>>> Emerging : portage://sci-libs/gsl-2.7.1-r3:run?{[]}

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

Calculating dependencies... done!

 └─step  1─┤ download  portage://sci-libs/gsl-2.7.1-r3
             │           └─ file ─┤ 11.79 Kb  	 gsl-2.7-cblas.patch.bz2
             │                    │ 7.16 Mb  	 gsl-2.7.1.tar.gz

 └─step  2─┤ install   portage://sci-libs/gsl-2.7.1-r3
             │           └─ conf ─┤ USE = "deprecated -cblas-external -static-libs"
             │                    │ SLOT = "0/27"

 └─step  3─┤ run     portage://sci-libs/gsl-2.7.1-r3

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