Fix compilation with Qt older then 5.10

retroshare-gui/src/gui/gxschannels/GxsChannelPostsWidget.cpp

@@ -32,8 +32,10 @@
 #include "gui/settings/rsharesettings.h"
 #include "gui/feeds/SubFileItem.h"
 #include "gui/notifyqt.h"
-#include <algorithm>
 #include "util/DateTime.h"
+#include "util/qtthreadsutils.h"
+
+#include <algorithm>
 
 #define CHAN_DEFAULT_IMAGE ":/images/channels.png"
 
@@ -661,14 +663,17 @@ void GxsChannelPostsWidget::toggleAutoDownload()
 			return;
 		}
 
-		QMetaObject::invokeMethod(this, [=]()
+		RsQThreadUtils::postToObject( [=]()
 		{
 			/* Here it goes any code you want to be executed on the Qt Gui
 			 * thread, for example to update the data model with new information
 			 * after a blocking call to RetroShare API complete, note that
 			 * Qt::QueuedConnection is important!
 			 */
-		}, Qt::QueuedConnection);
+
+			std::cerr << __PRETTY_FUNCTION__ << " Has been executed on GUI "
+			          << "thread but was scheduled by async thread" << std::endl;
+		}, this );
 	});
 }