====== How to set up your environment on TUM-Rosie for distcc and ccache ======
  * Get the packages installed
  apt-get install distcc ccache

  * Set up the environment in your ~/.bashrc :

  export CCACHE_PREFIX=distcc
  export DISTCC_HOSTS='username@amy/8:/usr/bin/distccd username@leela/8:/usr/bin/distccd'
  export ROS_PARALLEL_JOBS="-j18"
  export PATH=${HOME}/local/bin:${PATH}

  * Create the following links in your ~/local/bin:

  cd ~/local/bin
  ln -s /usr/bin/ccache cc
  ln -s /usr/bin/ccache c++
  ln -s /usr/bin/ccache gcc
  ln -s /usr/bin/ccache g++

  * Make it faster by activating ssh connection caching. Add this to ~/.ssh/config :

  Host *
    ControlMaster auto
    ControlPath ~/.ssh_tmp/master-%r@%h:%p

  * Create the temporary ssh directory:

  mkdir ~/.ssh_tmp

  * Make sure you have your ssh-agent running, and that you can log in to amy without a password
  * Test with your favorite compile! You should see compilers running on amy and leela.