Ideally collection and display should be split with a USE flag. This way, users can avoid having to install an entire X11 system with opentype, gtk, etc if they just want some statistics! (FWIW, it seems Ubuntu uses a split approach: https://wiki.ubuntu.com/BootCharting ...)
+*bootchart2-0.14.5-r1 (30 Jan 2013) + + 30 Jan 2013; Justin Lecher <jlec@gentoo.org> -bootchart2-0.14.2-r3.ebuild, + -bootchart2-0.14.4.ebuild, +bootchart2-0.14.5-r1.ebuild, metadata.xml: + drop old; add USE=X for track-only installations, #454340; move to new python + eclasses +