quiet clang warning about mismatched types

diff --git a/gui/mainwindow.h b/gui/mainwindow.h
index ee25fb3bb3a61254e303d3615e7c2d3b76be7db3..97d6619bb5508e3785d63c3544741862ecebc155 100644 (file)
--- a/gui/mainwindow.h
+++ b/gui/mainwindow.h
@@ -19,7 +19,7 @@ class QModelIndex;
 class QProgressBar;
 class QTreeWidgetItem;
 class QUrl;
-class RetraceError;
+struct RetraceError;
 class Retracer;
 class SearchWidget;
 class ShadersSourceWidget;