No package contains either ibgvplugin_gdk.so.6.0.0 or libgvplugin_gtk.so.6.0.0: neither graphviz i386 architecture package nor amd64 architecture package.
Perhaps these symbolic links are an unintended remnant from the libgraphviz to graphviz transition.
If not, then libgvplugin_gdk.so.6.0.0 and libgvplugin_gtk.so.6.0.0 should be provided in the graphviz package.
PRETTY_NAME="Ubuntu 14.04.1 LTS"
VERSION="14.04.1 LTS, Trusty Tahr"
Package: libgraphviz-dev
Architecture: i386
Source: graphviz
Version: 2.36.0-0ubuntu3
In /usr/lib/graphviz, dangling symbolic links to non-existing files are created.
0 lrwxrwxrwx 1 root root 24 2014-02-20 14:11 libgvplugin_gdk.so -> libgvplugin_ gdk.so. 6.0.0 gtk.so. 6.0.0
0 lrwxrwxrwx 1 root root 24 2014-02-20 14:11 libgvplugin_gtk.so -> libgvplugin_
No package contains either ibgvplugin_ gdk.so. 6.0.0 or libgvplugin_ gtk.so. 6.0.0: neither graphviz i386 architecture package nor amd64 architecture package.
Perhaps these symbolic links are an unintended remnant from the libgraphviz to graphviz transition.
If not, then libgvplugin_ gdk.so. 6.0.0 and libgvplugin_ gtk.so. 6.0.0 should be provided in the graphviz package.