The rteval utility requires some external software libraries to run
properly. These are:

python-lxml
  A python library to parse XML files and XSLT stylesheets
  http://lxml.de/

libxml2-python
  A python library to parse XML files
  http://xmlsoft.org/

rt-tests
  A collection of programs used to measure real-time behavior
  git://git.kernel.org/pub/scm/utils/rt-tests/rt-tests.git


$ git clone \
  git://git.kernel.org/pub/scm/utils/rt-tests/rt-tests.git
$ cd rt-tests && sudo make prefix=/usr install
$ cd ../rteval
$ sudo make install

That should do it (I hope).
