I have demasked and successfully compiled app-misc/basenji-0.7.1 at my amd64 host. The application runs fine but barks about libExtractor not found, so I decided to install media-libs/libextractor-0.5.20c which compiles fine but refuses to complete due to one file collsion: >>> Installing (1 of 1) media-libs/libextractor-0.5.20c ... * Detected file collision(s): * * /usr/lib64/pkgconfig/libextractor.pc * * Searching all installed packages for file collisions... * * Press Ctrl-C to Stop * * app-misc/basenji-0.7.1 * /usr/lib64/pkgconfig/libextractor.pc Reproducible: Always emerge.info: Portage 2.1.9.25 (default/linux/amd64/10.0/desktop, gcc-4.4.5, glibc-2.12.1-r3, 2.6.35-vs2.3.0.36.32-gentoo x86_64) ================================================================= System uname: Linux-2.6.35-vs2.3.0.36.32-gentoo-x86_64-Intel-R-_Atom-TM-_CPU_330_@_1.60GHz-with-gentoo-2.0.1 Timestamp of tree: Mon, 06 Dec 2010 03:15:01 +0000 ccache version 3.1.3 [enabled] app-shells/bash: 4.1_p9 dev-java/java-config: 2.1.11-r2 dev-lang/python: 2.6.6-r1, 2.7.1, 3.1.3 dev-util/ccache: 3.1.3 dev-util/cmake: 2.8.1-r2 sys-apps/baselayout: 2.0.1-r1 sys-apps/openrc: 0.6.7 sys-apps/sandbox: 2.4 sys-devel/autoconf: 2.13, 2.68 sys-devel/automake: 1.7.9-r2, 1.9.6-r3, 1.10.3, 1.11.1 sys-devel/binutils: 2.20.1-r1 sys-devel/gcc: 4.3.5, 4.4.5, 4.5.1-r1 sys-devel/gcc-config: 1.4.1 sys-devel/libtool: 2.4-r1 sys-devel/make: 3.82 virtual/os-headers: 2.6.36.1 (sys-kernel/linux-headers) ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="*" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O3 -march=core2 -pipe -fomit-frame-pointer" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /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" CXXFLAGS="-O3 -march=core2 -pipe -fomit-frame-pointer" DISTDIR="/usr/portage/distfiles" FEATURES="assume-digests binpkg-logs ccache distlocks fixlafiles fixpackages news parallel-fetch protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch" GENTOO_MIRRORS="http://mirror.netcologne.de/gentoo/ ftp://ftp.wh2.tu-dresden.de/pub/mirrors/gentoo ftp://ftp.tu-clausthal.de/pub/linux/gentoo/ " LANG="C" LDFLAGS="-Wl,-O1 -Wl,--as-needed" LINGUAS="de en" MAKEOPTS="-j1 -l 10" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" 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="/var/lib/layman/sunrise /var/lib/layman/lcd-filtering /usr/local/portage" SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage" USE="X a52 aac acl acpi alsa amd64 bash-completion berkdb bluetooth branding bzip2 cairo cdr cli consolekit corefonts cracklib crypt cups cxx dbus dga dri dts dvd dvdr emboss encode exif fam ffmpeg firefox flac fortran gdbm gif gpm grub gstreamer gtk gtk2 hal iconv imagemagick imap ipv6 java jpeg lame lcdfilter lcms ldap libnotify mad maildir memlimit mikmod mmap mmx mng modules mp3 mp4 mpeg mudflap multilib ncurses nls nptl nptlonly offensive ogg opengl openmp pam pango pcre pda pdf perl png portaudio posix ppds pppd python qt3support qt4 readline rtsp sdl seamonkey session sharedmem smp socks5 spell sse sse2 ssl startup-notification svg sysfs tcpd threads tiff truetype type3 unicode usb v4l2 vorbis x264 xcb xml xorg xulrunner xv xvid zlib" ALSA_CARDS="ICH7" 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_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid 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" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ubx" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="de en" PHP_TARGETS="php5-2" QEMU_SOFTMMU_TARGETS="i386 ppc ppc64 x86_64" QEMU_USER_TARGETS="arm i386 x86_64" RUBY_TARGETS="ruby18" USERLAND="GNU" VIDEO_CARDS="intel i810 i813 mach64 r128 vesa" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
Looks like app-misc/basenji bundles a copy of media-libs/libextractor. The internal copy should be removed and therefore depend on media-libs/libextractor.
I fixed it temporarily by deleting the libextractor.pc file that basenji installs, but I leave the bug open because the good thing to do would be to unbundle libextractor and musicbrainz.
I added a dependency on libextractor on -r2. Turns out that the dll built by the package is a C# binding that does not exist anywhere else. So no need to unbundle anything. Same thing for musicbrainz.
