Working nice and clean on my AMD64 machine.
emerge info:
---
Portage 2.1.4.5 (default/linux/amd64/2008.0/no-multilib, gcc-4.1.2,
glibc-2.6.1-r0, 2.6.25-gentoo-r7 x86_64)
=================================================================
System uname: 2.6.25-gentoo-r7 x86_64 AMD Sempron(tm) Processor 2800+
Timestamp of tree: Thu, 16 Oct 2008 01:17:01 +0000
distcc 2.18.3 x86_64-pc-linux-gnu (protocols 1 and 2) (default port 3632)
[disabled]
app-shells/bash: 3.2_p33
dev-lang/python: 2.4.4-r13, 2.5.2-r7
dev-python/pycrypto: 2.0.1-r6
sys-apps/baselayout: 1.12.11.1
sys-apps/sandbox: 1.2.18.1-r2
sys-devel/autoconf: 2.13, 2.61-r2
sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2,
1.10.1-r1
sys-devel/binutils: 2.18-r3
sys-devel/gcc-config: 1.4.0-r4
sys-devel/libtool: 1.5.26
virtual/os-headers: 2.6.23-r3
ACCEPT_KEYWORDS="amd64"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=athlon64 -O2 -pipe -fomit-frame-pointer"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d
/etc/eselect/postgresql /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/udev/rules.d"
CXXFLAGS="-march=athlon64 -O2 -pipe -fomit-frame-pointer"
DISTDIR="/usr/portage/distfiles"
FEATURES="collision-protect distlocks metadata-transfer multilib-strict sandbox
sfperms strict unmerge-orphans userfetch"
GENTOO_MIRRORS="ftp://gentoo.tiscali.nl/pub/mirror/gentoo/"
LDFLAGS="-Wl,-O1"
LINGUAS="en"
MAKEOPTS="-j2"
PKGDIR="/usr/portage/packages"
PORTAGE_COMPRESS=""
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress
--force --whole-file --delete --stats --timeout=180 --exclude=/distfiles
--exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/overlay"
SYNC="rsync://rsync.nl.gentoo.org/gentoo-portage"
USE="3dnow amd64 apache2 authdaemond bzip2 calendar cli cracklib crypt dri gdbm
geos gpm iconv imap isdnlog jpeg jpeg2k libwww logrotate maildir midi mmx
mudflap ncurses nls nptl nptlonly ogg openmp pcre perl png pppd prcre proj
python readline reflection session simplexml spell spl sse sse2 ssl svg sysfs
syslogtcpd unicode vda vhosts webdav-neon winbind xml xorg zlib"
ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x
ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3
trident usb-audio via82xx via82xx-modem ymfpci" ALSA_PCM_PLUGINS="adpcm alaw
asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa
lfloat linear meter mmap_emul mulaw multi null plug rate route share shm
softvol" APACHE2_MODULES="actions alias auth_basic authn_alias authn_anon
authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile
authz_host authz_owner authz_user autoindexcache dav dav_fs dav_lock deflate
dir disk_cache env expires ext_filter file_cache filter headers include info
log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling
status unique_id userdir usertrack vhost_alias" ELIBC="glibc"
INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz
cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="en"
USERLAND="GNU" VIDEO_CARDS="fbdev glint i810 mach64 mga neomagic nv r128 radeon
savage sis tdfx trident vesa vga via vmware voodoo"
Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, LANG,
LC_ALL, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
