While trying to emerge glibc-2.4-r4, i'm getting the following error: x86_64-pc-linux-gnu-gcc ../sysdeps/generic/initfini.c -c -std=gnu99 -O2 -Wall -Winline -Wwrite-strings -fmerge-all-constants -march=k8 -pipe -Wstrict-prototypes -mpreferred-stack-boundary=4 -g0 -fPIC -fno-inline-functions -fno-unit-at-a-time -march=i386 -mtune=i386 -I../include -I/var/tmp/portage/glibc-2.4-r4/work/build-x86-x86_64-pc-linux-gnu-nptl/csu -I/var/tmp/portage/glibc-2.4-r4/work/build-x86-x86_64-pc-linux-gnu-nptl -I../sysdeps/i386/elf -I../nptl/sysdeps/unix/sysv/linux/i386/i686 -I../nptl/sysdeps/unix/sysv/linux/i386 -I../sysdeps/unix/sysv/linux/i386 -I../ports/sysdeps/unix/sysv/linux -I../nptl/sysdeps/unix/sysv/linux -I../nptl/sysdeps/pthread -I../sysdeps/pthread -I../sysdeps/unix/sysv/linux -I../sysdeps/gnu -I../sysdeps/unix/common -I../sysdeps/unix/mman -I../sysdeps/unix/inet -I../ports/sysdeps/unix/sysv/i386 -I../sysdeps/unix/sysv/i386 -I../ports/sysdeps/unix/sysv -I../nptl/sysdeps/unix/sysv -I../sysdeps/unix/sysv -I../sysdeps/unix/i386 -I../ports/sysdeps/unix -I../nptl/sysdeps/unix -I../sysdeps/unix -I../sysdeps/posix -I../sysdeps/i386/i686/fpu -I../nptl/sysdeps/i386/i686 -I../sysdeps/i386/i686 -I../sysdeps/i386/i486 -I../nptl/sysdeps/i386/i486 -I../sysdeps/i386/fpu -I../nptl/sysdeps/i386 -I../sysdeps/i386 -I../sysdeps/wordsize-32 -I../sysdeps/ieee754/ldbl-96 -I../sysdeps/ieee754/dbl-64 -I../sysdeps/ieee754/flt-32 -I../sysdeps/ieee754 -I../sysdeps/generic/elf -I../sysdeps/generic -I../ports -I../nptl -I.. -I../libio -I. -nostdinc -isystem /usr/lib/gcc/x86_64-pc-linux-gnu/3.4.6/include -isystem /usr/include -D_LIBC_REENTRANT -include ../include/libc-symbols.h -DHAVE_INITFINI -S -g0 -fPIC -fno-inline-functions -fno-unit-at-a-time -march=i386 -mtune=i386 -finhibit-size-directive \ -fno-exceptions -o /var/tmp/portage/glibc-2.4-r4/work/build-x86-x86_64-pc-linux-gnu-nptl/csu/initfini.s ../sysdeps/generic/initfini.c:1: error: CPU you selected does not support x86-64 instruction set ../sysdeps/generic/initfini.c:1: error: CPU you selected does not support x86-64 instruction set <...> !!! ERROR: sys-libs/glibc-2.4-r4 failed. Call stack: ebuild.sh, line 1546: Called dyn_compile ebuild.sh, line 937: Called src_compile glibc-2.4-r4.ebuild, line 1158: Called src_compile glibc-2.4-r4.ebuild, line 1169: Called toolchain-glibc_src_compile glibc-2.4-r4.ebuild, line 255: Called die !!! make for x86 failed As noted PaulBredbury at forum, there's '-march=i386 -mtune=i386' lines in the compiler options. However, my emerge --info doesn't contain any i386 options: Gentoo Base System version 1.12.5 Portage 2.1.2_pre2-r3 (default-linux/amd64/2005.1, gcc-3.4.6, glibc-2.4-r3, 2.6.15-gentoo x86_64) ================================================================= System uname: 2.6.15-gentoo x86_64 AMD Athlon(tm) 64 Processor 3000+ Last Sync: Wed, 04 Oct 2006 21:20:01 +0000 app-admin/eselect-compiler: [Not Present] dev-java/java-config: 1.3.0-r2, 2.0.30 dev-lang/python: 2.3.5, 2.4.3-r4 dev-python/pycrypto: 2.0.1-r5 dev-util/ccache: [Not Present] 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: 2.6.17-r1 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/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/env.d/java/ /etc/gconf /etc/java-config/vms/ /etc/revdep-rebuild /etc/terminfo /etc/texmf/web2c" CXXFLAGS="-march=k8 -O2 -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig distlocks metadata-transfer sandbox sfperms strict" GENTOO_MIRRORS="ftp://ftp.belnet.be/mirror/rsync.gentoo.org/gentoo/ http://ftp.snt.utwente.nl/pub/os/linux/gentoo http://mirror.gentoo.no/" LANG="en_US.UTF-8" LINGUAS="en ru" MAKEOPTS="-j2" 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" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.uk.gentoo.org/gentoo-portage" USE="X alsa amd64 ansi avi berkdb bitmap-fonts cli crypt cups dlloader dri dvd eds elibc_glibc emboss encode foomaticdb fortran gd gif gnutls gpm gstreamer gtk gtk2 hal ieee1394 imlib input_devices_keyboard input_devices_mouse ipv6 isdnlog jpeg kde kernel_linux linguas_en linguas_ru lzw lzw-tiff mono mozilla mp3 mpeg mysql ncurses nls nptl nptlonly nsplugin nvidia ogg opengl pam pcre pdflib perl plotutils png pppd python qt3 qt4 quicktime readline reflection sdl session spell spl ssl tcltk tcpd threads tiff truetype truetype-fonts type1-fonts unicode usb userland_GNU video_cards_fbdev video_cards_nvidia video_cards_vesa vorbis xorg xpm xv zlib" Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, LDFLAGS, PORTAGE_RSYNC_EXTRA_OPTS
*** This bug has been marked as a duplicate of 149586 ***
