+1 I am waiting on this. http://www.graphviz.org/mantisbt/view.php?id=2212 (fixed in 2.28.)
I am trying to build from git://git.debian.org/git/collab-maint/graphviz.git using git-buildpackage... But the build fails for [unstable] and [upstream/2.28.0] doesn't contain debian magic. That's as far as I got. :) Cheers, thanks!