linphone里面的mediastreamer2安装错误

[neu_sunlei]

正在进入目录 `/home/ghazi/linphone-3.1.1/mediastreamer2/tests'
/bin/bash ../libtool --tag=CC --mode=link gcc -I.. -I../../oRTP/include -DVIDEO_ENABLED -DHAVE_SDL -DORTP_INET6 -DINET6 -Wall -O2 -g -pthread -D_REENTRANT -rdynamic -o mediastream mediastream.o ../src/libmediastreamer.la ../../oRTP/src/libortp.la -lasound -lspeex -lspeexdsp -lavcodec -lSDL -lX11 -pthread -lpthread -lrt -lvorbisenc -ldl
gcc -I.. -I../../oRTP/include -DVIDEO_ENABLED -DHAVE_SDL -DORTP_INET6 -DINET6 -Wall -O2 -g -pthread -D_REENTRANT -rdynamic -o .libs/mediastream mediastream.o -pthread ../src/.libs/libmediastreamer.so ../../oRTP/src/.libs/libortp.so /usr/lib/libasound.so /usr/lib/libspeex.so /usr/lib/libspeexdsp.so -lavcodec /usr/lib/libSDL.so -lX11 -lpthread -lrt /usr/lib/libvorbisenc.so -ldl
../src/.libs/libmediastreamer.so: undefined reference to `av_strdup'
../src/.libs/libmediastreamer.so: undefined reference to `av_malloc'
../src/.libs/libmediastreamer.so: undefined reference to `av_random_init'
../src/.libs/libmediastreamer.so: undefined reference to `av_strlcat'
../src/.libs/libmediastreamer.so: undefined reference to `av_update_lls'
../src/.libs/libmediastreamer.so: undefined reference to `av_solve_lls'
../src/.libs/libmediastreamer.so: undefined reference to `av_md5_final'
../src/.libs/libmediastreamer.so: undefined reference to `av_md5_init'
../src/.libs/libmediastreamer.so: undefined reference to `av_realloc'
../src/.libs/libmediastreamer.so: undefined reference to `av_free'
../src/.libs/libmediastreamer.so: undefined reference to `ff_log2_tab'
../src/.libs/libmediastreamer.so: undefined reference to `av_log'
../src/.libs/libmediastreamer.so: undefined reference to `av_memcpy_backptr'
../src/.libs/libmediastreamer.so: undefined reference to `av_reduce'
../src/.libs/libmediastreamer.so: undefined reference to `av_crc'
../src/.libs/libmediastreamer.so: undefined reference to `av_md5_size'
../src/.libs/libmediastreamer.so: undefined reference to `av_evaluate_lls'
../src/.libs/libmediastreamer.so: undefined reference to `ff_sqrt_tab'
../src/.libs/libmediastreamer.so: undefined reference to `av_mallocz'
../src/.libs/libmediastreamer.so: undefined reference to `av_div_q'
../src/.libs/libmediastreamer.so: undefined reference to `av_md5_update'
../src/.libs/libmediastreamer.so: undefined reference to `av_freep'
../src/.libs/libmediastreamer.so: undefined reference to `av_d2q'
../src/.libs/libmediastreamer.so: undefined reference to `av_囗囗囗'
../src/.libs/libmediastreamer.so: undefined reference to `av_crc_init'
../src/.libs/libmediastreamer.so: undefined reference to `av_lzo1x_decode'
../src/.libs/libmediastreamer.so: undefined reference to `av_crc_get_table'
../src/.libs/libmediastreamer.so: undefined reference to `av_log_get_level'
../src/.libs/libmediastreamer.so: undefined reference to `av_random_generate_untempered_numbers'
../src/.libs/libmediastreamer.so: undefined reference to `av_strlcpy'
../src/.libs/libmediastreamer.so: undefined reference to `av_init_lls'
collect2: ld returned 1 exit status

.sodu /configure--prefix=/usr 通过了，sudo make有错误，有知道是什么问题么？
libmediastreamer的库都装了遍了，deb的安装文件也用过！就是有错误，linphone也太难装了不，卡在这个位置了，谁帮帮忙阿！！

[jinhou]

解决方法：1. vi mediastreamer/tests/Makefile, 在LIBS=那里增加-lavutil
2. vi mediastreamer/src/Makefile, 在LIBS=那里增加-lavutil
3. 若还不行，先make clean一下，再make

[neu_sunlei]

虽然过了一个月才有人回复，但是也谢谢了

[sshan]

可否将linphone的安装过程详细的介绍一下

谢谢