diff --git a/common/font/stroke_font.cpp b/common/font/stroke_font.cpp
index 7084325ebb..15390b7783 100644
--- a/common/font/stroke_font.cpp
+++ b/common/font/stroke_font.cpp
@@ -61,7 +61,8 @@ std::vector<BOX2D>*                 g_defaultFontGlyphBoundingBoxes;
 
 STROKE_FONT::STROKE_FONT() :
         m_glyphs( nullptr ),
-        m_glyphBoundingBoxes( nullptr )
+        m_glyphBoundingBoxes( nullptr ),
+        m_maxGlyphWidth( 0.0 )
 {
 }
 
diff --git a/gerbview/widgets/gerbview_layer_widget.cpp b/gerbview/widgets/gerbview_layer_widget.cpp
index 7031179cce..38189d4bb4 100644
--- a/gerbview/widgets/gerbview_layer_widget.cpp
+++ b/gerbview/widgets/gerbview_layer_widget.cpp
@@ -225,7 +225,7 @@ void GERBER_LAYER_WIDGET::onPopupSelection( wxCommandEvent& event )
     case ID_LAYER_MOVE_DOWN:
         layer = m_frame->GetActiveLayer();
 
-        if( layer < ( GetImagesList()->GetLoadedImageCount() - 1 ) )
+        if( layer < ( (int)GetImagesList()->GetLoadedImageCount() - 1 ) )
         {
             m_frame->RemapLayers( GetImagesList()->SwapImages( layer, layer + 1 ) );
             m_frame->SetActiveLayer( layer + 1 );
diff --git a/pcbnew/teardrop/teardrop.cpp b/pcbnew/teardrop/teardrop.cpp
index 83d8ec3ff8..4acdc3f563 100644
--- a/pcbnew/teardrop/teardrop.cpp
+++ b/pcbnew/teardrop/teardrop.cpp
@@ -193,7 +193,7 @@ int TEARDROP_MANAGER::SetTeardrops( BOARD_COMMIT* aCommitter,
     if( count || removed_cnt || track2trackCount )
     {
         ZONE_FILLER filler( m_board, aCommitter );
-        filler.Fill( m_board->Zones() );
+        (void)filler.Fill( m_board->Zones() );
 
         if( aCommitter )
             aCommitter->Push( _( "Add teardrops" ) );
@@ -389,7 +389,7 @@ int TEARDROP_MANAGER::RemoveTeardrops( BOARD_COMMIT* aCommitter, bool aCommitAft
     if( count )
     {
         ZONE_FILLER filler( m_board, aCommitter );
-        filler.Fill( m_board->Zones() );
+        (void)filler.Fill( m_board->Zones() );
 
         if( aCommitter && aCommitAfterRemove )
             aCommitter->Push( _( "Remove teardrops" ) );
diff --git a/pcbnew/teardrop/teardrop_utils.cpp b/pcbnew/teardrop/teardrop_utils.cpp
index 33155a8030..288601bc31 100644
--- a/pcbnew/teardrop/teardrop_utils.cpp
+++ b/pcbnew/teardrop/teardrop_utils.cpp
@@ -402,7 +402,8 @@ bool TEARDROP_MANAGER::ComputePointsOnPadVia( TEARDROP_PARAMETERS* aCurrParams,
 {
     // Compute the 2 anchor points on pad/via of the teardrop shape
 
-    PAD* pad = dynamic_cast<PAD*>( aViaPad.m_Parent );
+    PAD* pad = ( aViaPad.m_Parent->Type() == PCB_PAD_T ) ? static_cast<PAD*>(aViaPad.m_Parent)
+                                                         : nullptr;
     SHAPE_POLY_SET c_buffer;
 
     // aHeightRatio is the factor to calculate the aViaPad teardrop prefered height
@@ -428,7 +429,7 @@ bool TEARDROP_MANAGER::ComputePointsOnPadVia( TEARDROP_PARAMETERS* aCurrParams,
         TransformCircleToPolygon( c_buffer, aViaPad.m_Pos, aViaPad.m_Width/2 ,
                                   ARC_LOW_DEF, ERROR_INSIDE, 16 );
     }
-    else
+    else    // Only PADS can have a not round shape
     {
         wxASSERT( pad );
         force_clip_shape = true;