bash-3.2$ make V=1
gcc -Llibavcodec -Llibavdevice -Llibavfilter -Llibavformat -Llibavresample -Llibavutil -Llibpostproc -Llibswscale -Llibswresample -Wl,-dynamic,-search_paths_first  -o ffmpeg_g ffmpeg_opt.o ffmpeg_filter.o ffmpeg.o cmdutils.o  -lavdevice -lavfilter -lavformat -lavcodec -lpostproc -lswresample -lswscale -lavutil -Wl,-framework,Cocoa -L/opt/local/lib -lSDLmain -lSDL -lm -liconv -lbz2 -lz
ld: warning: directory not found for option '-Llibavresample'
Undefined symbols for architecture x86_64:
  "_ff_print_debug_info2", referenced from:
      _decode_frame in libavcodec.a(h264.o)
  "_iconv_open", referenced from:
      _avcodec_decode_subtitle2 in libavcodec.a(utils.o)
  "_iconv", referenced from:
      _avcodec_decode_subtitle2 in libavcodec.a(utils.o)
  "_iconv_close", referenced from:
      _avcodec_decode_subtitle2 in libavcodec.a(utils.o)