>>> Emerging : portage://media-libs/libpng-1.6.58:run?{[]}

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

Calculating dependencies... done!

 └─step  1─┤ download  portage://media-libs/libpng-1.6.58
             │           └─ file ─┤ 10.36 Kb  	 libpng-1.6.54-libpng-apng-apng.patch.gz
             │                    │ 1.02 Mb  	 libpng-1.6.58.tar.xz

 └─step  2─┤ update    portage://media-libs/libpng-1.6.58 (replaces pkg://media-libs/libpng-1.6.55)
             │           └─ conf ─┤ USE = "apng* -static-libs -test"
             │                    │ CPU_FLAGS_X86 = "sse*"
             │                    │ SLOT = "0/16"

 └─step  3─┤ run     portage://media-libs/libpng-1.6.58

Total: 3 actions (1 download, 1 update, 1 run), grouped into 3 steps.
       1.03 Mb to be downloaded.