Please add "~amd64" to the KEYWORDS for x11-themes/gtk-qt-engine-0.5. It compiles without any problems and works fine. Reproducible: Always Steps to Reproduce: Portage 2.0.51-r2 (default-linux/amd64/2004.3, gcc-3.4.2, glibc-2.3.4.20040808-r1, 2.6.9-gentoo-r1 x86_64) ================================================================= System uname: 2.6.9-gentoo-r1 x86_64 AMD Athlon(tm) 64 Processor 3000+ Gentoo Base System version 1.4.16 Autoconf: sys-devel/autoconf-2.59-r5 Automake: sys-devel/automake-1.8.5-r1 Binutils: sys-devel/binutils-2.15.90.0.1.1-r3 Headers: sys-kernel/linux26-headers-2.6.8.1-r1 Libtools: sys-devel/libtool-1.5.2-r5 ACCEPT_KEYWORDS="amd64" AUTOCLEAN="yes" CFLAGS="-march=k8 -O2 -pipe -fomit-frame-pointer" CHOST="x86_64-pc-linux-gnu" COMPILER="" CONFIG_PROTECT="/etc /usr/X11R6/lib/X11/xkb /usr/kde/2/share/config /usr/kde/3.3/env /usr/kde/3.3/share/config /usr/kde/3.3/shutdown /usr/kde/3/share/config /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-march=k8 -O2 -pipe -fomit-frame-pointer" DISTDIR="/usr/portage/distfiles" FEATURES="autoaddcvs ccache distlocks sandbox" GENTOO_MIRRORS="ftp://sunsite.informatik.rwth-aachen.de/pub/Linux/gentoo/ ftp://mirrors.sec.informatik.tu-darmstadt.de/gentoo/ ftp://gentoo.inode.at/source/ http://linux.rz.ruhr-uni-bochum.de/download/gentoo-mirror/ http://gentoo.tiscali.nl/gentoo/" MAKEOPTS="-j2" 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 acpi alsa arts artswrappersuid berkdb bitmap-fonts cdr crypt cups dvd encode esd f77 fam flac foomaticdb gdbm gif gimpprint gpm gstreamer gtk gtk2 imagemagick imlibipv6 java jp2 jpeg kde lzw lzw-tiff mad mpeg multilib ncurses nls oggvorbis opengl oss pam pda perl png ppds python qt readline samba sdl slang spell ssl tcpd tiff truetype usb userlocales xml2 xpm xrandr xv zlib linguas_de"
Tested fine for me, added ~amd64 to keywords of x11-themes/gtk-qt-engine-0.6 (new version).