diff --git a/src/commands/cmd_palette_editor.cpp b/src/commands/cmd_palette_editor.cpp
index 3514337eb..47c1a8749 100644
--- a/src/commands/cmd_palette_editor.cpp
+++ b/src/commands/cmd_palette_editor.cpp
@@ -729,7 +729,6 @@ static void quantize_command(JWidget widget)
 
 static bool sliderRGB_change_hook(JWidget widget, void *data)
 {
-  Palette* palette = get_current_palette();
   int r = jslider_get_value(R_slider);
   int g = jslider_get_value(G_slider);
   int b = jslider_get_value(B_slider);
@@ -750,7 +749,6 @@ static bool sliderRGB_change_hook(JWidget widget, void *data)
 
 static bool sliderHSV_change_hook(JWidget widget, void *data)
 {
-  Palette* palette = get_current_palette();
   int h = jslider_get_value(H_slider);
   int s = jslider_get_value(S_slider);
   int v = jslider_get_value(V_slider);
@@ -795,7 +793,6 @@ static bool entryRGB_change_hook(JWidget widget, void *data)
 
 static bool entryHSV_change_hook(JWidget widget, void *data)
 {
-  Palette* palette = get_current_palette();
   int h = H_entry->getTextInt();
   int s = S_entry->getTextInt();
   int v = V_entry->getTextInt();
diff --git a/src/core/color.cpp b/src/core/color.cpp
index 094a84a65..ee2067d69 100644
--- a/src/core/color.cpp
+++ b/src/core/color.cpp
@@ -709,7 +709,7 @@ void color_to_formalstring(int imgtype, color_t color,
     switch (GET_COLOR_TYPE(color)) {
 
       case COLOR_TYPE_MASK:
-	uszprintf(buf, size, _("Mask"));
+	ustrncpy(buf, _("Mask"), size);
 	break;
 
       case COLOR_TYPE_RGB:
diff --git a/src/file/ase_format.cpp b/src/file/ase_format.cpp
index 0166edaad..abaffae7f 100644
--- a/src/file/ase_format.cpp
+++ b/src/file/ase_format.cpp
@@ -968,7 +968,7 @@ static void write_compressed_image(FILE* f, Image* image)
 
       int output_bytes = compressed.size() - zstream.avail_out;
       if (output_bytes > 0) {
-	if ((fwrite(&compressed[0], 1, output_bytes, f) != output_bytes)
+	if ((fwrite(&compressed[0], 1, output_bytes, f) != (size_t)output_bytes)
 	    || ferror(f))
 	  throw ase_exception("Error writing compressed image pixels.\n");
       }
diff --git a/src/jinete/jentry.cpp b/src/jinete/jentry.cpp
index 27332199c..47af4d170 100644
--- a/src/jinete/jentry.cpp
+++ b/src/jinete/jentry.cpp
@@ -523,6 +523,9 @@ static void entry_execute_cmd(JWidget widget, EntryCmd::Type cmd,
 
   switch (cmd) {
 
+    case EntryCmd::NoOp:
+      break;
+
     case EntryCmd::InsertChar:
       // delete the entire selection
       if (selbeg >= 0) {
diff --git a/src/jinete/jstream.cpp b/src/jinete/jstream.cpp
index 3e01474d8..fe8fcad41 100644
--- a/src/jinete/jstream.cpp
+++ b/src/jinete/jstream.cpp
@@ -81,7 +81,7 @@ static int stream_string_tell(JStream stream);
 
 JStream jstream_new(int size)
 {
-  JStream stream = (JStream)jmalloc0(MAX(size, sizeof(struct jstream)));
+  JStream stream = (JStream)jmalloc0(MAX(size, (int)sizeof(struct jstream)));
   if (!stream)
     return NULL;
 
diff --git a/src/jinete/themes/jstandard_theme.cpp b/src/jinete/themes/jstandard_theme.cpp
index 35afb8866..2f4fa988b 100644
--- a/src/jinete/themes/jstandard_theme.cpp
+++ b/src/jinete/themes/jstandard_theme.cpp
@@ -735,7 +735,7 @@ void jstandard_theme::draw_link_label(JWidget widget, JRect clip)
 
   if (widget->hasMouseOver()) {
     int w = jwidget_get_text_length(widget);
-    int h = jwidget_get_text_height(widget);
+    //int h = jwidget_get_text_height(widget);
 
     hline(ji_screen,
 	  widget->rc->x1, widget->rc->y2-1, widget->rc->x1+w-1, makecol(0, 0, 255));
diff --git a/src/modules/skinneable_theme.cpp b/src/modules/skinneable_theme.cpp
index b14993c56..7581dbb7a 100644
--- a/src/modules/skinneable_theme.cpp
+++ b/src/modules/skinneable_theme.cpp
@@ -841,7 +841,7 @@ void SkinneableTheme::draw_link_label(JWidget widget, JRect clip)
 
   if (widget->hasMouseOver()) {
     int w = jwidget_get_text_length(widget);
-    int h = jwidget_get_text_height(widget);
+    //int h = jwidget_get_text_height(widget);
 
     hline(ji_screen,
 	  widget->rc->x1, widget->rc->y2-1, widget->rc->x1+w-1, makecol(0, 0, 255));
diff --git a/src/raster/image_impl.h b/src/raster/image_impl.h
index 4131138ce..f006cbe2c 100644
--- a/src/raster/image_impl.h
+++ b/src/raster/image_impl.h
@@ -144,7 +144,7 @@ public:
   virtual void merge(const Image* src, int x, int y, int opacity, int blend_mode)
   {
     BLEND_COLOR blender = Traits::get_blender(blend_mode);
-    register int mask_color = src->mask_color;
+    register ase_uint32 mask_color = src->mask_color;
     Image* dst = this;
     address_t src_address;
     address_t dst_address;
diff --git a/src/raster/palette.cpp b/src/raster/palette.cpp
index 957492e43..a18f804ef 100644
--- a/src/raster/palette.cpp
+++ b/src/raster/palette.cpp
@@ -302,6 +302,9 @@ bool SortPalette::operator()(ase_uint32 c1, ase_uint32 c2)
 	  value1 = v1;
 	  value2 = v2;
 	  break;
+	default:
+	  ASSERT(false);
+	  break;
       }
       break;
     }
diff --git a/src/raster/rgbmap.cpp b/src/raster/rgbmap.cpp
index 289dc9960..85b649762 100644
--- a/src/raster/rgbmap.cpp
+++ b/src/raster/rgbmap.cpp
@@ -69,7 +69,7 @@ public:
 private:
   RGB_MAP* m_allegMap;
   gfxobj_id m_palette_id;
-  size_t m_modifications;
+  int m_modifications;
 };
 
 //////////////////////////////////////////////////////////////////////
diff --git a/src/raster/undo.cpp b/src/raster/undo.cpp
index 11ea7f462..36b0b4fe6 100644
--- a/src/raster/undo.cpp
+++ b/src/raster/undo.cpp
@@ -1808,7 +1808,7 @@ static UndoChunk* undo_chunk_new(UndoStream* stream, int type, int size)
 {
   UndoChunk* chunk;
 
-  ASSERT(size >= sizeof(UndoChunk));
+  ASSERT(size >= (int)sizeof(UndoChunk));
 
   chunk = (UndoChunk* )jmalloc0(size);
   if (!chunk)
diff --git a/src/recent_files.cpp b/src/recent_files.cpp
index 03d6627ab..6e3cd2204 100644
--- a/src/recent_files.cpp
+++ b/src/recent_files.cpp
@@ -86,7 +86,7 @@ void RecentFiles::addRecentFile(const char* filename)
   // If the filename does not exist...
 
   // Does the list is full?
-  if (recent_files.size() == recent_files_limit) {
+  if ((int)recent_files.size() == recent_files_limit) {
     // Remove the last entry
     recent_files.erase(--recent_files.end());
   }
diff --git a/src/resource_finder.cpp b/src/resource_finder.cpp
index 5928f54ad..9236550de 100644
--- a/src/resource_finder.cpp
+++ b/src/resource_finder.cpp
@@ -38,7 +38,7 @@ const char* ResourceFinder::first()
 
 const char* ResourceFinder::next()
 {
-  if (m_current == m_paths.size())
+  if (m_current == (int)m_paths.size())
     return NULL;
 
   return m_paths[m_current++].c_str();
diff --git a/src/tools/ink_processing.h b/src/tools/ink_processing.h
index 93deb4d24..3d5b7660d 100644
--- a/src/tools/ink_processing.h
+++ b/src/tools/ink_processing.h
@@ -309,8 +309,8 @@ static void ink_hline8_blur(int x1, int y, int x2, IToolLoop* loop)
 
 static void ink_hline32_replace(int x1, int y, int x2, IToolLoop* loop)
 {
-  int color1 = loop->getPrimaryColor();
-  int color2 = loop->getSecondaryColor();
+  ase_uint32 color1 = loop->getPrimaryColor();
+  ase_uint32 color2 = loop->getSecondaryColor();
   int opacity = loop->getOpacity();
 
   DEFINE_INK_PROCESSING_SRCDST
diff --git a/src/util/clipboard.cpp b/src/util/clipboard.cpp
index c7b751f26..8595a1309 100644
--- a/src/util/clipboard.cpp
+++ b/src/util/clipboard.cpp
@@ -48,7 +48,7 @@
 #include "widgets/colbar.h"
 #include "widgets/statebar.h"
 
-static ase_uint32 get_shift_from_mask(ase_uint32 mask);
+//static ase_uint32 get_shift_from_mask(ase_uint32 mask);
 
 #if defined ALLEGRO_WINDOWS
   #include <winalleg.h>
@@ -143,14 +143,14 @@ static bool copy_from_sprite(const Sprite* sprite)
   return true;
 }
 
-static ase_uint32 get_shift_from_mask(ase_uint32 mask)
-{
-  ase_uint32 shift = 0;
-  for (shift=0; shift<32; ++shift)
-    if (mask & (1 << shift))
-      return shift;
-  return shift;
-}
+// static ase_uint32 get_shift_from_mask(ase_uint32 mask)
+// {
+//   ase_uint32 shift = 0;
+//   for (shift=0; shift<32; ++shift)
+//     if (mask & (1 << shift))
+//       return shift;
+//   return shift;
+// }
 
 bool clipboard::can_paste()
 {
diff --git a/src/util/render.cpp b/src/util/render.cpp
index 2b327ed53..8594e2b3e 100644
--- a/src/util/render.cpp
+++ b/src/util/render.cpp
@@ -442,8 +442,6 @@ void RenderEngine::renderCheckedBackground(Image* image,
 					   int zoom)
 {
   int x, y, u, v;
-  int tile_x = 0;
-  int tile_y = 0;
   int tile_w = 16;
   int tile_h = 16;
   int c1 = get_color_for_image(image->imgtype, checked_bg_color1);
diff --git a/src/widgets/colbar.cpp b/src/widgets/colbar.cpp
index 3ad6b7f16..44f0cea22 100644
--- a/src/widgets/colbar.cpp
+++ b/src/widgets/colbar.cpp
@@ -358,8 +358,8 @@ bool ColorBar::onProcessMessage(JMessage msg)
 				KB_SHIFT_FLAG)) == KB_CTRL_FLAG) {
 	  int newColorsPerColumn = m_colorsPerColumn;
 
-	  while (((int)m_entrySize) >= ENTRYSIZE_MIN &&
-		 ((int)m_entrySize) <= ENTRYSIZE_MAX &&
+	  while (m_entrySize >= ENTRYSIZE_MIN &&
+		 m_entrySize <= ENTRYSIZE_MAX &&
 		 newColorsPerColumn == m_colorsPerColumn) {
 	    // Increment or decrement m_entrySize until m_colorsPerColumnn changes
 	    m_entrySize += delta;
@@ -376,7 +376,7 @@ bool ColorBar::onProcessMessage(JMessage msg)
 				KB_SHIFT_FLAG)) == KB_ALT_FLAG) {
 	  int old_columns = m_columns;
 
-	  if (((int)m_columns)+delta < 1)
+	  if (m_columns+delta < 1)
 	    m_columns = 1;
 	  else if (m_columns+delta > 4)
 	    m_columns = 4;
@@ -520,7 +520,7 @@ void ColorBar::setHotColor(hotcolor_t hot, color_t color)
   }
 }
 
-Rect ColorBar::getColumnBounds(size_t column) const
+Rect ColorBar::getColumnBounds(int column) const
 {
   Rect rc = getBounds().shrink(jguiscale());
   Rect fgRc = getFgBounds();
@@ -532,10 +532,10 @@ Rect ColorBar::getColumnBounds(size_t column) const
   return rc;
 }
 
-Rect ColorBar::getEntryBounds(size_t index) const
+Rect ColorBar::getEntryBounds(int index) const
 {
-  size_t row = (index % m_colorsPerColumn);
-  size_t col = (index / m_colorsPerColumn);
+  int row = (index % m_colorsPerColumn);
+  int col = (index / m_colorsPerColumn);
   Rect rc = getColumnBounds(col);
 
   rc.h -= 2*jguiscale();
diff --git a/src/widgets/colbar.h b/src/widgets/colbar.h
index 7772a8f19..ef7e188ce 100644
--- a/src/widgets/colbar.h
+++ b/src/widgets/colbar.h
@@ -52,19 +52,19 @@ protected:
 
 private:
   int getEntriesCount() const { return m_columns*m_colorsPerColumn; }
-  color_t getEntryColor(size_t i) const { return color_index(i+m_firstIndex); }
+  color_t getEntryColor(int i) const { return color_index(i+m_firstIndex); }
 
   color_t getHotColor(hotcolor_t hot);
   void setHotColor(hotcolor_t hot, color_t color);
-  Rect getColumnBounds(size_t column) const;
-  Rect getEntryBounds(size_t index) const;
+  Rect getColumnBounds(int column) const;
+  Rect getEntryBounds(int index) const;
   Rect getFgBounds() const;
   Rect getBgBounds() const;
   void updateStatusBar(color_t color, int msecs);
 
-  size_t m_firstIndex;
-  size_t m_columns;
-  size_t m_colorsPerColumn;
+  int m_firstIndex;
+  int m_columns;
+  int m_colorsPerColumn;
   int m_entrySize;
   color_t m_fgcolor;
   color_t m_bgcolor;
diff --git a/src/widgets/colsel.cpp b/src/widgets/colsel.cpp
index 336dfd51d..f6bacd0e4 100644
--- a/src/widgets/colsel.cpp
+++ b/src/widgets/colsel.cpp
@@ -286,7 +286,6 @@ static void colorselector_set_color2(JWidget widget, color_t color,
 				     Model* exclude_this_model)
 {
   ColorSelector* colorselector = colorselector_data(widget);
-  int imgtype = app_get_current_image_type();
   Model* m = colorselector->selected_model;
   JWidget rgb_rslider = jwidget_find_name(widget, "rgb_r");
   JWidget rgb_gslider = jwidget_find_name(widget, "rgb_g");
@@ -367,7 +366,6 @@ static void colorselector_set_color2(JWidget widget, color_t color,
 
 static void colorselector_set_paledit_index(JWidget widget, int index, bool select_index_entry)
 {
-  ColorSelector* colorselector = colorselector_data(widget);
   PalEdit* pal = static_cast<PalEdit*>(widget->findChild("pal"));
   Widget* idx = widget->findChild("idx");
   char buf[256];
@@ -433,7 +431,6 @@ static bool slider_change_hook(JWidget widget, void* data)
 {
   Frame* window = static_cast<Frame*>(widget->getRoot());
   ColorSelector* colorselector = colorselector_data(window);
-  PalEdit* pal = static_cast<PalEdit*>(window->findChild("pal"));
   Model* m = colorselector->selected_model;
   color_t color = colorselector->color;
   int i, r, g, b;
diff --git a/src/widgets/editor/cursor.cpp b/src/widgets/editor/cursor.cpp
index 3ff75e2be..d697be467 100644
--- a/src/widgets/editor/cursor.cpp
+++ b/src/widgets/editor/cursor.cpp
@@ -279,7 +279,7 @@ void Editor::editor_draw_cursor(int x, int y, bool refresh)
       ->getToolSettings(current_tool);
 
     int pen_color = get_pen_color(m_sprite);
-    int new_mask_color;
+    ase_uint32 new_mask_color;
     Pen* pen = editor_get_current_pen();
 
     // Create the extra cel to show the pen preview
diff --git a/src/widgets/editor/editor.cpp b/src/widgets/editor/editor.cpp
index d312abc77..de7abdb62 100644
--- a/src/widgets/editor/editor.cpp
+++ b/src/widgets/editor/editor.cpp
@@ -1413,6 +1413,10 @@ bool Editor::onProcessMessage(JMessage msg)
 
 	  switch (wheelAction) {
 
+	    case WHEEL_NONE:
+	      // Do nothing
+	      break;
+
 	    case WHEEL_FG:
 	      if (m_state == EDITOR_STATE_STANDBY) {
 		int newIndex = 0;
diff --git a/src/widgets/groupbut.cpp b/src/widgets/groupbut.cpp
index 20665b37f..07a9e3f18 100644
--- a/src/widgets/groupbut.cpp
+++ b/src/widgets/groupbut.cpp
@@ -101,7 +101,7 @@ int group_button_get_selected(JWidget group)
   JWidget sel = find_selected(group);
 
   if (sel)
-    return (size_t)sel->user_data[1];
+    return (int)sel->user_data[1];
   else
     return -1;
 }
@@ -110,7 +110,7 @@ void group_button_select(JWidget group, int index)
 {
   JWidget sel = find_selected(group);
 
-  if (!sel || (size_t)sel->user_data[1] != index) {
+  if (!sel || (int)sel->user_data[1] != index) {
     sel->setSelected(false);
     select_button(group, index);
   }
@@ -137,7 +137,7 @@ static int select_button(JWidget widget, int index)
   JLink link;
 
   if (widget->type == JI_RADIO) {
-    if ((size_t)widget->user_data[1] == index) {
+    if ((int)widget->user_data[1] == index) {
       widget->setSelected(true);
       return true;
     }
diff --git a/src/widgets/tabs.cpp b/src/widgets/tabs.cpp
index 1f2d56c0d..143d45802 100644
--- a/src/widgets/tabs.cpp
+++ b/src/widgets/tabs.cpp
@@ -339,6 +339,9 @@ bool Tabs::onProcessMessage(JMessage msg)
 
     case JM_TIMER: {
       switch (m_ani) {
+	case ANI_NONE:
+	  // Do nothing
+	  break;
 	case ANI_SCROLL: {
 	  int dir = jmanager_get_capture() == m_button_left ? -1: 1;
 	  setScrollX(m_scrollX + dir*8*msg->timer.count);
diff --git a/third_party/tinyxml/tinyxmlparser.cpp b/third_party/tinyxml/tinyxmlparser.cpp
index 9c91b4f94..abc761ec2 100644
--- a/third_party/tinyxml/tinyxmlparser.cpp
+++ b/third_party/tinyxml/tinyxmlparser.cpp
@@ -354,7 +354,7 @@ const char* TiXmlBase::SkipWhiteSpace( const char* p, TiXmlEncoding encoding )
 	}
 	else
 	{
-		while ( *p && IsWhiteSpace( *p ) || *p == '\n' || *p =='\r' )
+		while ( ( *p && IsWhiteSpace( *p ) ) || *p == '\n' || *p =='\r' )
 			++p;
 	}