Pulled master and went to build OpenThread echo server and get a ton of the following:

../../../../../include/kernel.h:3021:20: warning: ‘k_msgq_get_attrs’ declared ‘static’ but never defined [-Wunused-function]

__syscall void  k_msgq_get_attrs(struct k_msgq *q, struct k_msgq_attrs *attrs);

Not sure what changed from the last time I built the sample.

David Leach