Fix minor warnings from clang-13.

src/gui/FavoritesManager.cxx

@@ -216,6 +216,7 @@ void FavoritesManager::addRecent(const string& path)
     myRecentList.erase(myRecentList.begin());
 }
 
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 bool FavoritesManager::removeRecent(const string& path)
 {
   auto it = std::find(myRecentList.begin(), myRecentList.end(), path);
@@ -260,6 +261,7 @@ const FavoritesManager::RecentList& FavoritesManager::recentList() const
   return sortedList;
 }
 
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 bool FavoritesManager::removePopular(const string& path)
 {
   return myPopularMap.erase(path);

src/gui/FileListWidget.cxx

@@ -155,6 +155,7 @@ void FileListWidget::getChildren(const FilesystemNode::CancelCheck& isCancelled)
   }
 }
 
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 FileListWidget::IconType FileListWidget::getIconType(const string& path) const
 {
   const FilesystemNode node(path);
@@ -239,6 +240,7 @@ bool FileListWidget::hasNextHistory()
   return _currentHistory != std::prev(_history.end(), 1);
 }
 
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 string& FileListWidget::fixPath(string& path)
 {
   if(path.back() == FilesystemNode::PATH_SEPARATOR)

src/gui/Icon.hxx

@@ -27,8 +27,8 @@ namespace GUI {
 
 struct IconDesc
 {
-  int width;
-  int height;
+  int width{0};
+  int height{0};
 
   explicit IconDesc(int _width, int _height)
     : width{_width}, height{_height} {}

src/gui/Icons.hxx

@@ -527,4 +527,5 @@ static const Icon icon_help_large(
   });
 
 }  // namespace GUI
+
 #endif

src/gui/NavigationWidget.hxx

@@ -40,7 +40,7 @@ class NavigationWidget : public Widget
           public:
             FolderLinkWidget(GuiObject* boss, const GUI::Font& font,
               int x, int y, int w, int h, const string& text, const string& path);
-            ~FolderLinkWidget() = default;
+            ~FolderLinkWidget() override = default;
 
             void setPath(const string& path) { myPath = path; }
             const string& getPath() const { return myPath; }
@@ -63,7 +63,7 @@ class NavigationWidget : public Widget
       public:
         PathWidget(GuiObject* boss, CommandReceiver* target,
           const GUI::Font& font, int x, int y, int w, int h);
-        ~PathWidget() = default;
+        ~PathWidget() override = default;
 
         void setPath(const string& path);
         const string& getPath(int idx) const;
@@ -78,7 +78,7 @@ class NavigationWidget : public Widget
             : path{_path}, widget{_widget} {}
         };
         std::vector<FolderLinkWidget*> myFolderList;
-        CommandReceiver* myTarget;
+        CommandReceiver* myTarget{nullptr};
 
       private:
         // Following constructors and assignment operators not supported
@@ -92,7 +92,7 @@ class NavigationWidget : public Widget
   public:
     NavigationWidget(GuiObject* boss, const GUI::Font& font,
       int x, int y, int w, int h);
-    ~NavigationWidget() = default;
+    ~NavigationWidget() override = default;
 
     void setWidth(int w) override;
     void setList(FileListWidget* list);