diff --git a/src/Gui/TaskCSysDragger.cpp b/src/Gui/TaskCSysDragger.cpp
index c59a9f3f89..27ef9d9e49 100644
--- a/src/Gui/TaskCSysDragger.cpp
+++ b/src/Gui/TaskCSysDragger.cpp
@@ -120,7 +120,8 @@ TaskTransform::~TaskTransform()
     savePreferences();
 }
 
-void TaskTransform::dragStartCallback(void* data, SoDragger*)
+void TaskTransform::dragStartCallback([[maybe_unused]] void* data,
+                                      [[maybe_unused]] SoDragger* dragger)
 {
     // This is called when a manipulator is about to manipulating
     if (firstDrag) {
@@ -130,7 +131,7 @@ void TaskTransform::dragStartCallback(void* data, SoDragger*)
     }
 }
 
-void TaskTransform::dragMotionCallback(void* data, SoDragger* dragger)
+void TaskTransform::dragMotionCallback(void* data, [[maybe_unused]] SoDragger* dragger)
 {
     auto task = static_cast<TaskTransform*>(data);
 
@@ -557,7 +558,7 @@ void TaskTransform::onPickTransformOrigin()
                                                           : SelectionMode::None);
 }
 
-void TaskTransform::onPlacementModeChange(int index)
+void TaskTransform::onPlacementModeChange([[maybe_unused]] int index)
 {
     placementMode = ui->placementComboBox->currentData().value<PlacementMode>();
 
diff --git a/src/Gui/ViewProviderDragger.cpp b/src/Gui/ViewProviderDragger.cpp
index 2484ee197e..50647c8f9f 100644
--- a/src/Gui/ViewProviderDragger.cpp
+++ b/src/Gui/ViewProviderDragger.cpp
@@ -217,7 +217,7 @@ void ViewProviderDragger::setEditViewer(Gui::View3DInventorViewer* viewer, int M
     }
 }
 
-void ViewProviderDragger::unsetEditViewer(Gui::View3DInventorViewer* viewer)
+void ViewProviderDragger::unsetEditViewer([[maybe_unused]] Gui::View3DInventorViewer* viewer)
 {}
 
 void ViewProviderDragger::dragStartCallback(void* data, [[maybe_unused]] SoDragger* d)
@@ -229,7 +229,7 @@ void ViewProviderDragger::dragStartCallback(void* data, [[maybe_unused]] SoDragg
     vp->csysDragger->clearIncrementCounts();
 }
 
-void ViewProviderDragger::dragFinishCallback(void* data, SoDragger* d)
+void ViewProviderDragger::dragFinishCallback(void* data, [[maybe_unused]] SoDragger* d)
 {
     // This is called when a manipulator has done manipulating
     auto vp = static_cast<ViewProviderDragger*>(data);
@@ -240,7 +240,7 @@ void ViewProviderDragger::dragFinishCallback(void* data, SoDragger* d)
     vp->updatePlacementFromDragger();
 }
 
-void ViewProviderDragger::dragMotionCallback(void* data, SoDragger* d)
+void ViewProviderDragger::dragMotionCallback(void* data, [[maybe_unused]] SoDragger* d)
 {
     auto vp = static_cast<ViewProviderDragger*>(data);
 
diff --git a/src/Gui/ViewProviderLink.cpp b/src/Gui/ViewProviderLink.cpp
index 3e0d0b5244..9ee4e070cc 100644
--- a/src/Gui/ViewProviderLink.cpp
+++ b/src/Gui/ViewProviderLink.cpp
@@ -1850,8 +1850,6 @@ void ViewProviderLink::updateDataPrivate(App::LinkBaseExtension *ext, const App:
     }else if(prop == ext->getPlacementProperty() || prop == ext->getLinkPlacementProperty()) {
         auto propLinkPlacement = ext->getLinkPlacementProperty();
         if(!propLinkPlacement || propLinkPlacement == prop) {
-            const auto &pla = static_cast<const App::PropertyPlacement*>(prop)->getValue();
-            // ViewProviderGeometryObject::updateTransform(pla, pcTransform);
             const auto &v = ext->getScaleVector();
             if(canScale(v))
                 pcTransform->scaleFactor.setValue(v.x,v.y,v.z);
diff --git a/src/Mod/Part/App/PartFeature.cpp b/src/Mod/Part/App/PartFeature.cpp
index bb4ca977d8..956468f18d 100644
--- a/src/Mod/Part/App/PartFeature.cpp
+++ b/src/Mod/Part/App/PartFeature.cpp
@@ -82,8 +82,6 @@
 using namespace Part;
 namespace sp = std::placeholders;
 
-constexpr const int MaterialPrecision = 6;
-
 FC_LOG_LEVEL_INIT("Part",true,true)
 
 PROPERTY_SOURCE(Part::Feature, App::GeoFeature)