/*D
   MPIX_Threadcomm_free - free a thread communicator (outside thread parallel regions)

Synopsis:
.vb
int MPIX_Threadcomm_free(MPI_Comm *threadcomm)
.ve

Input/Output Parameters:
. threadcomm - thread communicator (handle)

.N ThreadSafe

.N Fortran

.N Errors
.N MPI_SUCCESS
.N MPI_ERR_COMM
.N MPI_ERR_OTHER

.seealso: MPIX_Threadcomm_init, MPIX_Threadcomm_start, MPIX_Threadcomm_finish
D*/

