OK, after pkg install bash llvm40 openjdk8
, the make install clean
for unifi5 completed successfully, although it still took two hours to complete. And rather than being nearly 11 GB at the error point, the jail is only taking 2.6 GB of space (edit: though it's entirely possible that if the compile had completed successfully, the clean would have reduced the size on the first try). I'm able to log in to the controller and set it up without issues.
Edit: For context, that two-hour build time wasn't on my main server but a test box--one blade of a Dell C6100, 2x Xeon X5650 CPUs, 48 GB RAM, jails on a mirrored pool of 2 x 6 TB disks. Probably would have gone faster on an SSD, but that does seem like quite a long time.