From 8b8df77502a84d5821b6c2e161ec84e5e2f3a7ec Mon Sep 17 00:00:00 2001
From: Christoph Dinh <christoph.dinh@mne-cpp.org>
Date: Mon, 18 May 2026 15:21:52 +0200
Subject: [PATCH] mne_align: fix alias forward declarations for AcquiredPoints
 and PolhemusConnection

---
 src/applications/mne_align/align_3d_view.h | 4 ++--
 src/applications/mne_align/align_wizard.h  | 3 +--
 src/applications/mne_align/mne_align.h     | 5 +++--
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/applications/mne_align/align_3d_view.h b/src/applications/mne_align/align_3d_view.h
index d9cc17e4b8..0b7af3d0c0 100644
--- a/src/applications/mne_align/align_3d_view.h
+++ b/src/applications/mne_align/align_3d_view.h
@@ -54,6 +54,8 @@
 
 #include <memory>
 
+#include "acquired_points.h"
+
 //=============================================================================================================
 // FORWARD DECLARATIONS
 //=============================================================================================================
@@ -71,8 +73,6 @@ namespace MNELIB    { class MNEBem; }
 namespace MNEALIGN
 {
 
-class AcquiredPoints;
-
 //=============================================================================================================
 /**
  * @brief Camera focus mode for the 3-D viewer.
diff --git a/src/applications/mne_align/align_wizard.h b/src/applications/mne_align/align_wizard.h
index 9e97312693..51d53b1961 100644
--- a/src/applications/mne_align/align_wizard.h
+++ b/src/applications/mne_align/align_wizard.h
@@ -43,6 +43,7 @@
 //=============================================================================================================
 
 #include "acquired_points.h"
+#include "polhemus_connection.h"
 
 #include <utils/montage/standard_montage.h>
 
@@ -68,8 +69,6 @@ class QPushButton;
 namespace MNEALIGN
 {
 
-class PolhemusConnection;
-
 //=============================================================================================================
 /** @brief Identifies the five wizard steps. */
 enum class AlignStep {
diff --git a/src/applications/mne_align/mne_align.h b/src/applications/mne_align/mne_align.h
index 823df9da5a..5ebf646a9e 100644
--- a/src/applications/mne_align/mne_align.h
+++ b/src/applications/mne_align/mne_align.h
@@ -42,6 +42,9 @@
 #include <QMainWindow>
 #include <QPointer>
 
+#include "acquired_points.h"
+#include "polhemus_connection.h"
+
 //=============================================================================================================
 // FORWARD DECLARATIONS
 //=============================================================================================================
@@ -64,8 +67,6 @@ enum class AlignStep;
 
 class AlignWizard;
 class Align3DView;
-class AcquiredPoints;
-class PolhemusConnection;
 
 //=============================================================================================================
 /**