, boost::optional<Geom::D2Geom::Interval >&, const Geom::Matrix&, unsigned int, SPItem::BBoxType) src/sp-item.h:217: note: void sp_item_invoke_bbox(const SPItem*, NRRect*, const Geom::Matrix&, unsigned int, SPItem::BBoxType)