mp3gain 1.4.6 can safely get the amd64 keywords darktama@disoft-dc ~ $ emerge info Portage 2.0.51.22-r2 (default-linux/amd64/2005.1, gcc-3.4.4, glibc-2.3.5-r1, 2.6.13-rc6 x86_64) ================================================================= System uname: 2.6.13-rc6 x86_64 AMD Athlon(tm) 64 Processor 3500+ Gentoo Base System version 1.12.0_pre6 distcc 2.18.3 x86_64-pc-linux-gnu (protocols 1 and 2) (default port 3632) [disabled] ccache version 2.4 [enabled] dev-lang/python: 2.3.5, 2.4.1-r1 sys-apps/sandbox: 1.2.12 sys-devel/autoconf: 2.13, 2.59-r7 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6 sys-devel/binutils: 2.16.1 sys-devel/libtool: 1.5.18-r1 virtual/os-headers: 2.6.11-r2 ACCEPT_KEYWORDS="amd64 ~amd64" AUTOCLEAN="yes" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=athlon64 -O3 -pipe" 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/lib64/mozilla/defaults/pref /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-march=athlon64 -O3 -pipe" DISTDIR="/home/portage/distfiles" FEATURES="autoconfig buildpkg ccache distlocks multilib-strict sandbox sfperms strict" GENTOO_MIRRORS="ftp://ftp.iinet.net.au/pub/Gentoo/ http://mirror.pacific.net.au/linux/Gentoo/" LINGUAS="en de" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/home/portage" PORTDIR_OVERLAY="/usr/local/overlays/scratch /usr/local/overlays/modular-xorg" SYNC="rsync://rsync.au.gentoo.org/gentoo-portage" USE="amd64 X a52 aac aalib acl acpi alsa apache2 audiofile avi bash-completion berkdb bitmap-fonts bonobo bzlib cairo calendar cdparanoia cdr crypt cups curl dbus dlloader dri dvd dvdr dvdread eds encode esd exif expat fam fbcon ffmpeg flac foomaticdb fortran ftp gd gif glitz glut gnome gpm gstreamer gtk gtk2 guile hal imagemagick imlib inotify ipv6 ithreads jack java javascript jikes jpeg junit kde kerberos krb4 lcms ldap libwww lm_sensors lzw lzw-tiff mad mmap mng mono motif mozilla mp3 mpeg mpi msn mysql ncurses nls nocd nptl nptlonly nvidia offensive ogg oggvorbis openal opengl pam pdflib perl png python qt quicktime readline recode samba sasl sdl session speex spell sqlite ssl subversion sysvipc tcltk tcpd theora threads tiff truetype truetype-fonts type1 type1-fonts unicode usb userlocales vcd videos vorbis xine xinerama xml xml2 xmms xosd xpm xprint xsl xv xvid xvmc zlib linguas_en linguas_de userland_GNU kernel_linux elibc_glibc" Unset: ASFLAGS, CTARGET, LANG, LC_ALL, LDFLAGS
stable, thanks