Missing libavcodec library in ffmpeg port

[David Liontooth]

I just downloaded ffmpeg and it appears to be missing the
libavcodec.dylib.51.9.0 library:

$ port contents ffmpeg
Port ffmpeg contains:
  /opt/local/bin/ffmpeg
  /opt/local/bin/ffplay
  /opt/local/bin/ffserver
  /opt/local/include/ffmpeg/adler32.h
  /opt/local/include/ffmpeg/avcodec.h
  /opt/local/include/ffmpeg/avformat.h
  /opt/local/include/ffmpeg/avio.h
  /opt/local/include/ffmpeg/avutil.h
  /opt/local/include/ffmpeg/common.h
  /opt/local/include/ffmpeg/fifo.h
  /opt/local/include/ffmpeg/integer.h
  /opt/local/include/ffmpeg/intfloat_readwrite.h
  /opt/local/include/ffmpeg/log.h
  /opt/local/include/ffmpeg/mathematics.h
  /opt/local/include/ffmpeg/md5.h
  /opt/local/include/ffmpeg/opt.h
  /opt/local/include/ffmpeg/rational.h
  /opt/local/include/ffmpeg/rtp.h
  /opt/local/include/ffmpeg/rtsp.h
  /opt/local/include/ffmpeg/rtspcodes.h
  /opt/local/include/ffmpeg/swscale.h
  /opt/local/lib/libavcodec.a
  /opt/local/lib/libavformat.a
  /opt/local/lib/libavutil.a
  /opt/local/lib/pkgconfig/libavcodec.pc
  /opt/local/lib/pkgconfig/libavformat.pc
  /opt/local/lib/pkgconfig/libavutil.pc
  /opt/local/share/doc/ffmpeg/faq.html
  /opt/local/share/doc/ffmpeg/ffmpeg-doc.html
 
/opt/local/share/doc/ffmpeg/ffmpeg_powerpc_performance_evaluation_howto.txt
  /opt/local/share/doc/ffmpeg/ffplay-doc.html
  /opt/local/share/doc/ffmpeg/ffserver-doc.html
  /opt/local/share/doc/ffmpeg/hooks.html
  /opt/local/share/doc/ffmpeg/optimization.txt
  /opt/local/share/doc/ffmpeg/soc.txt
  /opt/local/share/doc/ffmpeg/TODO
  /opt/local/share/man/man1/ffmpeg.1.gz
  /opt/local/share/man/man1/ffplay.1.gz
  /opt/local/share/man/man1/ffserver.1.gz

A friend tells me I should be seeing this:

/opt/local/lib/libavcodec.dylib -> libavcodec.dylib.51.9.0
/opt/local/lib/libavcodec.dylib.51.9.0

I'm trying to build transcode but it fails because this library is missing.

Suggestions?

Cheers,
Dave