Move the mpi.h include outside of the __cplusplus check.
Move the mpi.h include outside of the __cplusplus check.

carothersc/ROSS,laprej/ROSS-CXX,laprej/ROSS-CXX,carothersc/ROSS,JohnPJenkins/ROSS,carothersc/ROSS,laprej/ROSS-CXX,JohnPJenkins/ROSS,JohnPJenkins/ROSS