Hi, Sorry if this has been discussed before, but does rosdep/ros support dependencies in a PPA (Personal Package Archive)? Of course, if you have already added the PPA to your system, you can put a dependency on that package, but is there a way for rosdep to also add that ppa to your system as well? (On newer ubuntu versions this is done by "|sudo add-apt-repository ppa:user/ppa-name")| Hopefully my question is clear. -John