Something

Gentoo ndowens # emerge --info 
>>> cfg-update-1.8.2-r1: Checksum index is up-to-date ...
Portage 2.1.2.7 (default-linux/x86/2007.0/desktop, gcc-4.1.2, glibc-2.5-r2, 2.6.
20-gentoo-r8 i686)
=================================================================
System uname: 2.6.20-gentoo-r8 i686 AMD Duron(tm) processor
Gentoo Base System release 1.12.9
Timestamp of tree: Wed, 30 May 2007 06:30:01 +0000
ccache version 2.4 [disabled]
dev-java/java-config: 1.3.7, 2.0.31-r5
dev-lang/python:     2.4.4-r4
dev-python/pycrypto: 2.0.1-r5
dev-util/ccache:     2.4-r7
sys-apps/sandbox:    1.2.17
sys-devel/autoconf:  2.13, 2.61
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:  2.16.1-r3
sys-devel/gcc-config: 1.3.16
sys-devel/libtool:   1.5.22
virtual/os-headers:  2.6.17-r2
ACCEPT_KEYWORDS="x86"
AUTOCLEAN="yes"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-march=i686 -O2 -pipe"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shu
tdown /usr/share/X11/xkb"
CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/gconf /etc/java-config/vms
/ /etc/revdep-rebuild /etc/terminfo"
CXXFLAGS="-march=i686 -O2 -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="distlocks metadata-transfer sandbox sfperms strict"
GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/linux/
distributions/gentoo"
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=/di
stfiles --exclude=/local --exclude=/packages --filter=H_**/files/digest-*"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="X acl acpi alsa avi berkdb bitmap-fonts cairo cdr cli cracklib crypt cups d
bus dlloader dri dvdr dvdread eds emboss encode esd evo fam firefox fortran gdbm
 gif gnome gpm gtk hal iconv ipv6 isdnlog jpeg kerberos ldap libg++ mad midi mik
mod mp3 mpeg msn mudflap ncurses nls nptl nptlonly ogg opengl openmp oss pam pcr
e pdf perl png ppds pppd qt3 qt3support qt4 quicktime readline reflection sdl se
ssion spell spl ssl svg tcpd tiff truetype truetype-fonts type1-fonts udev unico
de usb vorbis win32codecs x86 xml xorg xv zlib" ALSA_CARDS="ali5451 als4000 atii
xp atiixp-modem bt87x ca0106 cmipci emu10k1 emu10k1x ens1370 ens1371 es1938 es19
68 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx
-modem ymfpci" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty e
xtplug file hooks iec958 ioplug ladspa lfloat linear meter mulaw multi null plug
 rate route share shm softvol" ELIBC="glibc" INPUT_DEVICES="keyboard mouse evdev
" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 
mtxorb ncurses text" USERLAND="GNU" VIDEO_CARDS="apm ark chips cirrus cyrix dumm
y fbdev glint i128 i740 i810 imstt mach64 mga neomagic nsc nv r128 radeon rendit
ion s3 s3virge savage siliconmotion sis sisusb tdfx tga trident tseng v4l vesa v
ga via vmware voodoo"
Unset:  CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, LDFLAGS, LINGU
AS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, PORTDIR_
OVERLAY