* Package:    media-video/ffmpeg-0.7.1
 * Repository: gentoo
 * Maintainer: media-video@gentoo.org
 * USE:        3dnow 3dnowext X aac alsa amd64 bzip2 consolekit elibc_glibc encode hardcoded-tables kernel_linux mmx mmxext mp3 multilib policykit sdl ssse3 theora threads truetype userland_GNU vdpau video_cards_nvidia vorbis x264 xvid zlib
 * FEATURES:   sandbox
>>> Unpacking source...
>>> Unpacking ffmpeg-0.7.1.tar.bz2 to /var/tmp/portage/media-video/ffmpeg-0.7.1/work
>>> Source unpacked in /var/tmp/portage/media-video/ffmpeg-0.7.1/work
>>> Preparing source in /var/tmp/portage/media-video/ffmpeg-0.7.1/work/ffmpeg-0.7.1 ...
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/media-video/ffmpeg-0.7.1/work/ffmpeg-0.7.1 ...
ERROR: libx264 version must be >= 0.115.

If you think configure made a mistake, make sure you are using the latest
version from Git.  If the latest version fails, report the problem to the
ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
Include the log file "config.log" produced by configure as this will help
solving the problem.
 * ERROR: media-video/ffmpeg-0.7.1 failed (configure phase):
 *   (no error message)
 *
 * Call stack:
 *     ebuild.sh, line  56:  Called src_configure
 *   environment, line 2704:  Called die
 * The specific snippet of code:
 *       ./configure --prefix=/usr --libdir=/usr/$(get_libdir) --shlibdir=/usr/$(get_libdir) --mandir=/usr/share/man --enable-shared --cc="$(tc-getCC)" $(use_enable static-libs static) ${myconf} || die
 *
 * If you need support, post the output of 'emerge --info =media-video/ffmpeg-0.7.1',
 * the complete build log and the output of 'emerge -pqv =media-video/ffmpeg-0.7.1'.
 * The complete build log is located at '/var/tmp/portage/media-video/ffmpeg-0.7.1/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/media-video/ffmpeg-0.7.1/temp/environment'.
 * S: '/var/tmp/portage/media-video/ffmpeg-0.7.1/work/ffmpeg-0.7.1'