Convert ignoreUnused to [[maybe_unused]]

modules/juce_data_structures/juce_data_structures.cpp

@@ -39,6 +39,7 @@
 #include "values/juce_ValueTreeSynchroniser.cpp"
 #include "values/juce_CachedValue.cpp"
 #include "undomanager/juce_UndoManager.cpp"
+#include "undomanager/juce_UndoableAction.cpp"
 #include "app_properties/juce_ApplicationProperties.cpp"
 #include "app_properties/juce_PropertiesFile.cpp"
 

modules/juce_data_structures/undomanager/juce_UndoableAction.cpp

@@ -0,0 +1,31 @@
+/*
+  ==============================================================================
+
+   This file is part of the JUCE library.
+   Copyright (c) 2022 - Raw Material Software Limited
+
+   JUCE is an open source library subject to commercial or open-source
+   licensing.
+
+   By using JUCE, you agree to the terms of both the JUCE 7 End-User License
+   Agreement and JUCE Privacy Policy.
+
+   End User License Agreement: www.juce.com/juce-7-licence
+   Privacy Policy: www.juce.com/juce-privacy-policy
+
+   Or: You may also use this code under the terms of the GPL v3 (see
+   www.gnu.org/licenses).
+
+   JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
+   EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
+   DISCLAIMED.
+
+  ==============================================================================
+*/
+
+namespace juce
+{
+
+UndoableAction* UndoableAction::createCoalescedAction ([[maybe_unused]] UndoableAction* nextAction)  { return nullptr; }
+
+} // namespace juce

modules/juce_data_structures/undomanager/juce_UndoableAction.h

@@ -94,7 +94,7 @@ public:
 
         If it's not possible to merge the two actions, the method should return a nullptr.
     */
-    virtual UndoableAction* createCoalescedAction (UndoableAction* nextAction)  { ignoreUnused (nextAction); return nullptr; }
+    virtual UndoableAction* createCoalescedAction (UndoableAction* nextAction);
 };
 
 } // namespace juce