Seems to work fine here
should be no problem adding ~amd64
Portage 2.1_pre3-r1 (default-linux/amd64/2005.1, gcc-3.4.5, glibc-2.3.6-r2,
2.6.14-gentoo-r3 x86_64)
=================================================================
System uname: 2.6.14-gentoo-r3 x86_64 Intel(R) Pentium(R) 4 CPU
3.40GHz
Gentoo Base System version 1.12.0_pre13
dev-lang/python: 2.4.2
sys-apps/sandbox: 1.2.17
sys-devel/autoconf: 2.13, 2.59-r7
sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r1
sys-devel/binutils: 2.16.1-r1
sys-devel/libtool: 1.5.22
virtual/os-headers: 2.6.11-r3
ACCEPT_KEYWORDS="amd64 ~amd64"
AUTOCLEAN="yes"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=nocona -O2 -fomit-frame-pointer -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3/share/config
/usr/lib/X11/xkb /usr/lib/mozilla-firefox/plugins
/usr/lib64/mozilla/defaults/pref /usr/share/config /var/qmail/control"
CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/texmf/web2c /etc/env.d"
CXXFLAGS="-march=nocona -O2 -fomit-frame-pointer -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoconfig distlocks multilib-strict sandbox sfperms strict"
GENTOO_MIRRORS="ftp://gentoo.risq.qc.ca http://gentoo.oregonstate.edu
http://distfiles.gentoo.org"
LDFLAGS="-Wl,-O1"
MAKEOPTS="-j2"
PKGDIR="/usr/portage/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/local/gentopia /usr/local/portage"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="amd64 X a52 aac acpi alsa audiofile avi bash-completion berkdb
bitmap-fonts bmp bzip2 c++ cairo canvas caps cdparanoia cdr crypt cscope css
cups curl dbus dts dv dvd dvdr dvdread dvi edl eds emboss encode esd evo exif
expat fam fat ffmpeg fftw flac foomaticdb gb gdbm gif gimp gimpprint glitz glut
gmail gmp gnome gnutls gpm gstreamer gtk gtk2 gzip hal hfs howl i8x0 idea idn
imagemagick imap imlib imlib2 jabber java jfs jpeg lcms libcaca libgda libwww
linuxkeys live lzo lzw lzw-tiff mad matroska mime mmap mng mod mono mozdevelop
mozilla mozsvg mp3 mpeg mplayer msn mythtv native nautilus ncurses network nfs
nis no-old-linux no_wxgtk1 noantlr nob nobcel nobeanutils nobsh
nocommonslogging nocommonsnet nojsch nolog4j nomotif nonfsv4 noplugin norhino
noxalan noxerces nptl nptlonly offensive ogg oggvorbis openal opengl pam pcre
pda pdflib perl plugin png ppds python quicktime readline real reiserfs rtc
ruby samba sdl sndfile speex spell sqlite ssl stream subversion svg tcltk tcpd
tetex tga theora tiff transcode truetype truetype-fonts type1-fonts udev
unicode usb userlocales v4l v4l2 vcd vorbis wmf wxwindows xanim xml xml2 xpm
xprint xscreensaver xv xvid xvmc zlib elibc_glibc kernel_linux
userland_GNU"Unset: ASFLAGS, CTARGET, LANG, LC_ALL, LINGUAS
