Merge mysql.com:/home/stewart/Documents/MySQL/4.1/bug18881

into  mysql.com:/home/stewart/Documents/MySQL/5.1/merge

storage/ndb/src/kernel/vm/Emulator.cpp

@@ -114,6 +114,7 @@ EmulatorData::destroy(){
     delete theSimBlockList; theSimBlockList = 0;
   if(m_socket_server)
     delete m_socket_server; m_socket_server = 0;
+  NdbMutex_Destroy(theShutdownMutex);
   if (m_mem_manager)
     delete m_mem_manager; m_mem_manager = 0;