ffmpeg.c: In function `do_video_out':
ffmpeg.c:584: warning: dereferencing type-punned pointer will break strict-alias ing rules
ffmpeg.c: In function `av_encode':
ffmpeg.c:1272: warning: dereferencing type-punned pointer will break strict-alia sing rules
gcc -O2 -march=pentium4 -fomit-frame-pointer -fno-pie -Wall -g -I. -I/var/tmp/po rtage/ffmpeg-0.4.7/work/ffmpeg-0.4.7 -I/var/tmp/portage/ffmpeg-0.4.7/work/ffmpeg -0.4.7/libavcodec -I/var/tmp/portage/ffmpeg-0.4.7/work/ffmpeg-0.4.7/libavformat -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_GNU_SOURCE -c -o cmdutils.o cmduti ls.c
gcc -Wl,--warn-common -rdynamic -g  -o ffmpeg_g ffmpeg.o cmdutils.o -L./libavfor mat -lavformat -L./libavcodec -lavcodec -lm -lz -ldl -logg -lvorbis -lvorbisenc
./libavcodec/libavcodec.so: undefined reference to `bone'
./libavcodec/libavcodec.so: undefined reference to `w05'
./libavcodec/libavcodec.so: undefined reference to `wm1010'
./libavcodec/libavcodec.so: undefined reference to `ff_pw_3'
./libavcodec/libavcodec.so: undefined reference to `ff_pw_20'
./libavcodec/libavcodec.so: undefined reference to `d40000'
./libavcodec/libavcodec.so: undefined reference to `w20'
collect2: ld returned 1 exit status
make: *** [ffmpeg_g] Error 1

!!! ERROR: media-video/ffmpeg-0.4.7 failed.
!!! Function src_compile, Line 54, Exitcode 2
!!! make failed.