Index: krusader/Panel/krbriefview.h
================================================================================
--- krusader/Panel/krbriefview.h
+++ krusader/Panel/krbriefview.h
@@ -19,7 +19,7 @@
 	virtual KrViewItem *getKrViewItemAt(const QPoint &vp);
 	virtual inline KrViewItem *findItemByName(const QString &name) { return dynamic_cast<KrViewItem*>( findItem( name, Qt::ExactMatch ) ); }
 	virtual void addItems(vfs* v, bool addUpDir = true) {}
-	virtual KrViewItem *addItem(vfile *vf) {}
+	virtual KrViewItem *addItem(vfile *vf) = 0;
 	virtual void delItem(const QString &name) {}
 	virtual void updateItem(vfile *vf) {}
 	virtual QString getCurrentItem() const;
@@ -33,15 +33,15 @@
 	virtual void restoreSettings() {}
 	virtual void prepareForActive() {}
 	virtual void prepareForPassive() {}
-	virtual QString nameInKConfig() {}
+	virtual QString nameInKConfig() = 0;
 	virtual void renameCurrentItem() {}
 
 protected:
 	virtual void setup();
 	virtual void initProperties();
 	virtual void initOperator();
-	virtual KrViewItem *preAddItem(vfile *vf) {}
-	virtual bool preDelItem(KrViewItem *item) {}
+	virtual KrViewItem *preAddItem(vfile *vf) = 0;
+	virtual bool preDelItem(KrViewItem *item) = 0;
 
   
 signals:
--- krusader/VFS/vfs.h
+++ krusader/VFS/vfs.h
@@ -134,7 +134,7 @@
 
 protected:
 	/// Feel the vfs dictionary with vfiles, must be implemented for each vfs
-	virtual bool populateVfsList(const KURL& origin, bool showHidden) = 0L;
+	virtual bool populateVfsList(const KURL& origin, bool showHidden) = 0;
 	/// Set the vfile list pointer
 	void setVfsFilesP(vfileDict* dict);
 	/// clear and delete all current vfiles