blender and vlc can no longer be emerged together with ffmpeg support enabled. blender requires >=media-video/ffmpeg-0.4.9_p20070616-r1 and vlc requires <media-video/ffmpeg-0.4.9_p20070616-r1 Reproducible: Always Steps to Reproduce: 1.ACCEPT_KEYWORDS=~amd64 USE=ffmpeg emerge -pv -1 media-video/ffmpeg =media-video/vlc-0.8.6e =media-gfx/blender-2.45 2. 3. Actual Results: These are the packages that would be merged, in order: Calculating dependencies / !!! Multiple versions within a single package slot have been !!! pulled into the dependency graph: media-video/ffmpeg:0 ('ebuild', '/', 'media-video/ffmpeg-0.4.9_p20070616', 'merge') pulled in by ('ebuild', '/', 'media-video/vlc-0.8.6e', 'merge') ('ebuild', '/', 'media-video/ffmpeg-0.4.9_p20070616-r2', 'merge') pulled in by ('ebuild', '/', 'media-gfx/blender-2.45', 'merge') ('ebuild', '/', 'media-video/vlc-0.8.6e', 'merge') It may be possible to solve this problem by using package.mask to prevent one of those packages from being selected. However, it is also possible that conflicting dependencies exist such that they are impossible to satisfy simultaneously. If such a conflict exists in the dependencies of two different packages, then those packages can not be installed simultaneously. For more information, see MASKED PACKAGES section in the emerge man page or refer to the Gentoo Handbook. ... done! [ebuild U ] media-video/ffmpeg-0.4.9_p20070616-r2 [0.4.9_p20070616] USE="X a52 aac encode ieee1394 imlib mmx ogg theora truetype vorbis x264 xvid zlib (-altivec) -amr -debug -doc -ipv6% -network -oss -sdl -test -threads -v4l" 0 kB [ebuild R ] media-video/ffmpeg-0.4.9_p20070616 USE="X a52 aac encode ieee1394 imlib mmx ogg theora truetype vorbis x264 xvid zlib (-altivec) -amr -debug -doc -network -oss -sdl -test -threads -v4l" 0 kB [ebuild U ] media-video/vlc-0.8.6e [0.8.6d] USE="X a52 alsa dts dvb dvd flac matroska mp3 mpeg ncurses ogg opengl png svg theora truetype vcd vorbis wxwindows x264 xml xv (-3dfx) -aalib (-altivec) -arts -avahi -bidi -cdda -cddb -corba -daap -dc1394 -debug -directfb -esd -fbcon -ggi -gnome -gnutls -hal -httpd -jack -libcaca -libnotify -lirc -live -modplug -musepack -nsplugin -optimisememory -oss -rtsp -samba -sdl -sdl-image -seamonkey -shout -skins -speex -stream (-svga) -upnp -v4l -vlm (-win32codecs) -xinerama -xosd" 10,839 kB [ebuild R ] media-gfx/blender-2.45 USE="ffmpeg jpeg png -blender-game -nls -openal -openexr -verse (-sdl%)" 0 kB Total: 4 packages (2 upgrades, 2 reinstalls), Size of downloads: 10,839 kB Expected Results: blender-2.45 and a vlc agreeing on ffmpeg version or slotting of ffmpeg I was using vlc-0.8.6d until 2008-02-29, but this ebuild is no longer in portage tree.
Well, either use stable blender or unstable vlc.