--- vcl/qt5/Qt5Instance.cxx.orig	2019-08-21 22:22:13.996160000 +0800

+++ vcl/qt5/Qt5Instance.cxx	2019-08-21 22:30:33.169056000 +0800

@@ -413,7 +413,7 @@

     {

         SolarMutexGuard g;

         Qt5FilePicker* pPicker;

-        RunInMainThread(std::function([&, this]() { pPicker = createPicker(context, eMode); }));

+        RunInMainThread([&, this]() { pPicker = createPicker(context, eMode); });

         assert(pPicker);

         return pPicker;

     }