MFC r277970: Check for the cycle in the chain of dependency for priority-inheritance mutexes.
MFC r277970:
Check for the cycle in the chain of dependency for priority-inheritance
mutexes.

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase