g++  -o mythbackend version.o autoexpire.o encoderlink.o filetransfer.o httpstatus.o main.o mainserver.o playbacksock.o scheduler.o server.o housekeeper.o upnpcdstv.o upnpcdsmusic.o moc_mainserver.o moc_server.o   -L/usr/share/qt3/lib -L../../libs/libmyth -L../../libs/libmythtv -L../../libs/libavutil -L../../libs/libavcodec -L../../libs/libavformat -L../../libs/libmythfreemheg -L../../libs/libmythui -L../../libs/libmythupnp -L../../libs/libmythlivemedia -lmythtv-0.20 -lmythavformat-0.20 -lmythavutil-0.20 -lmythavcodec-0.20 -lmythfreemheg-0.20 -lmythupnp-0.20 -lmythlivemedia-0.20 -lmyth-0.20 -lmythui-0.20 -lfreetype -lmp3lame -L/usr/X11R6/lib -lqt-mt -lGLU -lGL -lXmu -lXext -lX11 -lm -lpthread
../../libs/libavcodec/libmythavcodec-0.20.so: undefined reference to `put_pixels8_x2_arm'
../../libs/libavcodec/libmythavcodec-0.20.so: undefined reference to `MPV_common_init_armv4l'
../../libs/libavcodec/libmythavcodec-0.20.so: undefined reference to `put_no_rnd_pixels8_y2_arm'
../../libs/libavcodec/libmythavcodec-0.20.so: undefined reference to `put_pixels8_arm'
../../libs/libmyth/libmyth-0.20.so: undefined reference to `ScreenSaverX11::ScreenSaverX11()'
../../libs/libavcodec/libmythavcodec-0.20.so: undefined reference to `put_no_rnd_pixels8_x2_arm'
../../libs/libavcodec/libmythavcodec-0.20.so: undefined reference to `put_pixels8_y2_arm'
../../libs/libavcodec/libmythavcodec-0.20.so: undefined reference to `simple_idct_ARM'
collect2: ld returned 1 exit status
make[2]: *** [mythbackend] Error 1
make[2]: Leaving directory `/root/mythtv-0.20/programs/mythbackend'
make[1]: *** [sub-mythbackend] Error 2
make[1]: Leaving directory `/root/mythtv-0.20/programs'
make: *** [sub-programs] Error 2