Not sure if this actually affects anyone, but I ran across a clump of warnings

display/guideline.cpp: In function ‘void sp_guideline_render (SPCanvasItem*, SPCanvasBuf*)’: display/guideline.cpp:140: warning: passing ‘double’ for argument 3 to ‘void sp_guideline_drawline(SPCanvasBuf*, gint, gint, gint, gint, guint32)’ ...

eight of those in a row. I'll be fixing them.