From 4f921362319586e572e82cc851495cf5e9bb94e8 Mon Sep 17 00:00:00 2001
From: Eoin Clerkin <e.clerkin@gsi.de>
Date: Thu, 5 Oct 2023 15:47:44 +0200
Subject: [PATCH] TGeoManager and TGeoMatrix as declarations only.

---
 core/base/utils/CbmGeometryUtils.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/core/base/utils/CbmGeometryUtils.h b/core/base/utils/CbmGeometryUtils.h
index a43cd1cfd9..aed9e128b8 100644
--- a/core/base/utils/CbmGeometryUtils.h
+++ b/core/base/utils/CbmGeometryUtils.h
@@ -3,10 +3,11 @@
    Authors: Florian Uhlig [committer], Eoin Clerkin */
 
 #include "Rtypes.h"
-#include "TGeoManager.h"
 
 class TGeoMatrix;
 class TGeoVolume;
+class TGeoManager;
+class TGeoMedium;
 class FairModule;
 class TString;
 
-- 
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