REDHAT6.5编译MYSQL5.6.19有以下警告

/tmp/mysql-5.6.19/sql/sql_planner.cc: In member function ‘void Optimize_table_order::best_access_path(JOIN_TAB*, table_map, uint, bool, double, POSITION*, POSITION*)’:
/tmp/mysql-5.6.19/sql/sql_planner.cc:431: warning: ‘loose_scan_opt.Loose_scan_opt::best_loose_scan_start_key’ may be used uninitialized in this function
/tmp/mysql-5.6.19/sql/sql_planner.cc:431: warning: ‘loose_scan_opt.Loose_scan_opt::best_max_loose_keypart’ may be used uninitialized in this function
/tmp/mysql-5.6.19/sql/sql_planner.cc:431: warning: ‘loose_scan_opt.Loose_scan_opt::best_loose_scan_records’ may be used uninitialized in this function
/tmp/mysql-5.6.19/sql/sql_planner.cc:431: warning: ‘loose_scan_opt.Loose_scan_opt::best_loose_scan_key’ may be used uninitialized in this function
/tmp/mysql-5.6.19/sql/sql_planner.cc:431: warning: ‘loose_scan_opt.Loose_scan_opt::quick_max_loose_keypart’ may be used uninitialized in this function



/tmp/mysql-5.6.19/sql/sql_planner.cc: In member function ‘void Optimize_table_order::best_access_path(JOIN_TAB*, table_map, uint, bool, double, POSITION*, POSITION*)’:
/tmp/mysql-5.6.19/sql/sql_planner.cc:431: warning: ‘loose_scan_opt.Loose_scan_opt::best_loose_scan_start_key’ may be used uninitialized in this function
/tmp/mysql-5.6.19/sql/sql_planner.cc:431: warning: ‘loose_scan_opt.Loose_scan_opt::best_max_loose_keypart’ may be used uninitialized in this function
/tmp/mysql-5.6.19/sql/sql_planner.cc:431: warning: ‘loose_scan_opt.Loose_scan_opt::best_loose_scan_records’ may be used uninitialized in this function
/tmp/mysql-5.6.19/sql/sql_planner.cc:431: warning: ‘loose_scan_opt.Loose_scan_opt::best_loose_scan_key’ may be used uninitialized in this function
/tmp/mysql-5.6.19/sql/sql_planner.cc:431: warning: ‘loose_scan_opt.Loose_scan_opt::quick_max_loose_keypart’ may be used uninitialized in this function

如何处理呢????有待整理。