Steps to reproduce 1. Unmask 2. Emerge Portage 2.0.54 (default-linux/amd64/2006.0, gcc-3.4.4, glibc-2.3.5-r2, 2.6.15-gentoo-r7 x86_64) ================================================================= System uname: 2.6.15-gentoo-r7 x86_64 Intel(R) Xeon(TM) CPU 3.00GHz Gentoo Base System version 1.6.14 dev-lang/python: 2.4.2 sys-apps/sandbox: 1.2.12 sys-devel/autoconf: 2.13, 2.59-r6 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 sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.11-r2 ACCEPT_KEYWORDS="amd64" AUTOCLEAN="yes" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=nocona -fomit-frame-pointer -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=nocona -fomit-frame-pointer -O2 -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig distlocks sandbox sfperms strict" GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/linux/distributions/gentoo" MAKEOPTS="-j5" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="amd64 apache2 avi berkdb bitmap-fonts bzip2 cli crypt ctype cups dba dri eds emboss encode expat fastbuild foomaticdb force-cgi-redirect fortran ftp gd gif gnome gpm gstreamer gtk gtk2 imlib ipv6 isdnlog kde lzw lzw-tiff memlimit mp3 mpeg ncurses nls nptl pam pcre pdflib perl posix pppd python qt quicktime readline sdl session simplexml soap sockets spell spl ssl tcpd tokenizer truetype truetype-fonts type1-fonts udev usb xml xpm xsl xv zlib userland_GNU kernel_linux elibc_glibc" Unset: ASFLAGS, CTARGET, INSTALL_MASK, LANG, LC_ALL, LDFLAGS, LINGUAS, PORTDIR_OVERLAY
It's already keyworded ~amd64.