freeswitch v1.6 use speex codec error
<p>I have compiled freeswitch from branch v1.6 sourcecode ,when i use speex codec , freeswitch console :</p>

<p>2016-05-09 15:37:31.611965 [WARNING] switch_core_codec.c:721 Codec SPEEX Exists but not at the desired implementation. 16000hz 64ms 1ch
2016-05-09 15:37:31.611965 [ERR] switch_core_media.c:3025 Can't load codec?</p>