Seems to be becouse of the removed .la files. i686-pc-linux-gnu-gcc -shared .libs/libswfdecmozilla_la-plugin.o .libs/libswfdecmozilla_la-plugin_x11.o .libs/libswfdecmozilla_la-swfmoz_dialog.o .libs/libswfdecmozilla_la-swfmoz_loader.o .libs/libswfdecmozilla_la-swfmoz_player.o /usr/lib/libswfdec-gtk-0.6.so /usr/lib/libswfdec-0.6.so /usr/lib/libgtk-x11-2.0.so /usr/lib/liboil-0.3.so -lm -lrt /usr/lib/libgdk-x11-2.0.so /usr/lib/libatk-1.0.so /usr/lib/libgdk_pixbuf-2.0.so /usr/lib/libpangocairo-1.0.so /usr/lib/libpango-1.0.so /usr/lib/libcairo.so /usr/lib/libgobject-2.0.so /usr/lib/libgmodule-2.0.so -ldl /usr/lib/libglib-2.0.so -march=pentium4 -Wl,--export-dynamic -Wl,-soname -Wl,libswfdecmozilla.so -Wl,-version-script -Wl,.libs/libswfdecmozilla.ver -o .libs/libswfdecmozilla.so i686-pc-linux-gnu-ar cru .libs/libswfdecmozilla.a libswfdecmozilla_la-plugin.o libswfdecmozilla_la-plugin_x11.o libswfdecmozilla_la-swfmoz_dialog.o libswfdecmozilla_la-swfmoz_loader.o libswfdecmozilla_la-swfmoz_player.o i686-pc-linux-gnu-ranlib .libs/libswfdecmozilla.a creating libswfdecmozilla.la /bin/sed: can't read /usr/lib/libmad.la: No such file or directory libtool: link: `/usr/lib/libmad.la' is not a valid libtool archive make[2]: *** [libswfdecmozilla.la] Fel 1 make[2]: Leaving directory `/var/tmp/portage/net-www/swfdec-mozilla-0.6.0/work/swfdec-mozilla-0.6.0/src' make[1]: *** [all-recursive] Fel 1 make[1]: Leaving directory `/var/tmp/portage/net-www/swfdec-mozilla-0.6.0/work/swfdec-mozilla-0.6.0' make: *** [all] Fel 2 Portage 2.1.5_rc5 (hardened/linux/x86/2008.0/desktop, gcc-4.2.3, glibc-2.7-r2, 2.6.24-gentoo-r5 i686) ================================================================= System uname: 2.6.24-gentoo-r5 i686 Intel(R) Pentium(R) 4 CPU 2.80GHz Timestamp of tree: Mon, 21 Apr 2008 14:34:01 +0000 app-shells/bash: 3.2_p33 dev-lang/python: 2.5.2-r2 sys-apps/baselayout: 2.0.0 sys-apps/openrc: 0.2.2 sys-apps/sandbox: 1.2.18.1-r2 sys-devel/autoconf: 2.13, 2.62 sys-devel/automake: 1.5, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10.1 sys-devel/binutils: 2.18-r1 sys-devel/gcc-config: 1.4.0-r4 sys-devel/libtool: 1.5.26 virtual/os-headers: 2.6.25-r1 ACCEPT_KEYWORDS="x86 ~x86" CBUILD="i686-pc-linux-gnu" CFLAGS="-march=pentium4 -pipe -O2 -fforce-addr -ggdb -D_FORTIFY_SOURCE=2" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc" CONFIG_PROTECT_MASK="/etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/splash /etc/terminfo /etc/udev/rules.d" CXXFLAGS="-march=pentium4 -pipe -O2 -fforce-addr -ggdb -D_FORTIFY_SOURCE=2" DISTDIR="/usr/portage/distfiles" FEATURES="distlocks metadata-transfer parallel-fetch sandbox sfperms splitdebug strict test unmerge-orphans userfetch" GENTOO_MIRRORS="ftp://ftp.sunet.se/pub/os/Linux/distributions/gentoo" LANG="sv" LC_ALL="sv_SE.UTF-8" LDFLAGS="" LINGUAS="sv" MAKEOPTS="-j3" PKGDIR="/usr/portage/packages" 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="/var/portage" PORTDIR_OVERLAY="/usr/portage/local/layman/java-overlay /usr/portage/local/layman/nouveau /usr/portage/local/layman/java-gcj-overlay /usr/local/overlays/portage /usr/local/overlays/toolchain-overlay" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="7zip X a52 aac acl acpi alsa amr amrnb amrwb applet asf attr audioscrobbler avahi bash bash-completion berkdb bogofilter branding bzip2 cairo cdda cddb cdr cli consolekit cracklib crypt cups dbus device-mapper disk-partition divx dpms dri dts dvd dvdnav dvdr dvdread eds emboss encode evo evolution fam fat fbcondecor ffmpeg firefox flac fontconfig freetype ftp galago gd gdbm gedit gif gimp glitz gmedia gmp gnome gnome-keyring gpm gsf gstreamer gtk gtk2 hal hardened hpn inotify ipv6 isdnlog jabber joystick jpeg kerberos keyring lcms ldap libnotify libsexy lm_sensors logrotate lzma lzo mad matroska midi mikmod mmx mng mp3 mpeg msn mudflap musepack musicbrainz nautilus ncurses network-cron networkmanager nfs nls nptl nptlonly ntfs ntp numeric obex offensive ogg opengl openmp pam pcre pdf perl pic pidgin png ppds pppd python qt3support quicktime readline reflection reiserfs samba scanner sdl session smp spamassasin spell spl srt sse sse2 ssh ssl startup-notification subtitles svg syslog tcpd test theora tiff tracker truetype unicode urandom usb utf8 vorbis win32codecs wma wmf wmp x264 x86 xattr xcb xinerama xinetd xml xorg xulrunner xv xvid zeroconf zlib" ALSA_CARDS="emu10k1 intel8x0 usb-audio" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter 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 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" ELIBC="glibc" INPUT_DEVICES="evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="sv" USERLAND="GNU" VIDEO_CARDS="nouveau vesa nv" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
run revdep-rebuild.
As Gilles said, please run revdev-rebuild
