diff --git a/samples/widgets/bmpcombobox.cpp b/samples/widgets/bmpcombobox.cpp
index bf7e7070a2..92df5cb2b1 100644
--- a/samples/widgets/bmpcombobox.cpp
+++ b/samples/widgets/bmpcombobox.cpp
@@ -554,10 +554,6 @@ void BitmapComboBoxWidgetsPage::OnButtonInsert(wxCommandEvent& WXUNUSED(event))
         m_textInsert->SetValue(wxString::Format("test item %u", ++s_item));
     }
 
-    int sel = m_combobox->GetSelection();
-    if ( sel == wxNOT_FOUND )
-        sel = m_combobox->GetCount();
-
     m_combobox->Insert(s, wxNullBitmap, m_combobox->GetSelection());
 }
 
diff --git a/src/aui/auibar.cpp b/src/aui/auibar.cpp
index f31bb456a9..1e7a55062f 100644
--- a/src/aui/auibar.cpp
+++ b/src/aui/auibar.cpp
@@ -162,10 +162,7 @@ void wxAuiGenericToolBarArt::UpdateColoursFromSystem()
 {
     m_baseColour = GetBaseColor();
     m_highlightColour = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT);
-    wxColor darker1Colour = m_baseColour.ChangeLightness(85);
-    wxColor darker2Colour = m_baseColour.ChangeLightness(75);
     wxColor darker3Colour = m_baseColour.ChangeLightness(60);
-    wxColor darker4Colour = m_baseColour.ChangeLightness(50);
     wxColor darker5Colour = m_baseColour.ChangeLightness(40);
 
     int pen_width = wxWindow::FromDIP(1, NULL);
diff --git a/src/aui/auibook.cpp b/src/aui/auibook.cpp
index 0ad649e50f..268991d650 100644
--- a/src/aui/auibook.cpp
+++ b/src/aui/auibook.cpp
@@ -791,11 +791,7 @@ bool wxAuiTabContainer::IsTabVisible(int tabPage, int tabOffset, wxDC* dc, wxWin
     if (offset == 0)
         offset += m_art->GetIndentSize();
 
-    wxRect active_rect;
-
     wxRect rect = m_rect;
-    rect.y = 0;
-    rect.height = m_rect.height;
 
     // See if the given page is visible at the given tab offset (effectively scroll position)
     for (i = tabOffset; i < page_count; ++i)
@@ -803,7 +799,6 @@ bool wxAuiTabContainer::IsTabVisible(int tabPage, int tabOffset, wxDC* dc, wxWin
         wxAuiNotebookPage& page = m_pages.Item(i);
         wxAuiTabContainerButton& tab_button = m_tabCloseButtons.Item(i);
 
-        rect.x = offset;
         rect.width = m_rect.width - right_buttons_width - offset - wnd->FromDIP(2);
 
         if (rect.width <= 0)
diff --git a/src/aui/dockart.cpp b/src/aui/dockart.cpp
index 7168307302..c5d04e1efd 100644
--- a/src/aui/dockart.cpp
+++ b/src/aui/dockart.cpp
@@ -751,10 +751,7 @@ void wxAuiDefaultDockArt::DrawPaneButton(wxDC& dc,
 
     wxRect rect = _rect;
 
-    int old_y = rect.y;
     rect.y = rect.y + (rect.height/2) - (bmp.GetScaledHeight()/2);
-    rect.height = old_y + rect.height - rect.y - 1;
-
 
     if (button_state == wxAUI_BUTTON_STATE_PRESSED)
     {
diff --git a/src/aui/framemanager.cpp b/src/aui/framemanager.cpp
index 6c20bea464..db245edd4b 100644
--- a/src/aui/framemanager.cpp
+++ b/src/aui/framemanager.cpp
@@ -1726,17 +1726,14 @@ void wxAuiManager::GetPanePositionsAndSizes(wxAuiDockInfo& dock,
     if (action_pane == -1)
         return;
 
-    offset = 0;
     for (pane_i = action_pane-1; pane_i >= 0; --pane_i)
     {
         int amount = positions[pane_i+1] - (positions[pane_i] + sizes[pane_i]);
 
         if (amount >= 0)
-            offset += amount;
+            ;
         else
             positions[pane_i] -= -amount;
-
-        offset += sizes[pane_i];
     }
 
     // if the dock mode is fixed, make sure none of the panes
diff --git a/src/common/zipstrm.cpp b/src/common/zipstrm.cpp
index a14bd674ef..cd72d411d7 100644
--- a/src/common/zipstrm.cpp
+++ b/src/common/zipstrm.cpp
@@ -1073,7 +1073,6 @@ bool wxZipEntry::LoadExtraInfo(const char* extraData, wxUint16 extraLen, bool lo
         // promoted to int, which has range large enough to deal with any value
         // of the field length.
         extraData += fieldLen + 4;
-        extraLen -= fieldLen + 4;
     }
 
     // extraInfo had unknown format
diff --git a/src/generic/dragimgg.cpp b/src/generic/dragimgg.cpp
index 270717a63b..9de2d1c401 100644
--- a/src/generic/dragimgg.cpp
+++ b/src/generic/dragimgg.cpp
@@ -211,7 +211,6 @@ bool wxGenericDragImage::BeginDrag(const wxPoint& hotspot,
     // dragged.
 
     wxSize clientSize;
-    wxPoint pt;
     if (!m_fullScreen)
     {
         clientSize = window->GetClientSize();
@@ -225,7 +224,6 @@ bool wxGenericDragImage::BeginDrag(const wxPoint& hotspot,
         clientSize.x = w; clientSize.y = h;
         if (rect)
         {
-            pt.x = m_boundingRect.x; pt.y = m_boundingRect.y;
             clientSize.x = m_boundingRect.width; clientSize.y = m_boundingRect.height;
         }
         else