macOS App project for Graphviz
This project originates from the contents of the macosx folder of the Graphviz project repository.
To build this project, first install Graphviz on your Mac, which this project assumes is configured specifying --with-quartz --prefix=/usr/local/graphviz.
Then run make to install this app into /Applications/Graphviz.app.
make PREFIX=/usr/local/graphviz