pthread.o: In function `avcodec_thread_init':
pthread.c:(.text+0x1f0): multiple definition of `avcodec_thread_init'
utils.o:utils.c:(.text+0x650): first defined here
collect2: ld returned 1 exit status
make[2]: *** [libmythavcodec-0.21.so.0.21.0] Error 1
make[2]: Leaving directory `/home/opentrinity/mythtv_build/mythtv/libs/libavcodec'
make[1]: *** [sub-libavcodec] Error 2
make[1]: Leaving directory `/home/opentrinity/mythtv_build/mythtv/libs'
make: *** [sub-libs] Error 2