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-rw-r--r--gui/init.hpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/gui/init.hpp b/gui/init.hpp
index 1142ff24..7c437bcb 100644
--- a/gui/init.hpp
+++ b/gui/init.hpp
@@ -5,7 +5,7 @@
#include <functional>
#include <QWidget>
-int OTR_GUI_EXPORT otr_main(int argc, char** argv, std::function<QWidget*()> make_main_window);
+OTR_GUI_EXPORT int otr_main(int argc, char** argv, std::function<QWidget*()> const& make_main_window);
// XXX TODO need split MainWindow into mixins each implementing part of the functionality