emerge --pretend --depclean
[snipped standard safety warning]
!!! You have no world file.
!!! Proceeding is likely to break your installation.
Calculating dependencies ... done!
>>> No packages selected for removal by depclean
>>> To see reverse dependencies, use --verbose
Packages installed: 816
Packages in world: 0
Packages in system: 49
Required packages: 816
Number to remove: 0
No world file, 800+ packages installed, yet depclean reports nothing to remove. How can this be? No sane @system is that huge, and mine is no exception.
Simple. I just finished converting my entire world file into sets. As everything from the world file is now in sets, and all those sets are in world_sets, there's no longer a need for a world file, and I have none.
So now we need a new line in that summary, listing the number of packages in sets, and/or a line listing the number of sets in the world_sets file, so the summary will be complete and look sane once again. =:^)
(This should be simple enough to implement I hope. I also hope it's not a dupe request as it seems common sense enough it's hard to believe I'm the first to think of it, but I couldn't find any other such bugs, so...)
This is fixed in git:
Thanks. Looking forward to seeing it in a 2.2.0-alpha in few days. =:^)
This is fixed in 184.108.40.206 and 2.2.0_alpha150.