From 5762608403d6bc09d9f3527c17f46df3b2aa7d24 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?V=C3=ADt=20Ku=C4=8Dera?=
 <26327373+vkucera@users.noreply.github.com>
Date: Mon, 20 Apr 2026 13:07:31 +0200
Subject: [PATCH] Fix includes

---
 ALICE3/Core/FlatLutEntry.cxx     |  6 ++++++
 ALICE3/Core/FlatLutEntry.h       |  1 +
 ALICE3/Core/FlatLutWriter.cxx    | 12 ++++++------
 ALICE3/Core/FlatLutWriter.h      |  7 +++++++
 ALICE3/Core/FlatTrackSmearer.cxx | 11 +++++++++++
 ALICE3/Core/FlatTrackSmearer.h   |  4 ++++
 6 files changed, 35 insertions(+), 6 deletions(-)

diff --git a/ALICE3/Core/FlatLutEntry.cxx b/ALICE3/Core/FlatLutEntry.cxx
index 1e0c6cef902..5110e9bff4c 100644
--- a/ALICE3/Core/FlatLutEntry.cxx
+++ b/ALICE3/Core/FlatLutEntry.cxx
@@ -14,7 +14,13 @@
 #include <Framework/Logger.h>
 #include <Framework/RuntimeError.h>
 
+#include <cmath>
+#include <cstddef>
+#include <cstdint>
 #include <cstring>
+#include <fstream>
+#include <ios>
+#include <span>
 
 namespace o2::delphes
 {
diff --git a/ALICE3/Core/FlatLutEntry.h b/ALICE3/Core/FlatLutEntry.h
index decde671a06..7786523170b 100644
--- a/ALICE3/Core/FlatLutEntry.h
+++ b/ALICE3/Core/FlatLutEntry.h
@@ -13,6 +13,7 @@
 #define ALICE3_CORE_FLATLUTENTRY_H_
 
 #include <cmath>
+#include <cstddef>
 #include <cstdint>
 #include <fstream>
 #include <span>
diff --git a/ALICE3/Core/FlatLutWriter.cxx b/ALICE3/Core/FlatLutWriter.cxx
index 3a4df00ff00..c63c1c96dd3 100644
--- a/ALICE3/Core/FlatLutWriter.cxx
+++ b/ALICE3/Core/FlatLutWriter.cxx
@@ -9,11 +9,11 @@
 // granted to it by virtue of its status as an Intergovernmental Organization
 // or submit itself to any jurisdiction.
 
-#include "ALICE3/Core/FlatLutWriter.h"
-
-#include "TrackUtilities.h"
+#include "FlatLutWriter.h"
 
+#include "ALICE3/Core/FlatLutEntry.h"
 #include "ALICE3/Core/FlatTrackSmearer.h"
+#include "ALICE3/Core/TrackUtilities.h"
 
 #include <Framework/Logger.h>
 #include <ReconstructionDataFormats/Track.h>
@@ -22,7 +22,6 @@
 #include <TDatabasePDG.h>
 #include <TGraph.h>
 #include <TLorentzVector.h>
-#include <TMatrixD.h>
 #include <TMatrixDSymEigen.h>
 #include <TMatrixDSymfwd.h>
 #include <TMatrixDfwd.h>
@@ -30,9 +29,10 @@
 #include <TString.h>
 #include <TVectorDfwd.h>
 
-#include <Rtypes.h>
-
+#include <cmath>
 #include <cstdlib>
+#include <fstream>
+#include <string>
 
 using namespace o2::delphes;
 
diff --git a/ALICE3/Core/FlatLutWriter.h b/ALICE3/Core/FlatLutWriter.h
index f2240b160c4..fd29a174c86 100644
--- a/ALICE3/Core/FlatLutWriter.h
+++ b/ALICE3/Core/FlatLutWriter.h
@@ -14,6 +14,13 @@
 
 #include "ALICE3/Core/FastTracker.h"
 #include "ALICE3/Core/FlatLutEntry.h"
+
+#include <ReconstructionDataFormats/PID.h>
+
+#include <TGraph.h>
+
+#include <cstddef>
+#include <string>
 namespace o2::fastsim
 {
 using lutEntry_t = o2::delphes::lutEntry_t;
diff --git a/ALICE3/Core/FlatTrackSmearer.cxx b/ALICE3/Core/FlatTrackSmearer.cxx
index db56f8ab8d8..d90c8a8997b 100644
--- a/ALICE3/Core/FlatTrackSmearer.cxx
+++ b/ALICE3/Core/FlatTrackSmearer.cxx
@@ -11,12 +11,23 @@
 
 #include "FlatTrackSmearer.h"
 
+#include "ALICE3/Core/FlatLutEntry.h"
 #include "ALICE3/Core/GeometryContainer.h"
 
+#include <CommonConstants/PhysicsConstants.h>
+#include <Framework/Logger.h>
 #include <Framework/RuntimeError.h>
 
 #include <TRandom.h>
 
+#include <cmath>
+#include <cstddef>
+#include <cstdint>
+#include <cstdlib>
+#include <fstream>
+#include <span>
+#include <string>
+
 namespace o2::delphes
 {
 int TrackSmearer::getIndexPDG(int pdg)
diff --git a/ALICE3/Core/FlatTrackSmearer.h b/ALICE3/Core/FlatTrackSmearer.h
index 90ecc6feab5..e7943d7c1c0 100644
--- a/ALICE3/Core/FlatTrackSmearer.h
+++ b/ALICE3/Core/FlatTrackSmearer.h
@@ -17,6 +17,10 @@
 #include <CCDB/BasicCCDBManager.h>
 #include <ReconstructionDataFormats/Track.h>
 
+#include <cstddef>
+#include <cstdint>
+#include <span>
+
 namespace o2::delphes
 {
 /**