USE aacplus, ass and modplug are broken: >>> Configuring source in /var/tmp/portage/media-video/libav-0.8.2-r1/work/libav-0.8.2 ... Unknown option "--enable-libaacplus". See ./configure --help for available options. >>> Configuring source in /var/tmp/portage/media-video/libav-0.8.2-r1/work/libav-0.8.2 ... Unknown option "--enable-libass". See ./configure --help for available options. >>> Configuring source in /var/tmp/portage/media-video/libav-0.8.2-r1/work/libav-0.8.2 ... Unknown option "--enable-libmodplug". See ./configure --help for available options. Also USE fftools_* are broken, libav-0.8.2-r1.ebuild has: for i in ${FFTOOLS} ; do use fftools_${i} && emake tools/${i} done in src_compile and: for i in ${FFTOOLS} ; do use fftools_${i} && dobin tools/${i} done in src_install. But it does not work and is useless because FFTOOLS is empty and IUSE has no fftools_*. ffmpeg-0.10.3.ebuild has: FFTOOLS="aviocat cws2fws ffeval graph2dot ismindex pktdumper qt-faststart trasher" for i in ${FFTOOLS}; do IUSE="${IUSE} +fftools_$i" done REQUIRED_USE="... libv4l? ( v4l ) fftools_cws2fws? ( zlib ) ..." Seems 'libv4l? ( v4l )' should be and in libav ebuild, if libav supports libv4l.
Fixed by luca in revbump.