Fix compile with optional components disabled

src/widgets/fileview.cpp

@@ -213,9 +213,10 @@ void FileView::UndoCommand::undo() {
 
 }
 
-#ifdef HAVE_GSTREAMER
 void FileView::Delete(const QStringList &filenames) {
 
+#ifdef HAVE_GSTREAMER
+
   if (filenames.isEmpty())
     return;
 
@@ -228,19 +229,28 @@ void FileView::Delete(const QStringList &filenames) {
   connect(delete_files, SIGNAL(Finished(SongList)), SLOT(DeleteFinished(SongList)));
   delete_files->Start(filenames);
 
+#else
+  Q_UNUSED(filenames)
+#endif
+
 }
 
 void FileView::DeleteFinished(const SongList &songs_with_errors) {
 
+#ifdef HAVE_GSTREAMER
+
   if (songs_with_errors.isEmpty()) return;
 
   OrganiseErrorDialog *dialog = new OrganiseErrorDialog(this);
   dialog->Show(OrganiseErrorDialog::Type_Delete, songs_with_errors);
   // It deletes itself when the user closes it
 
-}
+#else
+  Q_UNUSED(songs_with_errors)
 #endif
 
+}
+
 void FileView::showEvent(QShowEvent *e) {
 
   QWidget::showEvent(e);