emerges fine and works on amd64
Portage 2.1.2.2 (default-linux/amd64/2006.1/desktop, gcc-4.1.1, glibc-2.5-r0,
2.6.20-beyond2 x86_64)
=================================================================
System uname: 2.6.20-beyond2 x86_64 AMD Athlon(tm) 64 X2 Dual Core Processor
4600+
Gentoo Base System release 1.12.9
Timestamp of tree: Sun, 25 Mar 2007 16:20:01 +0000
ccache version 2.4 [enabled]
dev-java/java-config: 1.3.7, 2.0.31
dev-lang/python: 2.4.3-r4
dev-python/pycrypto: 2.0.1-r5
dev-util/ccache: 2.4-r6
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: 1.3.14
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=k8 -O2 -pipe -msse3"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/X11/xkb"
CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/gconf
/etc/java-config/vms/ /etc/php/apache1-php5/ext-active/
/etc/php/apache2-php5/ext-active/ /etc/php/cgi-php5/ext-active/
/etc/php/cli-php5/ext-active/ /etc/revdep-rebuild /etc/splash /etc/terminfo"
CXXFLAGS="-march=k8 -O2 -pipe -msse3"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoconfig buildsyspkg ccache collision-protect distlocks
metadata-transfer multilib-strict parallel-fetch sandbox sfperms strict test"
GENTOO_MIRRORS="ftp://linux.rz.ruhr-uni-bochum.de/gentoo-mirror/
ftp://ftp.uni-erlangen.de/pub/mirrors/gentoo
ftp://ftp.join.uni-muenster.de/pub/linux/distributions/gentoo
ftp://ftp.wh2.tu-dresden.de/pub/mirrors/gentoo
ftp://ftp.join.uni-muenster.de/pub/linux/distributions/gentoo
ftp://ftp-stud.fht-esslingen.de/pub/Mirrors/gentoo/
ftp://ftp.gentoo.mesh-solutions.com/gentoo/
ftp://pandemonium.tiscali.de/pub/gentoo/ "
LANG="en_US.ISO-8859-15"
LC_ALL="en_US.ISO-8859-15"
MAKEOPTS="-j3"
PKGDIR="/usr/portage/packages"
PORTAGE_RSYNC_EXTRA_OPTS="--exclude-from=/etc/portage/rsync_excludes"
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/local/portage/overlay"
SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage"
USE="X a52 aac acpi alsa amd64 amr audiofile berkdb bitmap-fonts bzip2 cairo
cdinstall cdr cli cracklib crypt cups dbus dri dts dvd dvdr dvdread eds emboss
encode fam firefox fortran gdbm gif gpm gstreamer gtk gtk2 hal iconv jpeg ldap
libg++ lirc logrotate mad midi mikmod mp3 mpeg ncurses nls nptl nptlonly
offensive ogg opengl pam pcre php png ppds pppd quicktime readline reflection
sdl session smp spl ssl svg symlink tcpd test tiff truetype truetype-fonts
type1-fonts unicode v4l vim vorbis x264 xinerama xorg xv xvid zlib"
ALSA_CARDS="emu10k1" 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="evdev
keyboard" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216
lcdm001 mtxorb ncurses text" LIRC_DEVICES="inputlirc" USERLAND="GNU"
VIDEO_CARDS="nvidia"
Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LDFLAGS, LINGUAS,
PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS