Removed compiler warnings.

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@5476 178a84e3-b1eb-0310-8ba1-8eac791a3b58

src/guiengine/engine.cpp

@@ -633,6 +633,7 @@ namespace GUIEngine
         }
         catch (std::runtime_error& err)
         {
+            (void)err;   // avoid warning about unused variable
             std::cerr << "ERROR, cannot load skin specified in user config. Falling back to defaults.\n";
             UserConfigParams::m_skin_file.revertToDefaults();
             
@@ -712,6 +713,7 @@ namespace GUIEngine
         }
         catch (std::runtime_error& err)
         {
+            (void)err;  // avoid warning about unused variable
             std::cerr << "ERROR, cannot load newly specified skin!\n";
             return;
         }

src/guiengine/skin.hpp

@@ -165,8 +165,8 @@ namespace GUIEngine
             r = -1;
             g = -1;
             b = -1;
-        }
-    };
+        }   // SkinWidgetContainer
+    };   // class SkinWidgetContainer
     
     class Widget;
     

src/items/rubber_band.cpp

@@ -45,7 +45,7 @@ const wchar_t* getPlungerString()
         case 1: return _("%1 latches onto %0 for a free ride");
         //I18N: shown when hit by plunger. %0 is the victim, %1 is the attacker
         case 2: return _("%1 tests a tractor beam on %0");
-        default: assert(false);
+        default: assert(false); return _("");  // avoid warning about no return value
     }
 }