GCC 7 warning: this statement may fall through [-Wimplicit-fallthrough=]

mysys/ma_dyncol.c: In function 'mariadb_dyncol_val_double':

mysys/ma_dyncol.c:4033:7: warning: this statement may fall through [-Wimplicit-fallthrough=]

extra/my_print_defaults.c: In function 'get_one_option':

extra/my_print_defaults.c:131:7: warning: this statement may fall through [-Wimplicit-fallthrough=]

extra/my_print_defaults.c:136:7: warning: this statement may fall through [-Wimplicit-fallthrough=]

storage/connect/ha_connect.cc: In function 'char* GetListOption(PGLOBAL, const char*, const char*, const char*)':

storage/connect/ha_connect.cc:2550:35: warning: this statement may fall through [-Wimplicit-fallthrough=]

storage/connect/ha_connect.cc:2806:36: warning: this statement may fall through [-Wimplicit-fallthrough=]

storage/connect/ha_connect.cc:2922:15: warning: this statement may fall through [-Wimplicit-fallthrough=]

storage/connect/ha_connect.cc:2934:15: warning: this statement may fall through [-Wimplicit-fallthrough=]

storage/connect/ha_connect.cc:2941:15: warning: this statement may fall through [-Wimplicit-fallthrough=]

storage/connect/ha_connect.cc:4313:15: warning: this statement may fall through [-Wimplicit-fallthrough=]

storage/connect/ha_connect.cc:4338:15: warning: this statement may fall through [-Wimplicit-fallthrough=]

storage/connect/ha_connect.cc: In function 'int connect_assisted_discovery(handlerton*, THD*, TABLE_SHARE*, HA_CREATE_INFO*)':

storage/connect/ha_connect.cc:5515:13: warning: this statement may fall through [-Wimplicit-fallthrough=]

storage/connect/ha_connect.cc:6074:9: warning: this statement may fall through [-Wimplicit-fallthrough=]

storage/federated/ha_federated.cc:1403:38: warning: this statement may fall through [-Wimplicit-fallthrough=]

storage/federated/ha_federated.cc:1436:9: warning: this statement may fall through [-Wimplicit-fallthrough=]

storage/federatedx/ha_federatedx.cc:1322:36: warning: this statement may fall through [-Wimplicit-fallthrough=]

storage/federatedx/ha_federatedx.cc:1355:9: warning: this statement may fall through [-Wimplicit-fallthrough=]

storage/heap/hp_extra.c: In function 'heap_extra':

storage/heap/hp_extra.c:36:5: warning: this statement may fall through [-Wimplicit-fallthrough=]

storage/connect/plugutil.c: In function 'PlugInit':

storage/connect/filamap.cpp:350:5: warning: this statement may fall through [-Wimplicit-fallthrough=]

storage/connect/filamgz.cpp:1020:16: warning: this statement may fall through [-Wimplicit-fallthrough=]

storage/connect/json.cpp: In function 'JSON* ParseJson(PGLOBAL, char*, int, int*, bool*)':

storage/connect/json.cpp:152:9: warning: this statement may fall through [-Wimplicit-fallthrough=]

storage/connect/myutil.cpp: In function 'int MYSQLtoPLG(char*, char*)':

storage/connect/myutil.cpp:67:14: warning: this statement may fall through [-Wimplicit-fallthrough=]

storage/connect/myutil.cpp: In function 'int MYSQLtoPLG(int, char*)':

storage/connect/myutil.cpp:236:18: warning: this statement may fall through [-Wimplicit-fallthrough=]

storage/connect/myutil.cpp:224:7: warning: this statement may fall through [-Wimplicit-fallthrough=]

storage/connect/reldef.cpp:297:8: warning: this statement may fall through [-Wimplicit-fallthrough=]

storage/connect/reldef.cpp:339:19: warning: this statement may fall through [-Wimplicit-fallthrough=]

storage/connect/tabvir.cpp:171:21: warning: this statement may fall through [-Wimplicit-fallthrough=]

storage/connect/tabvir.cpp:177:21: warning: this statement may fall through [-Wimplicit-fallthrough=]

sql-common/client.c: In function 'mysql_read_default_options':

sql-common/client.c:1150:29: warning: this statement may fall through [-Wimplicit-fallthrough=]

storage/maria/ma_key_recover.c: In function '_ma_apply_redo_index':

storage/maria/ma_key_recover.c:1171:18: warning: this statement may fall through [-Wimplicit-fallthrough=]

client/mysql.cc: In function 'my_bool get_one_option(int, const my_option*, char*)':

client/mysql.cc:1893:14: warning: this statement may fall through [-Wimplicit-fallthrough=]

sql-common/client.c: In function 'mysql_read_default_options':

sql-common/client.c:1150:29: warning: this statement may fall through [-Wimplicit-fallthrough=]

sql/item_func.cc:863:23: warning: this statement may fall through [-Wimplicit-fallthrough=]

sql/log.cc:9402:9: warning: this statement may fall through [-Wimplicit-fallthrough=]

sql/sql_repl.cc: In function 'void mysql_binlog_send(THD*, char*, my_off_t, ushort)':

sql/sql_repl.cc:2663:9: warning: this statement may fall through [-Wimplicit-fallthrough=]