Most recent portage updates caused confcache to stop working properly. It outputs errors similar to those: /usr/bin/confcache --confcache-ignore /var/tmp/.distcc --confcache-dir /var/tmp/confcache ./configure --prefix=/usr --host=i686-pc-linux-gnu --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share --sysconfdir=/etc --localstatedir=/var/lib --without-xscreensaver --without-java --with-x --enable-mitshm --without-xinerama --with-qt-dir=/usr/qt/3 --enable-mt --with-qt-libraries=/usr/qt/3/lib --disable-dependency-tracking --disable-debug --without-debug --disable-final --without-arts --prefix=/usr/kde/3.5 --mandir=/usr/kde/3.5/share/man --infodir=/usr/kde/3.5/share/info --datadir=/usr/kde/3.5/share --sysconfdir=/usr/kde/3.5/etc --build=i686-pc-linux-gnu Traceback (most recent call last): File "/usr/bin/confcache", line 549, in ? sys.exit(c.run(args)) File "/usr/bin/confcache", line 182, in run elif not self._verify_files(): File "/usr/bin/confcache", line 289, in _verify_files for f, chksum in self.file_db.iteritems(): File "/usr/lib/python2.4/UserDict.py", line 101, in iteritems yield (k, self[k]) File "/usr/lib/python2.4/shelve.py", line 119, in __getitem__ value = Unpickler(f).load() EOFError !!! ERROR: kde-base/kdesktop-3.5.3-r1 failed. Call stack: ebuild.sh, line 1545: Called dyn_compile ebuild.sh, line 940: Called src_compile kdesktop-3.5.3-r1.ebuild, line 46: Called kde-meta_src_compile kde-meta.eclass, line 410: Called kde_src_compile kde.eclass, line 164: Called kde_src_compile 'all' kde.eclass, line 306: Called kde_src_compile 'myconf' 'configure' 'make' kde.eclass, line 288: Called econf '--without-xscreensaver' '--without-java' '--with-x' '--enable-mitshm' '--without-xinerama' '--with-qt-dir=/usr/qt/3' '--enable-mt' '--with-qt-libraries=/usr/qt/3/lib' '--disable-dependency-tracking' '--disable-debug' '--without-debug' '--disable-final' '--without-arts' '--prefix=/usr/kde/3.5' '--mandir=/usr/kde/3.5/share/man' '--infodir=/usr/kde/3.5/share/info' '--datadir=/usr/kde/3.5/share' '--sysconfdir=/usr/kde/3.5/etc' ebuild.sh, line 541: Called die !!! econf failed !!! If you need support, post the topmost build error, and the call stack if relevant. emerge --info: Portage 2.1.1_pre2-r2 (default-linux/x86/2006.0, gcc-3.4.6/vanilla, glibc-2.4-r3, 2.6.16-ck11 i686) ================================================================= System uname: 2.6.16-ck11 i686 Intel(R) Celeron(R) M processor 1400MHz Gentoo Base System version 1.12.1 dev-lang/python: 2.4.3-r1 dev-python/pycrypto: 2.0.1-r5 dev-util/ccache: [Not Present] dev-util/confcache: 0.4.2-r1 sys-apps/sandbox: 1.2.18.1 sys-devel/autoconf: 2.60 sys-devel/automake: 1.9.6-r2 sys-devel/binutils: 2.17 sys-devel/gcc-config: 2.0.0_rc1 sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.11-r5 ACCEPT_KEYWORDS="x86 ~x86" AUTOCLEAN="yes" CBUILD="i686-pc-linux-gnu" CFLAGS="-march=pentium4m -O2 -pipe -mfpmath=sse" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /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/env.d/java/ /etc/eselect/compiler /etc/gconf /etc/java-config/vms/ /etc/revdep-rebuild /etc/terminfo /etc/texmf/web2c" CXXFLAGS="-O2 -march=pentium4m -pipe -mfpmath=sse" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig confcache distlocks metadata-transfer parallel-fetch sandbox sfperms strict" GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/linux/distributions/gentoo" LINGUAS="pl" 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 acpi alsa apache2 apm avi bzip2 cdr crypt dlloader dri elibc_glibc exif fam foomaticdb gif glut gtk2 hal i8x0 isdnlog jpeg kde kdexdeltas kernel_linux lcms mad memlimit mmx mmxext mng mp3 mpeg ncurses nls no-old-linux nptl nptlonly ogg opengl pam pcre pdflib png posix pppd python qt qt3 qt4 quicktime readline reflection sdl sse ssl theora truetype truetype-fonts type1-fonts udev unicode vorbis wifi x86 xorg xv xvid xvmc zlib input_devices_keyboard input_devices_mouse input_devices_synaptics input_devices_evdev linguas_pl userland_GNU video_cards_i810 video_cards_i915" Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, LDFLAGS, PORTAGE_RSYNC_EXTRA_OPTS, PORTDIR_OVERLAY
rm -rf /var/tmp/confcache That happens from time to time, not related to portage.