#include <mach/host_notify.h> also included by
<mach/mach.h>mach/host_notify.h
macroHOST_NOTIFY_CALENDAR_CHANGE
#define HOST_NOTIFY_CALENDAR_CHANGE 0
macroHOST_NOTIFY_CALENDAR_SET
#define HOST_NOTIFY_CALENDAR_SET 1
macroHOST_NOTIFY_TYPE_MAX
#define HOST_NOTIFY_TYPE_MAX 1
macroHOST_CALENDAR_CHANGED_REPLYID
#define HOST_CALENDAR_CHANGED_REPLYID 950
macroHOST_CALENDAR_SET_REPLYID
#define HOST_CALENDAR_SET_REPLYID 951