Change EventType to JackEventType to avoid a name conflit on OSX

git-svn-id: svn+ssh://jackaudio.org/trunk/jack@879 0c269be4-1314-0410-8aa9-9f06e86f4224

jack/internal.h

@@ -160,10 +160,10 @@ typedef enum  {
   XRun,
   StartFreewheel,
   StopFreewheel
-} EventType;
+} JackEventType;
 
 typedef struct {
-    EventType type;
+    JackEventType type;
     union {
 	uint32_t n;
 	jack_port_id_t port_id;