Full info here http://forums.gentoo.org/viewtopic-t-510524-highlight-.html. basically revdep-rebuild fails to buold control-center-1.4.0.5-r3 while control-center-2.16.1 is already properly merged. # emerge --info Portage 2.1.2_pre3-r8 (default-linux/x86/2006.0, gcc-3.4.4, glibc-2.5-r0, 2.6.17-gentoo-r8 i686) ================================================================= System uname: 2.6.17-gentoo-r8 i686 Intel(R) Pentium(R) 4 CPU 2.80GHz Gentoo Base System version 1.12.5 Last Sync: Wed, 25 Oct 2006 14:30:01 +0000 app-admin/eselect-compiler: [Not Present] dev-java/java-config: [Not Present] dev-lang/python: 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, 1.10 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="x86 ~x86" AUTOCLEAN="yes" CBUILD="i686-pc-linux-gnu" CFLAGS="-march=i686 -O2 -pipe" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/3.4/env /usr/kde/3.4/share/config /usr/kde/3.4/shutdown /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/gconf /etc/revdep-rebuild /etc/terminfo" CXXFLAGS="-march=i686 -O2 -pipe" DISTDIR="/usr/portage/distfiles" EMERGE_DEFAULT_OPTS="--nocolor" FEATURES="autoconfig distlocks metadata-transfer sandbox sfperms strict" GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/linux/distributions/gentoo" MAKEOPTS="" 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" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="X alsa apache2 apm arts audiofile avi berkdb bitmap-fonts bzip2 cdr cli cracklib crypt ctype cups dba dlloader dri dvdr eds elibc_glibc emboss encode esd ethereal exif expat fam fastbuild foomaticdb force-cgi-redirect fortran ftp gd gdbm gif glut gmp gnome gpm gstreamer gtk gtk2 gtkhtml guile idn imlib input_devices_keyboard input_devices_mouse input_devices_synaptics ipv6 isdnlog jpeg kde kernel_linux lcms libg++ libwww mad memlimit mikmod mng motif mozilla mp3 mpeg ncurses nls nptl nptlonly ogg opengl oss pam pcre pdf pdflib perl png posix pppd python qt qt3 qt4 quicktime readline reflection samba sdl session simplexml slang soap sockets spell spl ssl tcltk tcpd tiff tokenizer truetype truetype-fonts type1-fonts udev userland_GNU video_cards_fbdev video_cards_i810 video_cards_vesa vorbis x86 xml xml2 xorg xsl xv zlib" Unset: CTARGET, INSTALL_MASK, LANG, LC_ALL, LDFLAGS, LINGUAS, PORTAGE_RSYNC_EXTRA_OPTS, PORTDIR_OVERLAY
Again, for details see the forum post, but the issue has been resolved