Emerged Layman which has not been marked for amd64 yet and it runs just fine.
Was able to install it and then use it to add the xgl overlays into my system
without error.
Gentoo Base System version 1.12.0_pre19
Portage 2.1_pre10-r2 (default-linux/amd64/2006.0, gcc-3.4.6, glibc-2.3.5-r2,
2.6.16-gentoo-r6 x86_64)
=================================================================
System uname: 2.6.16-gentoo-r6 x86_64 AMD Athlon(tm) 64 Processor 2800+
dev-lang/python: 2.4.3
dev-util/ccache: [Not Present]
dev-util/confcache: [Not Present]
sys-apps/sandbox: 1.2.18
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-r2
sys-devel/binutils: 2.16.1-r2
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=k8 -O2 -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3/share/config
/usr/share/config /var/qmail/control"
CONFIG_PROTECT_MASK="/etc/eselect/compiler /etc/gconf /etc/terminfo /etc/env.d"
CXXFLAGS="-march=k8 -O2 -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoconfig distlocks metadata-transfer sandbox sfperms strict"
GENTOO_MIRRORS="http://gentoo.osuosl.org/ "
PKGDIR="/usr/portage/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/portage/local/layman/portage-xgl"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="amd64 X a52 aac aim alsa apache2 apm arts avi bash-completion berkdb
bitmap-fonts bluetooth bzip2 calendars cli crypt cups curl dbus dri dvd eds
emboss emul-linux-x86 encode ethereal fastcgi ffmpeg flac foomaticdb fortran
ftp gif gnome gpm gstreamer gtk gtk2 hal icq ieee1394 imlib ipv6 isdnlog jpeg
kde kdeenablefinal lm_Sensors lzw lzw-tiff mad mime ming mp3 mpeg msn mysql
ncurses nls nptl ntpl ntplonly ogg oggvorbis openal opengl oss pam pcre pdf
pdflib perl png pppd python qt quicktime readline reflection ruby samba sdl
session speex spell spl ssl svg tcpd theora tiff truetype-fonts type1-fonts usb
vorbis wifi xorg xpm xv yahoo zlib elibc_glibc kernel_linux userland_GNU"
Unset: ASFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL,
LDFLAGS, LINGUAS, MAKEOPTS
