>>> Emerging : portage://dev-cpp/nlohmann_json-3.12.0-r1:run?{[]}

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

Calculating dependencies... done!

 └─step  1─┤ download  portage://dev-cpp/nlohmann_json-3.12.0-r1
             │           └─ file ─┤ 9.23 Mb  	 nlohmann_json-3.12.0.tar.gz

 └─step  2─┤ install   portage://dev-cpp/nlohmann_json-3.12.0-r1
             │           └─ conf ─┤ USE = "-test"

 └─step  3─┤ run     portage://dev-cpp/nlohmann_json-3.12.0-r1

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