>>> Emerging : portage://dev-libs/libsigc++-3.6.0:run?{[]}

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

Calculating dependencies... done!

 └─step  1─┤ download  portage://dev-libs/libsigc++-3.6.0
             │           └─ file ─┤ 968.16 Kb  	 libsigc++-3.6.0.tar.xz

 └─step  2─┤ install   portage://dev-libs/libsigc++-3.6.0
             │           └─ conf ─┤ USE = "-gtk-doc -test"
             │                    │ SLOT = "3"

 └─step  3─┤ run     portage://dev-libs/libsigc++-3.6.0

Total: 3 actions (1 download, 1 install, 1 run), grouped into 3 steps.
       968.16 Kb to be downloaded.