>>> Emerging : portage://sys-devel/m4-1.4.19-r2:run?{[]}

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

Calculating dependencies... done!

 └─step  1─┤ download  portage://sys-devel/m4-1.4.19-r2
             │           └─ file ─┤ 6.14 Kb  	 m4-1.4.19-test-198-sysval-r1.patch.gz
             │                    │ 1.58 Mb  	 m4-1.4.19.tar.xz

 └─step  2─┤ downgrade portage://sys-devel/m4-1.4.19-r2 (replaces pkg://sys-devel/m4-1.4.21)
             │           └─ conf ─┤ USE = "nls -examples -verify-sig"

 └─step  3─┤ run     portage://sys-devel/m4-1.4.19-r2

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