Additional forward declaration

diff --git a/STEER/STEER/AliAlignmentTracks.h b/STEER/STEER/AliAlignmentTracks.h
index 8524982cf0912f69b4e49bea468df51ccc79a5b7..2fde1bfdc21bbb58179f7a86bfb8082a0a56b3df 100644 (file)
--- a/STEER/STEER/AliAlignmentTracks.h
+++ b/STEER/STEER/AliAlignmentTracks.h
@@ -8,16 +8,20 @@
 // functionalities of the class.                                          *
 //*************************************************************************
 
-#include <TObject.h>
-
-#include "AliAlignObj.h"
-
 class TChain;
+class TSelector;
+class TFile;
+class TTree;
+class TArrayI;
 class AliTrackPointArray;
 class AliAlignObj;
 class AliTrackFitter;
 class AliTrackResiduals;
 
+#include <TObject.h>
+#include "AliAlignObj.h"
+
+
 class AliAlignmentTracks : public TObject {
 
  public: