PDF DocBook generation from Emacs Org-Mode

Install docbook stylesheets, a xslt processor and a fo processor

$ brew install docbook saxon fop

And the following elisp code to .emacs file or init.el

https://gist.github.com/4534326

Or better, go for the emacs-starter-kit, see my version here: https://github.com/jm2dev/emacs24-starter-kit