[root@server4 ffmpeg]# make make -C libavutil all make[1]: Entering directory `/usr/local/src/ffmpeg/libavutil' make[1]: Nothing to be done for `all'. make[1]: Leaving directory `/usr/local/src/ffmpeg/libavutil' make -C libavcodec all make[1]: Entering directory `/usr/local/src/ffmpeg/libavcodec' make[1]: Nothing to be done for `all'. make[1]: Leaving directory `/usr/local/src/ffmpeg/libavcodec' make -C libavformat all make[1]: Entering directory `/usr/local/src/ffmpeg/libavformat' make[1]: Nothing to be done for `all'. make[1]: Leaving directory `/usr/local/src/ffmpeg/libavformat' make -C libavdevice all make[1]: Entering directory `/usr/local/src/ffmpeg/libavdevice' make[1]: Nothing to be done for `all'. make[1]: Leaving directory `/usr/local/src/ffmpeg/libavdevice' : make -C libpostproc all : make -C libswscale all gcc -L"/usr/local/src/ffmpeg"/libavdevice -L"/usr/local/src/ffmpeg"/libavformat -L"/usr/local/src/ffmpeg"/libavcodec -L"/usr/local/src/ffmpeg"/libavutil -rdynamic -export-dynamic -Wl,--warn-common -Wl,--as-needed -Wl,-rpath-link,"/usr/local/src/ffmpeg"/libavcodec -Wl,-rpath-link,"/usr/local/src/ffmpeg"/libavformat -Wl,-rpath-link,"/usr/local/src/ffmpeg"/libavutil -Wl,-Bsymbolic -g -o ffmpeg_g ffmpeg.o cmdutils.o -lavdevice -lavformat -lavcodec -lavutil -lz -lm -lamrnb -lm -lamrwb -lm -ldl -ldl /usr/local/src/ffmpeg/libavcodec/libavcodec.so: undefined reference to `GP3VADxEncoder_Interface_Encode' /usr/local/src/ffmpeg/libavcodec/libavcodec.so: undefined reference to `VADxEncoder_Interface_init' /usr/local/src/ffmpeg/libavcodec/libavcodec.so: undefined reference to `GP3Decoder_Interface_Decode' collect2: ld returned 1 exit status make: *** [ffmpeg_g] Error 1