Mine

Portage 2.1.2_pre3-r5 (default-linux/x86/2006.0, gcc-4.1.1, glibc-2.4-r4, 2.6.17-emission8 i686)
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System uname: 2.6.17-emission8 i686 AMD Athlon(tm) 64 Processor 3000+
Gentoo Base System version 1.12.5
Last Sync: Fri, 20 Oct 2006 18:30:01 +0000
ccache version 2.4 [enabled]
app-admin/eselect-compiler: [Not Present]
dev-java/java-config: 1.3.7, 2.0.30
dev-lang/python:     2.4.3-r4
dev-python/pycrypto: 2.0.1-r5
dev-util/ccache:     2.4-r6
dev-util/confcache:  [Not Present]
sys-apps/sandbox:    1.2.18.1
sys-devel/autoconf:  2.13, 2.60
sys-devel/automake:  1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2
sys-devel/binutils:  2.17-r4, 2.17.50.0.5
sys-devel/gcc-config: 1.3.13-r4
sys-devel/libtool:   1.5.22
virtual/os-headers:  2.6.17-r1
ACCEPT_KEYWORDS="x86 ~x86"
AUTOCLEAN="yes"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-Os -march=athlon64 -frename-registers -fweb -pipe -fomit-frame-pointer -funit-at-a-time -freorder-blocks -fno-ident -freorder-blocks-and-partition -fgcse-sm -fgcse-las -fgcse-after-reload -fmerge-all-constants -combine -msse3"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/X11/xkb /usr/share/config"
CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/gconf /etc/java-config/vms/ /etc/revdep-rebuild /etc/splash /etc/terminfo"
CXXFLAGS="-Os -march=athlon64 -frename-registers -fweb -pipe -fomit-frame-pointer -funit-at-a-time -freorder-blocks -fno-ident -freorder-blocks-and-partition -fgcse-sm -fgcse-las -fgcse-after-reload -fmerge-all-constants -combine -msse3 -fvisibility-inlines-hidden"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoconfig ccache distlocks metadata-transfer sandbox sfperms strict"
GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/linux/distributions/gentoo"
LDFLAGS="-Wl,-O1"
LINGUAS="pt_BR"
MAKEOPTS="-j2"
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"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/local/overlays/conrad /usr/local/portage"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="x86 3dnow 3dnowext X aac alsa apache2 apm ati berkdb bitmap-fonts bzip2 cli cpudetection cracklib crypt cups dlloader dri dvd dvdr dvdread eds elibc_glibc emboss encode esd ffmpeg foomaticdb fortran gdbm gif gnome gpm gtk gtk2 hashstyle imlib input_devices_evdev input_devices_keyboard input_devices_mouse ipv6 isdnlog jpeg kde kernel_linux libg++ libwww linguas_pt_BR mad mikmod mmx mmxext motif mp3 mpeg mplayer ncurses nls nptl nptlonly ogg opengl oss pam pcre perl png pppd python qt qt3 qt4 quicktime readline reflection sdl session spell spl sse sse2 ssl tcpd truetype truetype-fonts type1-fonts udev unicode userland_GNU v4l video_cards_dri video_cards_fglrx video_cards_radeon video_cards_vesa visualization vorbis win32codecs wma xcomposite xine xml xmms xorg xv xvid zlib"
Unset:  CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, PORTAGE_RSYNC_EXTRA_OPTS