compile error 2

hi all i have a little problem,

ps/libffmpeg_decoder_la-ffmpeg.Tpo -c ffmpeg.c -fPIC -DPIC -o .libs/libffmpeg_decoder_la-ffmpeg.o
ffmpeg.c: In function `ffmpeg_open':
ffmpeg.c:124: warning: comparison between signed and unsigned
ffmpeg.c: In function `ffmpeg_seek':
ffmpeg.c:177: warning: unused variable `data'
ffmpeg.c:178: warning: unused variable `err'
ffmpeg.c: In function `ffmpeg_decode':
ffmpeg.c:269: warning: `avcodec_decode_audio' is deprecated (declared at /usr/include/ffmpeg/avcodec.h:2763)
ffmpeg.c: At top level:
ffmpeg.c:175: warning: unused parameter 'sec'
/bin/sh ../../libtool --tag=CC --mode=link gcc -pthread -g -O2 -Wall -W -I/usr/include/alsa -I/usr/local/include -I/usr/local/include -export-dynamic -o -rpath /usr/local/lib/moc/decoder_plugins -module -avoid-version libffmpeg_decoder_la-ffmpeg.lo -lavformat -lavcodec -lz -la52 -lmp3lame -lxvidcore -lx264 -lfaac -lfaad -ldl -ltheora -lvorbisenc -lavutil -lvorbis -lm -logg -lm
gcc -shared .libs/libffmpeg_decoder_la-ffmpeg.o -pthread -lavformat -lavcodec -lz -la52 /usr/lib/ -lxvidcore -lx264 -lfaac -lfaad -ldl /usr/lib/ /usr/lib/ -lavutil /usr/lib/ /usr/lib/ -lm -Wl,-soname -Wl, -o .libs/
/usr/lib/gcc/i486-slackware-linux/3.4.6/../../../../i486-slackware-linux/bin/ld: cannot find -la52
collect2: ld returned 1 exit status
make[3]: *** [] Błąd 1
make[3]: Opuszczenie katalogu `/home/ja/moc-2.4.2/decoder_plugins/ffmpeg'
make[2]: *** [all-recursive] Błąd 1
make[2]: Opuszczenie katalogu `/home/ja/moc-2.4.2/decoder_plugins'
make[1]: *** [all-recursive] Błąd 1
make[1]: Opuszczenie katalogu `/home/ja/moc-2.4.2'
make: *** [all] Błąd 2
what i have do please a asap answer and i sorry too my english is on
low level :))

You need a52dec:
liba52 is a free library for decoding ATSC A/52 streams. The A/52
standard is used in a variety of applications, including digital
television and DVD. It is also known as AC-3.

a52dec should be (optional) ffmpeg dependency.

next problem :))
mocp: symbol lookup error: /usr/local/lib/moc/decoder_plugins/ undefined symbol: rccInit

I do not know where this symbol should be. But to be sure.

$ ldd => (0xffffe000) => /usr/lib/ (0xb7f1b000) => /usr/lib/ (0xb7f09000) => /usr/lib/ (0xb7ef5000) => /lib/ (0xb7ed1000) => /lib/ (0xb7ebf000) => /lib/ (0xb7dd1000)
/lib/ (0x80000000)

It's from librcc.

Damian Pietras - MOC developer

So what i have do if i have installed librcc and all time this error show it?