usr/include/graphviz
usr/lib/pkgconfig
usr/lib/*.so
usr/lib/graphviz/*.so

# usr/share/man/man3/*  w/o  gv_*.3 (bindings)
usr/share/man/man3/cdt.3
# usr/share/man/man3/graph.3   # lib/cgraph/ is now the default
usr/share/man/man3/cgraph.3
usr/share/man/man3/pathplan.3
usr/share/man/man3/gvc.3
usr/share/man/man3/xdot.3