refs #5204 Change-Id: Ic6e2ce789746a18cdb8b97e5a4e8175a89ad2e8d
* set dependency versions: PPA, git repository & commit * separate download and build+install steps * don't reinstall package if it's already installed refs #4630 Change-Id: I966fac5e1633cbabf78ce20cd151a35618efc345