mysys/my_init.c:
  Fixed link error when compiling without thread support
sql/item_create.cc:
  Fixed compiler warning
sql/mysqld.cc:
  Fixed compile error on windows
sql/protocol.cc:
  Fixed compiler warning
sql/sql_class.cc:
  Fixed compiler warning
sql/sql_class.h:
  Fixed compiler warning
storage/myisam/mi_open.c:
  Fixed compiler warning
storage/myisammrg/ha_myisammrg.cc:
  Fixed compiler warning (shadow variable)