>>> Emerging : portage://dev-util/lttng-tools-2.13.15-r2:run?{[]}

These are the packages that would be merged, in order:

Calculating dependencies... done!

 └─step  1─┤ download  portage://dev-libs/userspace-rcu-0.15.6
             │           └─ file ─┤ 669.98 Kb  	 userspace-rcu-0.15.6.tar.bz2
             │ download  portage://dev-util/lttng-tools-2.13.15-r2
             │           └─ file ─┤ 1.85 Mb  	 lttng-tools-2.13.15.tar.bz2
             │ download  portage://dev-util/lttng-ust-2.13.10
             │           └─ file ─┤ 1.30 Mb  	 lttng-ust-2.13.10.tar.bz2

 └─step  2─┤ install   portage://dev-libs/userspace-rcu-0.15.6
             │           └─ conf ─┤ USE = "-static-libs -test -verify-sig"
             │                    │ SLOT = "0/8"

 └─step  3─┤ run       portage://dev-libs/userspace-rcu-0.15.6

 └─step  4─┤ install   portage://dev-util/lttng-ust-2.13.10
             │           └─ conf ─┤ USE = "-examples -numa -test -verify-sig"
             │                    │ SLOT = "0/2.13"

 └─step  5─┤ run       portage://dev-util/lttng-ust-2.13.10

 └─step  6─┤ install   portage://dev-util/lttng-tools-2.13.15-r2
             │           └─ conf ─┤ USE = "ust -kmod -test -verify-sig"
             │                    │ SLOT = "0/2.13"

 └─step  7─┤ run     portage://dev-util/lttng-tools-2.13.15-r2

Total: 9 actions (3 downloads, 3 installs, 3 runs), grouped into 7 steps.
       3.80 Mb to be downloaded.