It works on ~amd64. (Probably on stable amd64 but I have not tested it). emerge --info: Portage 2.0.51.21-r1 (default-linux/amd64/2005.0, gcc-4.0.1-beta20050507, glibc-2.3.5-r0, 2.6.12-rc4 x86_64) ================================================================= System uname: 2.6.12-rc4 x86_64 AMD Athlon(tm) 64 Processor 3200+ Gentoo Base System version 1.6.11 distcc 2.18.3 x86_64-pc-linux-gnu (protocols 1 and 2) (default port 3632) [disabled] dev-lang/python: 2.3.5 sys-apps/sandbox: 1.2.7 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, 1.9.5 sys-devel/binutils: 2.16.90.0.3 sys-devel/libtool: 1.5.16 virtual/os-headers: 2.6.11 ACCEPT_KEYWORDS="amd64 ~amd64" AUTOCLEAN="yes" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=athlon64 -O3 -pipe -funroll-loops -ffast-math -mfpmath=sse,387" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3.4/env /usr/kde/3.4/share/config /usr/kde/3.4/shutdown /usr/kde/3/share/config /usr/lib/X11/xkb /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/texmf/web2c /etc/env.d" CXXFLAGS="-march=athlon64 -O3 -pipe -funroll-loops -ffast-math -mfpmath=sse,387" DISTDIR="/share/distfiles" FEATURES="autoconfig buildsyspkg ccache distlocks fixpackages sandbox strict userpriv" GENTOO_MIRRORS="http://mir.zyrianes.net/gentoo/ http://www.ibiblio.org/pub/Linux/distributions/gentoo" LANG="fr_FR@euro" LC_ALL="fr_FR@euro" MAKEOPTS="-j5" 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 3dnowext X aac acpi alsa apache2 audiofile avi bash-completion berkdb bitmap-fonts bluetooth bzip2 cddb cdr crypt cups curl dba directfb dv dvd dvdr dvdread encode escreen esd faad fam fbdev ffmpeg flac font-server foomaticdb fortran gd gd-external gdbm gif gimp gnome gpm gtk gtk2 ide imagemagick imap imlib ipv6 irmc java jp2 jpeg jpeg2k latex libwww lirc lzw lzw-tiff mad maildir mp3 mpeg myqsl ncurses nls nptl nvidia offensive ogg oggvorbis opengl opie pam perl png ppds python readline real samba sms ssl stroke tcpd tetex threads tiff truetype truetype-fonts type1-fonts unicode usb userlocales v4l2 vorbis xine xml2 xpm xprint xrandr xv xvid zlib userland_GNU kernel_linux elibc_glibc" Unset: ASFLAGS, CTARGET, LDFLAGS, LINGUAS Reproducible: Always Steps to Reproduce: 1. 2. 3.
btw. you should remove -ffast-math from your compiler flags. It's unsafe and if something fails your bug reports won't be accepted.
committed in portage thanks, Alexis