Installing Graphviz 2.26.0 on Mac OS X 10.6.1 Snow LeopardEdit

$ curl -O http://www.graphviz.org/pub/graphviz/stable/macos/snowleopard/graphviz-2.26.0.pkg
$ open graphviz-2.26.0.pkg

Note on using Graphviz with Doxygen

The package installs the dot command line tool into /usr/local/bin/, so if you are using Graphviz with Doxygen you may need to ensure that your Doxyfile contains an entry like:

DOT_PATH  = /usr/local/bin