>>> Emerging : portage://media-libs/libaom-3.12.1:run?{[]}

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

Calculating dependencies... done!

 └─step  1─┤ download  portage://dev-lang/yasm-1.3.0-r2
             │           └─ file ─┤ 1.42 Mb  	 yasm-1.3.0.tar.gz
             │ download  portage://media-libs/libaom-3.12.1
             │           └─ file ─┤ 5.24 Mb  	 libaom-3.12.1.tar.gz

 └─step  2─┤ install   portage://dev-lang/yasm-1.3.0-r2
             │           └─ conf ─┤ USE = "nls"

 └─step  3─┤ install   portage://media-libs/libaom-3.12.1
             │           └─ conf ─┤ USE = "examples -debug -doc -test"
             │                    │ CPU_FLAGS_X86 = "avx avx2 mmx* sse* sse2* sse3* sse4_1 sse4_2* ssse3*"
             │                    │ SLOT = "0/3"

 └─step  4─┤ run     portage://media-libs/libaom-3.12.1

Total: 5 actions (2 downloads, 2 installs, 1 run), grouped into 4 steps.
       6.67 Mb to be downloaded.