Bugzilla Bug 248599

Affected man pages are:
man/emerge.1:
       set    A set is a convenient shorthand for a large group of packages. 
Two sets are currently  always  available:  system  and  world.
              system  refers to a set of packages deemed necessary for your
system to run properly. world contains all the packages listed in
              /var/lib/portage/world.  [See FILES below for more information.]
Other sets can exist depending on the  current  configuration.
              The  default set configuration is located in
/usr/share/portage/config/sets.conf. Note that a set is generally used in
conjunc‐
              tion with --update. When used as arguments to emerge sets have to
be prefixed with @ to  be  recognized.  Use  the  --list-sets
              action to display a list of available package sets.

man/make.conf.5:
              preserve-libs
                     Preserve libraries when the sonames change during upgrade
or downgrade.  Libraries are preserved only  if  consumers  of
                     those libraries are detected.

Thanks for fixing this :-)

Reproducible: Always

:-S, it has been formatted so bad...

Affected files are man/emerge.1 (references to "sets") and man/make.conf.5
(references to "preserve-libs")

If the @set function is being removed, the emerge script also needs to be
updated:

# emerge --list-sets
system
world

# emerge @system
!!! '@system' is not a valid package atom.
!!! Please check ebuild(5) for full details.

# emerge @world
!!! '@world' is not a valid package atom.
!!! Please check ebuild(5) for full details.

I think it's all fixed in svn r12085. When viewcvs updates you can see the
changes here:

http://sources.gentoo.org/viewcvs.py/portage?view=rev&rev=12085

(In reply to comment #2)
I've removed --list-sets in the above commit.

This is fixed in 2.1.6_rc2.

Thanks a lot