pub unsafe fn DefineCustomEnumVariable(
arg_name: *const c_char,
arg_short_desc: *const c_char,
arg_long_desc: *const c_char,
arg_valueAddr: *mut c_int,
arg_bootValue: c_int,
arg_options: *const config_enum_entry,
arg_context: Type,
arg_flags: c_int,
arg_check_hook: GucEnumCheckHook,
arg_assign_hook: GucEnumAssignHook,
arg_show_hook: GucShowHook,
)