in: http://www.freeswitch.org/docs/group__switch__thread__mutex.html

the #defines at the top are:

#define SWITCH_MUTEX_DEFAULT 0x0
#define SWITCH_MUTEX_NESTED 0x1
#define SWITCH_MUTEX_UNNESTED 0x2


and in the discussion below switch_mutex_init throw a THREADED in there..

as in:

           SWITCH_THREAD_MUTEX_DEFAULT platform-optimal lock behavior.
           SWITCH_THREAD_MUTEX_NESTED enable nested (recursive) locks.
           SWITCH_THREAD_MUTEX_UNNESTED disable nested locks (non-recursive).

and in the warning too..

not a big deal.. just had me scratching my head trying to compile...