#> equery uses ruby
[ Legend : U - final flag setting for installation]
[        : I - package is installed with flag     ]
[ Colors : set, unset                             ]
 * Found these USE flags for dev-lang/ruby-1.9.3_p194-r1:
 U I
 + + berkdb    : Adds support for sys-libs/db (Berkeley DB for MySQL)
 - - debug     : Enable extra debug codepaths, like asserts and extra output. If you want to get meaningful backtraces see
                 http://www.gentoo.org/proj/en/qa/backtraces.xml
 - - doc       : Adds extra documentation (API, Javadoc, etc). It is recommended to enable per package instead of globally
 - - examples  : Install examples, usually source code
 + + gdbm      : Adds support for sys-libs/gdbm (GNU database libraries)
 + + ipv6      : Adds support for IP version 6
 + + ncurses   : Adds ncurses support (console display library)
 + + rdoc      :  Install dev-ruby/rdoc after installing Ruby.
 - - readline  :  Use the sys-libs/readline library to provide the readline extension, used for instance by the irb tool. This flag
                 is meaningful only if the libedit USE flag is disabled. If neither libedit nor readline USE flags are enabled, the
                 readline extension will not be built (and irb will lose line editing functionality).
 - - rubytests :  Install ruby tests that can only be run after ruby is installed
 - - socks5    : Adds support for the socks5 proxy
 + + ssl       : Adds support for Secure Socket Layer connections
 - - tk        : Adds support for Tk GUI toolkit
 - - xemacs    : Add support for XEmacs
 + + yaml      :  Use the dev-libs/libyaml library to build the psych extension, available since Ruby 1.9.2_rc2, in alternative to
                 the bundled syck-based parser.