Cloning this repository:

git clone git://gitorious.org/rtm-glib/rtm-glib.git rtm-glib
cd rtm-glib

Add this repository as a remote to an existing local repository:

git remote add rtm-glib git://gitorious.org/rtm-glib/rtm-glib.git
git fetch rtm-glib
git checkout -b my-local-tracking-branch rtm-glib/master_or_other_branch