emerging kde-base/kdelibs-4.2.0-r2 I've tryed to avoid bug #239521 disabling collision-protect feature. The result is: >>> Installing kde-base/kdelibs-4.2.0-r2 * This package will overwrite one or more files that may belong to other * packages (see list below). You can use a command such as `portageq * owners / <filename>` to identify the installed package that owns a * file. If portageq reports that only one package owns a file then do * NOT file a bug report. A bug report is only useful if it identifies at * least two or more packages that are known to install the same file(s). * If a collision occurs and you can not explain where the file came from * then you should simply ignore the collision since there is not enough * information to determine if a real problem exists. Please do NOT file * a bug report at http://bugs.gentoo.org unless you report exactly which * two packages install the same file(s). Once again, please do NOT file * a bug report unless you have completely understood the above message. * * Detected file collision(s): * * /usr/share/apps/katepart/syntax/bibtex.xml * /usr/share/apps/katepart/syntax/latex.xml * * Searching all installed packages for file collisions... * * Press Ctrl-C to Stop * * app-editors/kile-2.0.2 * /usr/share/apps/katepart/syntax/bibtex.xml * /usr/share/apps/katepart/syntax/latex.xml * * Package 'kde-base/kdelibs-4.2.0-r2' NOT merged due to file collisions. * If necessary, refer to your elog messages for the whole content of the * above message. I'm sure I've disabled it: # cat /var/tmp/portage/kde-base/kdelibs-4.2.0-r2/build-info/FEATURES cvs distlocks elog fixpackages java-strict metadata-transfer multilib-strict parallel-fetch protect-owned sandbox sfperms splitdebug strict unmerge-orphans userfetch userpriv usersandbox # emerge --info Portage 2.1.6.7 (default/linux/amd64/2008.0/desktop, gcc-4.3.3, glibc-2.9_p20081201-r1, 2.6.28-gentoo-r1 x86_64) ================================================================= System uname: Linux-2.6.28-gentoo-r1-x86_64-AMD_Athlon-tm-_64_Processor_3500+-with-glibc2.2.5 Timestamp of tree: Thu, 12 Feb 2009 16:35:01 +0000 distcc 3.1 x86_64-pc-linux-gnu [disabled] ccache version 2.4 [disabled] app-shells/bash: 3.2_p48-r1 dev-java/java-config: 1.3.7-r1, 2.1.7 dev-lang/python: 2.5.4-r2 dev-python/pycrypto: 2.0.1-r6 dev-util/ccache: 2.4-r8 dev-util/cmake: 2.6.2-r1 sys-apps/baselayout: 2.0.0 sys-apps/openrc: 0.4.3 sys-apps/sandbox: 1.3.6 sys-devel/autoconf: 2.13, 2.63 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10.2 sys-devel/binutils: 2.19.1 sys-devel/gcc-config: 1.4.1 sys-devel/libtool: 2.2.6a virtual/os-headers: 2.6.28-r1 ACCEPT_KEYWORDS="amd64 ~amd64" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-g -ggdb -march=athlon64 -O2 -pipe -fno-strict-aliasing" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/kde/4.1/env /usr/kde/4.1/share/config /usr/kde/4.1/shutdown /usr/kde/4.2/env /usr/kde/4.2/share/config /usr/kde/4.2/shutdown /usr/share/config /var/lib/hsqldb" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/initng/daemon /etc/initng/net /etc/initng/system /etc/php/apache2-php5/ext-active/ /etc/php/cgi-php5/ext-active/ /etc/php/cli-php5/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/splash /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c /etc/udev/rules.d" CXXFLAGS="-g -ggdb -march=athlon64 -O2 -pipe -fno-strict-aliasing" DISTDIR="/home/media/dist" FEATURES="cvs distlocks elog fixpackages java-strict metadata-transfer multilib-strict parallel-fetch protect-owned sandbox sfperms splitdebug strict unmerge-orphans userfetch userpriv usersandbox" GENTOO_MIRRORS="ftp://mirror.switch.ch/mirror/gentoo/" LANG="it_IT.UTF-8" LC_ALL="it_IT.UTF-8" LDFLAGS="-Wl,-O1" LINGUAS="it" PKGDIR="/home/ftp/packages" PORTAGE_COMPRESS="bzip2" PORTAGE_COMPRESS_FLAGS="-9" PORTAGE_RSYNC_EXTRA_OPTS=" --timeout=800 --progress " PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/overlays/portage /home/sandro/cvstree/tinyos-2-overlay" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="3dnow 3dnowext 3ds 7zip X a52 aac acl acpi alsa amd64 amr apache2 arts audiofile avahi bash-completion berkdb bl branding bzip2 cairo cal3d caps ccache cdb cddb cdparanoia cdr cg chroot cli cpudetection cracklib crypt css cups curl custom-cflags dbus debug devhelp dga directfb disk-partition djvu dmi dovecot-sasl dri dts dv dvd dvdr dvdread emboss emerald encode epydoc erandom esd evo exif expat extrafilters fam fame ffmpeg firefox flac fltk foomaticdb fortran gd gdbm ggi gif gimp glib glibc-omitfp glitz glut gmp gnokii gnome gnutls gphoto2 gpm graphviz gsm gstreamer gtk gtkhtml guile hal hbci howl-compat iconv idn ieee1394 imagemagick imlib ipv6 isc isdnlog ithreads java javacomm javascript jbig jce jikes jpeg jpeg2k justify kde kdeenablefinal kdehiddenvisibility kqemu lcms ldap libcaca libnotify linuxthreads-tls lm_sensors logitech-mouse logrotate lzo mad mailwrapper matroska mbox mdb mhash midi mikmod mjpeg mmap mmx mmxext mng motif mozdevelop mp3 mpeg mppe-mppc msn mudflap multilib musepack musicbrainz mysql ncurses network-cron nfs nls nptl nptlonly nsplugin numeric nvidia odbc ode offensive ofx ogg ogre openexr opengl openmp oss pam parport pch pcre pdf perl php png povray ppds pppd print pulseaudio python qa qt3support qt4 quicktime quotes rdesktop readline reflection resolvconf restrict-javascript rtc samba scanner sdl semantic-desktop session slang slp smime sndfile snmp speex spell spl sse sse2 ssl startup-notification subversion svg sysfs syslog tcpd test tetex tga theora threads tidy tiff timidity tk truetype unicode usb userlocales utempter v4l v4l2 vcd vda vorbis vorbis-psy wma wmf wmp xattr xcomposite xforms xine xinerama xml xorg xpm xprint xscreensaver xulrunner xv xvid xvmc yv12 zeroconf zlib" ALSA_CARDS="intel8x0" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="actions alias auth_basic authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" APACHE2_MPMS="worker" CAMERAS="canon directory panasonic pccam300 " ELIBC="glibc" FOO2ZJS_DEVICES="hp1005 hpp1005" INPUT_DEVICES="mouse evdev keyboard" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="it" USERLAND="GNU" VIDEO_CARDS="nvidia nv" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, MAKEOPTS
You also have "protect-owned" enabled, which is similar in function to collision-protect. Try disabling that too, in the same manner.
Please re-open if appropriate