Agreed with comment #6, all works perfectly here on amd64:
Portage 2.1.4.4 (default-linux/amd64/2007.0/desktop, gcc-4.1.2, glibc-2.6.1-r0,
2.6.23-gentoo-r9 x86_64)
=================================================================
System uname: 2.6.23-gentoo-r9 x86_64 AMD Athlon(tm) 64 Processor 3400+
Timestamp of tree: Fri, 07 Mar 2008 01:47:01 +0000
ccache version 2.4 [enabled]
app-shells/bash: 3.2_p17-r1
dev-java/java-config: 1.3.7, 2.1.4
dev-lang/python: 2.4.4-r9
dev-python/pycrypto: 2.0.1-r6
dev-util/ccache: 2.4-r7
sys-apps/baselayout: 1.12.11.1
sys-apps/sandbox: 1.2.18.1-r2
sys-devel/autoconf: 2.13, 2.61-r1
sys-devel/automake: 1.5, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10
sys-devel/binutils: 2.18-r1
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"
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/fonts/fonts.conf
/etc/gconf /etc/revdep-rebuild /etc/splash /etc/terminfo /etc/udev/rules.d"
CXXFLAGS="-march=athlon64 -O2 -pipe"
DISTDIR="/distfiles"
FEATURES="buildpkg ccache distlocks metadata-transfer multilib-strict nostrip
parallel-fetch sandbox sfperms strict test unmerge-orphans userfetch userpriv"
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 --stats --timeout=180 --exclude=/distfiles
--exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/portage/local/enlightenment /overlay"
SYNC="rsync://kv80/gentoo-portage"
USE="X acl acpi aim alsa amd64 arts bash-completion berkdb branding cairo cli
cracklib crypt cups dbus dri dvd dvdr dvdread eds emboss encode esd evo fam
firefox fortran gdbm gif gpm gstreamer hal iconv imap ipv6 isdnlog jpeg kde
kerberos mad midi mikmod mmx mp3 mpeg mudflap mysql mysqli ncurses nls nptl
nptlonly nvidia ogg opengl openmp oss pam pcre pdf perl png pppd python qt qt3
qt3support qt4 quicktime readline reflection sdl session spell spl sqlite3 sse
sse2 ssl svg tcpd tiff truetype unicode vim vim-syntax vorbis xine xml xorg xv
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 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 autoindex cache 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" USERLAND="GNU" VIDEO_CARDS="nvidia"
Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL,
LDFLAGS, LINGUAS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS,
PORTAGE_RSYNC_EXTRA_OPTS
