WL #1034 (Internal CRON) post-push update

- fix compile failure on QNX and FreeBSD


sql/event_executor.cc:
  time_t and my_time_t seem have the same length so cast
  in tztime.cc it's already done this way.
  Precautionary check at runtime about the sizes of my_time_t and time_t
sql/event_timed.cc:
  do time_t* cast to satisfy compilers on various platforms
  (QNX, FreeBSD)

sql/event_executor.cc

@@ -183,13 +183,20 @@ event_executor_main(void *arg)
 
   // needs to call my_thread_init(), otherwise we get a coredump in DBUG_ stuff
   my_thread_init();
+
+  if (sizeof(my_time_t) != sizeof(time_t))
+  {
+    sql_print_error("sizeof(my_time_t) != sizeof(time_t) ."
+                    "The scheduler will not work correctly. Stopping.");
+    goto err_no_thd;
+  }
   
   //TODO Andrey: Check for NULL
   if (!(thd = new THD)) // note that contructor of THD uses DBUG_ !
   {
     sql_print_error("Cannot create THD for event_executor_main");
     goto err_no_thd;
-  }    
+  }
   thd->thread_stack = (char*)&thd; // remember where our stack is
   
   pthread_detach_this_thread();
@@ -275,7 +282,7 @@ event_executor_main(void *arg)
       }
         
       DBUG_PRINT("evex main thread",("computing time to sleep till next exec"));
-      time(&now);
+      time((time_t *)&now);
       my_tz_UTC->gmt_sec_to_TIME(&time_now, now);
       t2sleep= evex_time_diff(&et->execute_at, &time_now);
       VOID(pthread_mutex_unlock(&LOCK_event_arrays));

sql/event_timed.cc

@@ -537,7 +537,7 @@ event_timed::compute_next_execution_time()
     }
     goto ret;
   }
-  time(&now);
+  time((time_t *)&now);
   my_tz_UTC->gmt_sec_to_TIME(&time_now, now);
 /*
   sql_print_information("[%s.%s]", dbname.str, name.str);
@@ -703,7 +703,7 @@ event_timed::mark_last_executed()
   TIME time_now;
   my_time_t now;
 
-  time(&now);
+  time((time_t *)&now);
   my_tz_UTC->gmt_sec_to_TIME(&time_now, now);
 
   last_executed= time_now; // was execute_at