编译linphone时候出现下面的错误，不知道如何修改，望得到高人指点。谢谢

编译linphone时候出现下面的错误，不知道如何修改，望得到高人指点。谢谢
gcc -DENABLE_TRACE -D_ORTP_SOURCE -DOSIP_MT -g -O2 -o .libs/linphonec linphonec.o commands.o  ../coreapi/.libs/liblinphone.so -lreadline -lncurses /usr/lib/libosipparser2.so /usr/lib/libosip2.so -Wl,--rpath -Wl,/usr/local/lib
/arm/linphone-1.7.1/mediastreamer2/src/.libs/libmediastreamer.so.0: undefined reference to `speex_echo_state_reset'
/arm/linphone-1.7.1/mediastreamer2/src/.libs/libmediastreamer.so.0: undefined reference to `speex_echo_ctl'
/arm/linphone-1.7.1/mediastreamer2/src/.libs/libmediastreamer.so.0: undefined reference to `speex_preprocess_ctl'
/arm/linphone-1.7.1/mediastreamer2/src/.libs/libmediastreamer.so.0: undefined reference to `speex_preprocess_state_init'
/arm/linphone-1.7.1/mediastreamer2/src/.libs/libmediastreamer.so.0: undefined reference to `speex_echo_state_destroy'
/arm/linphone-1.7.1/mediastreamer2/src/.libs/libmediastreamer.so.0: undefined reference to `speex_preprocess'
/arm/linphone-1.7.1/mediastreamer2/src/.libs/libmediastreamer.so.0: undefined reference to `speex_echo_cancel'
/arm/linphone-1.7.1/mediastreamer2/src/.libs/libmediastreamer.so.0: undefined reference to `speex_echo_state_init'
/arm/linphone-1.7.1/mediastreamer2/src/.libs/libmediastreamer.so.0: undefined reference to `speex_preprocess_state_destroy'
collect2: ld returned 1 exit status
make[2]: *** [linphonec] 错误 1
make[2]: Leaving directory `/arm/linphone-1.7.1/console'
make[1]: *** [all-recursive] 错误 1
make[1]: Leaving directory `/arm/linphone-1.7.1'
make: *** [all] 错误 2
[root@localhost linphone-1.7.1]#

缺个什么库文件？

speex 我也装了
但是出现这些 没定义的 真的不知道该如何弄了