>>> Emerging : portage://games-arcade/opensonic-0.1.4-r4:run?{[]}

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

Calculating dependencies... done!

 └─step  1─┤ useflag portage://media-libs/allegro-4.4.3.1-r1 (vorbis)

 └─step  2─┤ download  portage://games-arcade/opensonic-0.1.4-r4
             │           └─ file ─┤ 3.03 Kb  	 loggcompat-4.4.2.tar.gz
             │                    │ 10.04 Mb  	 opensnc-src-0.1.4.tar.gz
             │ download  portage://media-libs/allegro-4.4.3.1-r1
             │           └─ file ─┤ 4.45 Mb  	 allegro-4.4.3.1.tar.gz
             │ download  portage://media-libs/alsa-lib-1.2.16.1
             │           └─ file ─┤ 1.08 Mb  	 alsa-lib-1.2.16.1.tar.bz2
             │ download  portage://media-libs/alsa-topology-conf-1.2.5.1-r1
             │           └─ file ─┤ 11.42 Kb  	 alsa-topology-conf-1.2.5.1.tar.bz2
             │ download  portage://media-libs/alsa-ucm-conf-1.2.16.1
             │           └─ file ─┤ 82.32 Kb  	 alsa-ucm-conf-1.2.16.1.tar.bz2
             │ download  portage://media-libs/libogg-1.3.6
             │           └─ file ─┤ 429.64 Kb  	 libogg-1.3.6.tar.xz
             │ download  portage://media-libs/libvorbis-1.3.7-r2
             │           └─ file ─┤ 1.15 Mb  	 libvorbis-1.3.7.tar.xz
             │ download  portage://x11-libs/libXcursor-1.2.3
             │           └─ file ─┤ 285.90 Kb  	 libXcursor-1.2.3.tar.xz
             │ download  portage://x11-libs/libXxf86dga-1.1.7
             │           └─ file ─┤ 269.71 Kb  	 libXxf86dga-1.1.7.tar.xz

Total: 10 actions (1 useflag, 9 downloads), grouped into 2 steps.
       17.77 Mb to be downloaded.


>>> Assumptions taken during proving & planning:

  USE flag change (1 package):
  Add to /etc/portage/package.use:
    media-libs/allegro vorbis