http://www.mail-archive.com/stdcxx-dev@incubator.apache.org/msg03858.html
The first step will be to download and set up the tool. In this post Justin gives some suggestions: http://www.mail-archive.com/stdcxx-dev@incubator.apache.org/msg03764.html
Here are a couple of links to other Apache projects that use it. They could be helpful in getting it up and running: http://www.mail-archive.com/stdcxx-dev@incubator.apache.org/msg03865.html