Works like a charm over here on amd64 :)
Portage 2.1.2.2 (default-linux/amd64/2006.1/no-multilib, gcc-4.1.1,
glibc-2.5-r2, 2.6.20-gentoo-r3 x86_64)
=================================================================
System uname: 2.6.20-gentoo-r3 x86_64 AMD Turion(tm) 64 Mobile Technology MT-28
Gentoo Base System release 1.12.9
Timestamp of tree: Sun, 06 May 2007 11:50:01 +0000
distcc 2.18.3 x86_64-pc-linux-gnu (protocols 1 and 2) (default port 3632)
[enabled]
dev-java/java-config: 1.3.7, 2.0.31-r5
dev-lang/python: 2.4.3-r4
dev-python/pycrypto: 2.0.1-r5
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="amd64"
AUTOCLEAN="yes"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=athlon64 -msse3 -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/gconf
/etc/java-config/vms/ /etc/revdep-rebuild /etc/terminfo /etc/texmf/web2c"
CXXFLAGS="-march=athlon64 -msse3 -O2 -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="collision-protect distcc distlocks metadata-transfer multilib-strict
sandbox sfperms strict test"
GENTOO_MIRRORS="ftp://gentoo.tiscali.nl/pub/mirror/gentoo/"
LINGUAS="en nl"
MAKEOPTS="-j4"
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/portage-overlay"
SYNC="rsync://rsync.nl.gentoo.org/gentoo-portage"
USE="X alsa amd64 apache2 bitmap-fonts bzip2 cli cracklib crypt cvs dvd dvdr
exif flac gdbm gif gstreamer highlight history iconv imagemagick ipod isdnlog
jpeg jpeg2k kde latex libg++ md5sum midi mp3 mplayer music ncurses nls nomotif
nptl nptlonly ogg opengl oss pcre pdf perl png ppds pppd python qt readline
reflection samba session spl ssl tcpd test tetex truetype-fonts type1-fonts
unicode vorbis xine xml xml2 xorg zlib" ALSA_CARDS="intel8x0"
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 mouse synaptics"
KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001
mtxorb ncurses text" LINGUAS="en nl" USERLAND="GNU" VIDEO_CARDS="sis"
Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, LDFLAGS,
PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS