Cloning this repository:

git clone git://gitorious.org/qtc-cppsupport/qtc-cppsupport.git qtc-cppsupport
cd qtc-cppsupport

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

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