>>> Emerging : portage://sci-physics/bullet-3.21:run?{[]}

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

Calculating dependencies... done!

 └─step  1─┤ download  portage://sci-physics/bullet-3.21
             │           └─ file ─┤ 126.88 Mb  	 bullet-3.21.tar.gz

 └─step  2─┤ install   portage://sci-physics/bullet-3.21
             │           └─ conf ─┤ USE = "openmp threads* (-tbb) (-test) -doc -double-precision -examples -extras"
             │                    │ SLOT = "0/3.21"

 └─step  3─┤ run     portage://sci-physics/bullet-3.21

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