=sys-libs/glibc-2.3.6-r1 builds and works on amd64. You can add ~amd64 keyword. :) Reproducible: Always Steps to Reproduce: 1. echo '=sys-libs/glibc-2.3.6-r1 -*' >> /etc/portage/package.keywords 2. emerge glibc Actual Results: 1. echo '=sys-libs/glibc-2.3.6-r1 -*' >> /etc/portage/package.keywords 2. emerge glibc Expected Results: 1. echo '=sys-libs/glibc-2.3.6-r1 ~amd64' >> /etc/portage/package.keywords 2. emerge glibc Portage 2.0.51.22-r2 (default-linux/amd64/2005.1, gcc-3.4.4, glibc-2.3.6-r1, 2.6.14-gentoo-r2-david x86_64) ================================================================= System uname: 2.6.14-gentoo-r2-david x86_64 AMD Athlon(tm) 64 Processor 3000+ Gentoo Base System version 1.6.13 dev-lang/python: 2.3.5-r2, 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: 1.5.20 virtual/os-headers: 2.6.11-r2 ACCEPT_KEYWORDS="amd64" AUTOCLEAN="yes" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -march=k8 -fomit-frame-pointer -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/kde/3/share/config /usr/share/X11/xkb /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-O2 -march=k8 -fomit-frame-pointer -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig ccache distlocks fixpackages sandbox sfperms strict" GENTOO_MIRRORS="http://gentoo.ynet.sk/pub http://ftp.easynet.nl/mirror/gentoo/ http://ftp.du.se/pub/os/gentoo http://gentoo.osuosl.org/" LANG="cs_CZ.UTF-8" LC_ALL="cs_CZ.UTF-8" LINGUAS="cs" MAKEOPTS="-j3" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="amd64 X aac aalib acpi adns alsa apache2 apm audiofile avi bash-completion berkdb bitmap-fonts bonobo bzip2 caps cdparanoia cdr crypt crzpt cups curl curlwrappers dbus dga dio directfb divx4linux dts dvd dvdr dvdread emboss emul-linux-86 encode exif fam fbcon ffmpeg flac flash foomaticdb fortran ftp gd gdbm ggi gif gpm gstreamer gtk gtk2 hal icq id3 id3v2 imagemagick imlib innodb ipv6 jabber javascript jpeg kde kdeenablefinal lcms ldap libcaca libwww lm_sensors lzw lzw-tiff mad matroska mbox mhash mikmod mime ming mng mp3 mpeg mplayer mysql mysqli ncurses nis nls nptl nptlonly nvidia ogg oggvorbis openal opengl osc oscar pam pcntl pcre pdflib perl php pic png posix ppds python qt quicktime readline real recode sdl session skey slang sockets socks5 sox speex sqlite ssl svg symlink tcpd theora threads tiff truetype truetype-fonts type1-fonts udev unicode usb userlocales v4l vcd vorbis wmf xine xml xml2 xpm xv xvid zlib linguas_cs userland_GNU kernel_linux elibc_glibc" Unset: ASFLAGS, CTARGET, LDFLAGS
*** This bug has been marked as a duplicate of 112856 ***