[Users] a compile problem with linphone1.6 and 1.7

Hi,everone. now I am using openser1.1 and linphone1.6 and 1.7 version, after I configure linphone: ./configure --disable-strict, it displays :Now type 'make' to compile, and then 'make install' as root to install it. but when I execute make command, I get the errors as follows: gcc -DENABLE_TRACE -D_ORTP_SOURCE -g -O2 -o .libs/linphonec linphonec.o commands.o ../coreapi/.libs/liblinphone.so -lreadline -lncurses -Wl,--rpath -Wl,/usr/local/linphone/lib /root/linphone-1.6.0/mediastreamer2/src/.libs/libmediastreamer.so.0: undefined reference to `av_crc04C11DB7' /root/linphone-1.6.0/mediastreamer2/src/.libs/libmediastreamer.so.0: undefined reference to `av_realloc' /root/linphone-1.6.0/mediastreamer2/src/.libs/libmediastreamer.so.0: undefined reference to `av_log' /root/linphone-1.6.0/mediastreamer2/src/.libs/libmediastreamer.so.0: undefined reference to `ff_sqrt_tab' /root/linphone-1.6.0/mediastreamer2/src/.libs/libmediastreamer.so.0: undefined reference to `lzo1x_decode' /root/linphone-1.6.0/mediastreamer2/src/.libs/libmediastreamer.so.0: undefined reference to `av_d2q' /root/linphone-1.6.0/mediastreamer2/src/.libs/libmediastreamer.so.0: undefined reference to `av_random_generate_untempered_numbers' /root/linphone-1.6.0/mediastreamer2/src/.libs/libmediastreamer.so.0: undefined reference to `av_init_lls' I have serached a lot of materials, but they seems to be no help to solve this problem. Now I have no idea. And another question is : How to enable IPv6 from the settings? Any advice from you will be appreciated. Jacky ___________________________________________________________ 抢注雅虎免费邮箱3.5G容量，20M附件！ http://cn.mail.yahoo.com