/opt/libav-0.6.2/libavdevice/alsa-audio-common.c:110: undefined reference to `snd_strerror'
/opt/libav-0.6.2/libavdevice/alsa-audio-common.c:115: undefined reference to `snd_pcm_hw_params_set_channels'
/opt/libav-0.6.2/libavdevice/alsa-audio-common.c:117: undefined reference to `snd_strerror'
/opt/libav-0.6.2/libavdevice/alsa-audio-common.c:122: undefined reference to `snd_pcm_hw_params_get_buffer_size_max'
/opt/libav-0.6.2/libavdevice/alsa-audio-common.c:124: undefined reference to `snd_pcm_hw_params_set_buffer_size_near'
/opt/libav-0.6.2/libavdevice/alsa-audio-common.c:126: undefined reference to `snd_strerror'
/opt/libav-0.6.2/libavdevice/alsa-audio-common.c:131: undefined reference to `snd_pcm_hw_params_get_period_size_min'
/opt/libav-0.6.2/libavdevice/alsa-audio-common.c:132: undefined reference to `snd_pcm_hw_params_set_period_size_near'
/opt/libav-0.6.2/libavdevice/alsa-audio-common.c:134: undefined reference to `snd_strerror'
/opt/libav-0.6.2/libavdevice/alsa-audio-common.c:142: undefined reference to `snd_strerror'
/opt/libav-0.6.2/libavdevice/alsa-audio-common.c:147: undefined reference to `snd_pcm_hw_params_free'
make: Leaving directory `/home/jacky/workspace/Roarsoft/EasyPlayer-build-desktop'
/opt/libav-0.6.2/libavdevice/alsa-audio-common.c:153: undefined reference to `snd_pcm_hw_params_free'
/opt/libav-0.6.2/libavdevice/alsa-audio-common.c:155: undefined reference to `snd_pcm_close'
/usr/local/lib/libavdevice.a(alsa-audio-common.o): In function `ff_alsa_close':
/opt/libav-0.6.2/libavdevice/alsa-audio-common.c:163: undefined reference to `snd_pcm_close'