Cloning this repository:

git clone git://gitorious.org/~aarnek/qt/aarneks-s60-linux-mkspec.git aarneks-s60-linux-mkspec
cd aarneks-s60-linux-mkspec

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

git remote add aarneks-s60-linux-mkspec git://gitorious.org/~aarnek/qt/aarneks-s60-linux-mkspec.git
git fetch aarneks-s60-linux-mkspec
git checkout -b my-local-tracking-branch aarneks-s60-linux-mkspec/master_or_other_branch