void gfxfontlist_free(gfxfontlist_t*list, char deletefonts);
gfxbbox_t* gfxline_isrectangle(gfxline_t*_l);
+gfxbbox_t gfxbbox_expand_to_bbox(gfxbbox_t box, gfxbbox_t box2);
gfxline_t*gfxline_makerectangle(double x1, double y1, double x2, double y2);
gfxline_t*gfxline_makecircle(double x,double y,double rx, double ry);