[~/dev/shrinkwrap/api]$ dot -v
dot - graphviz version 2.28.0 (20120228.1928)
libdir = "/usr/lib64/graphviz"
Activated plugin library: libgvplugin_pango.so.6
Using textlayout: textlayout:cairo
Activated plugin library: libgvplugin_dot_layout.so.6
Using layout: dot:dot_layout
Activated plugin library: libgvplugin_core.so.6
Using render: dot:core
Using device: dot:dot:core
The plugin configuration file:
	/usr/lib64/graphviz/config6
		was successfully loaded.
    render	:  cairo dot fig gd lasi map ps svg tk vml vrml xdot
    layout	:  circo dot fdp neato nop nop1 nop2 osage patchwork sfdp twopi
    textlayout	:  textlayout
    device	:  bmp canon cmap cmapx cmapx_np dot eps fig gd gd2 gif gtk gv ico imap imap_np ismap jpe jpeg jpg pdf plain plain-ext png ps ps2 svg svgz tga tif tiff tk vml vmlz vrml wbmp x11 xdot xlib
    loadimage	:  (lib) eps gd gd2 gif jpe jpeg jpg png ps svg xbm