Merge epotemkin@bk-internal.mysql.com:/home/bk/mysql-5.0-opt

into  moonbone.local:/work/31048-bug-5.0-opt-mysql

sql/sql_select.cc

@@ -2332,6 +2332,11 @@ static ha_rows get_quick_record_count(THD *thd, SQL_SELECT *select,
 {
   int error;
   DBUG_ENTER("get_quick_record_count");
+#ifndef EMBEDDED_LIBRARY                      // Avoid compiler warning
+  char buff[STACK_BUFF_ALLOC];
+#endif
+  if (check_stack_overrun(thd, STACK_MIN_SIZE, buff))
+    DBUG_RETURN(0);                           // Fatal error flag is set
   if (select)
   {
     select->head=table;