psh-1.8-r1 Tworks for me:
Portage 2.0.51.19 (default-linux/amd64/2005.0, gcc-3.4.3, glibc-2.3.4.20041102-r0, 2.6.11-gentoo-r2 x86_64)
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System uname: 2.6.11-gentoo-r2 x86_64 AMD Athlon(tm) 64 Processor 3000+
Gentoo Base System version 1.4.16
Python: dev-lang/python-2.3.4-r1 [2.3.4 (#1, Mar 12 2005, 22:05:44)]
dev-lang/python: 2.3.4-r1
sys-devel/autoconf: 2.13, 2.59-r6
sys-devel/automake: 1.5, 1.8.5-r3, 1.6.3, 1.7.9-r1, 1.4_p6, 1.9.4
sys-devel/binutils: 2.15.92.0.2-r1
sys-devel/libtool: 1.5.10-r4
virtual/os-headers: 2.6.8.1-r4
ACCEPT_KEYWORDS="amd64"
AUTOCLEAN="yes"
CFLAGS="-march=x86-64 -O2 -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3/share/config /usr/lib/X11/xkb /usr/share/config /var/qmail/control"
CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d"
CXXFLAGS=""
DISTDIR="/usr/portage/distfiles"
FEATURES="autoaddcvs autoconfig ccache distlocks sandbox"
GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/Linux/distributions/gentoo"
MAKEOPTS="-j2"
PKGDIR="/usr/portage/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
SYNC="rsync://rsync.fprintf.net/gentoo-portage"
USE="amd64 X acpi alsa apache2 avi berkdb bitmap-fonts cdr crypt cscope cups db2 dga dvd dvdr encode esd ethereal fam flac font-server foomaticdb gd gdbm gif gnome gnutls gpm gstreamer gtk gtk2 guile hal imagemagick imap imlib ipv6 jabber jp2 jpeg ldap libclamav libg++ libwww lzo lzw lzw-tiff mad maildir matroska mikmod mime mmap mng mp3 mpeg mpi mysql ncurses nls nptl offensive oggvorbis opengl oscar oss pam pdflib perl png python quicktime readline real rtc samba sasl sdl sharedmem soap speex spell ssl svg tcpd theora tiff truetype truetype-fonts type1-fonts unicode usb userlocales wmf xface xinerama xml2 xpm xrandr xsl xv zlib"
Unset: ASFLAGS, CBUILD, CTARGET, LANG, LC_ALL, LDFLAGS, PORTDIR_OVERLAY
