That's it... ...please add keyword.
I can confirm this. There were some glitches (warning about variable size, the mounted files had zero permissions) but it compiled and ran out of the box, just by adding the ~amd64 keyword to the ebuild.
Tested on amd64 (I#ve been using it for a couple of days now), working fine. emerge --info Portage 2.1.1_pre5-r3 (default-linux/amd64/2006.1/desktop, gcc-4.1.1, glibc-2.4-r3, 2.6.17-suspend2-r4Dudebox-Edition x86_64) ================================================================= System uname: 2.6.17-suspend2-r4Dudebox-Edition x86_64 AMD Athlon(tm) 64 Processor 3200+ Gentoo Base System version 1.12.4 Last Sync: Tue, 29 Aug 2006 13:20:01 +0000 distcc 2.18.3 x86_64-pc-linux-gnu (protocols 1 and 2) (default port 3632) [enabled] ccache version 2.4 [enabled] app-admin/eselect-compiler: [Not Present] dev-lang/python: 2.4.3-r1 dev-python/pycrypto: 2.0.1-r5 dev-util/ccache: 2.4-r2 dev-util/confcache: [Not Present] sys-apps/sandbox: 1.2.18.1 sys-devel/autoconf: 2.13, 2.60 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: 2.17 sys-devel/gcc-config: 1.3.13-r3 sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.16 ACCEPT_KEYWORDS="amd64 ~amd64" AUTOCLEAN="yes" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=k8 -msse3 -Os -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/gconf /etc/revdep-rebuild /etc/terminfo" CXXFLAGS="-march=k8 -msse3 -Os -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig ccache collision-protect distcc distlocks metadata-transfer multilib-strict parallel-fetch sandbox sfperms strict test userfetch userpriv usersandbox" GENTOO_MIRRORS="ftp://ftp.wh2.tu-dresden.de/pub/mirrors/gentoo ftp://linux.rz.ruhr-uni-bochum.de/gentoo-mirror/ ftp:///ftp-stud.fht-esslingen.de/pub/Mirrors/gentoo/" LDFLAGS="-Wl,-O1" LINGUAS="" 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'" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" SYNC="rsync://server/gentoo-portage" USE="amd64 X alsa avi berkdb bitmap-fonts cairo cdr cli crypt cups dbus dlloader dri dvd dvdr eds elibc_glibc emboss encode esd fam firefox fortran gdbm gif gpm gstreamer gtk gtk2 hal input_devices_keyboard input_devices_mouse isdnlog jpeg kde kdeenablefinal kdehiddenvisibility kernel_linux libg++ mad mikmod mp3 mpeg ncurses nls nptl nptlonly ogg oss pam pcre pdflib perl png ppds pppd python qt3 qt4 quicktime readline reflection sdl session spell spl ssl tcpd truetype truetype-fonts type1-fonts udev unicode userland_GNU video_cards_radeon vorbis xml xorg xv zlib" Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, PORTAGE_RSYNC_EXTRA_OPTS, PORTDIR_OVERLAY
aye. thanks for reporting!