>>> Emerging : portage://media-libs/assimp-6.0.2:run?{[]}

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

Calculating dependencies... done!

 └─step  1─┤ useflag portage://sys-libs/zlib-1.3.2-r1 (minizip)

 └─step  2─┤ download  portage://media-libs/assimp-6.0.2
             │           └─ file ─┤ 145.17 Mb  	 assimp-6.0.2.tar.gz
             │ download  portage://sys-libs/zlib-1.3.2-r1
             │           └─ file ─┤ 1.26 Mb  	 zlib-1.3.2.tar.xz

Total: 3 actions (1 useflag, 2 downloads), grouped into 2 steps.
       146.43 Mb to be downloaded.


>>> Assumptions taken during proving & planning:

  USE flag change (1 package):
  Add to /etc/portage/package.use:
    sys-libs/zlib minizip