Something

Portage 2.1.3_rc9 (default-linux/amd64/2007.0, gcc-4.1.2, glibc-2.6-r0, 2.6.22.1 x86_64)
=================================================================
System uname: 2.6.22.1 x86_64 Dual Core AMD Opteron(tm) Processor 165
Gentoo Base System release 1.12.10
Timestamp of tree: Sun, 29 Jul 2007 14:50:01 +0000
distcc 2.18.3 x86_64-pc-linux-gnu (protocols 1 and 2) (default port 3632) [enabled]
ccache version 2.4 [disabled]
dev-java/java-config: 1.3.7, 2.0.33-r1
dev-lang/python:     2.4.4-r4
dev-python/pycrypto: 2.0.1-r6
dev-util/ccache:     2.4-r7
sys-apps/sandbox:    1.2.18.1
sys-devel/autoconf:  2.13, 2.61-r1
sys-devel/automake:  1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10
sys-devel/binutils:  2.17.50.0.17
sys-devel/gcc-config: 1.3.16
sys-devel/libtool:   1.5.24
virtual/os-headers:  2.6.22-r2
ACCEPT_KEYWORDS="amd64 ~amd64"
AUTOCLEAN="yes"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-O2 -march=opteron -pipe -mfpmath=sse -fomit-frame-pointer -fweb -msse3"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/share/X11/xkb /usr/share/config"
CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/gconf /etc/php/apache2-php5/ext-active/ /etc/php/cgi-php5/ext-active/ /etc/php/cli-php5/ext-active/ /etc/revdep-rebuild /etc/terminfo /etc/texmf/web2c"
CXXFLAGS="-O2 -march=opteron -pipe -mfpmath=sse -fomit-frame-pointer -fweb -msse3"
DISTDIR="/usr/portage/distfiles"
FEATURES="distcc distlocks metadata-transfer parallel parallel-fetch sandbox sfperms strict unmerge-orphans"
GENTOO_MIRRORS="http://gentoo.informatik.uni-oldenburg.de http://mirror.switch.ch/ftp/mirror/gentoo/"
LANG="de_DE.UTF-8"
MAKEOPTS="-j8"
PKGDIR="/usr/portage/packages"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --delete-after --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --filter=H_**/files/digest-*"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/local/portage"
SYNC="rsync://gentoo.informatik.uni-oldenburg.de/gentoo-portage"
USE="3dnow 3dnowext X a52 aac acl acpi alsa amd64 amr apm async avi bash-completion berkdb bitmap-fonts browserplugin bzip2 cairo cdr cjk cli cracklib crypt cups dbus dga dio divx4linux djvu dlloader dri dvd dvdr dvi encode evdev exif fat ffmpeg firefox flac foomaticdb ftp gdbm gecko-sdk gif gpm gtk gtk2 gtkhtml iconv icq imagemagick ipv6 isdnlog java jpeg junit kdeenableefinal kdeenablefinal kdehiddenvisibility libg++ mad matroska midi mmx mmxext mp3 mpeg mplayer mudflap ncurses network-cron nls nptl nptlonly nsplugin nvidia ogg oggvorbis openal opengl openmp oss pam pcre perl pic png ppds pppd pulseaudio python qt3 qt4 quicktime readline reflection reiserfs rtc samba sdl session smp speex spell spl srt sse sse2 ssl subtitles t1lib tcpd theora threads threadsafe tiff truetype truetype-fonts type1-fonts udev unicode usb videos vorbis x264 xml xml2 xorg xv xvid xvmc zlib" ALSA_CARDS="emu10k1" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mulaw multi null plug rate route share shm softvol" ELIBC="glibc" INPUT_DEVICES="keyboard evdev mouse" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIRC_DEVICES="serial" USERLAND="GNU" VIDEO_CARDS="nvidia"
Unset:  CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, LDFLAGS, LINGUAS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS






honk@honk ~ $ emerge -pv =gcc-4.2.0

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

Calculating dependencies... done!
[ebuild   R   ] sys-devel/gcc-4.2.0  USE="gtk mudflap nls openmp test (-altivec) -bootstrap -build -doc -fortran -gcj (-hardened) -ip28 -ip32r10k (-multilib) -multislot (-n32) (-n64) -nocxx -objc -objc++ -objc-gc -vanilla" 0 kB [0]