While working on MariaDB on HP-UX we noticed an inconsistency involving the type of enum arguments. In init_variables and init_one_value (mysys/my_getopt.c), ENUM options are treated as unsigned longs but the enum arguments are actually declared as uint instead of ulong. While this doesn't matter in 32 bit mode when int's and longs's are the same size, it can cause problems in 64 bit mode when long's are 64 bits and int's 32 bits. We found 4 variables that we think should be ulong instead of uint: plugin_maturity plugin_maturity_map thread_handling delay_key_write_options We also changed the value field in the sys_var_enum class (sql/set_var.h) from a uint pointer to a ulong pointer and changed the sys_var_enum and sys_var_enum_const constructors to use a ulong pointer argument for value_arg to make everything consistent. I suppose init_variables and init_one_value could be changed to treat ENUM's as uint instead of ulong but the use of ulong seemed to be intentional so we didn't try making that change as an alternative fix. Is this a change that should be made in the official MariaDB sources? Steve Ellcey sje@cup.hp.com