diff -Naur nomacs-3.12/ImageLounge/src/DkCore/DkMetaData.cpp nomacs-3.12_patched/ImageLounge/src/DkCore/DkMetaData.cpp
--- nomacs-3.12/ImageLounge/src/DkCore/DkMetaData.cpp	2018-10-22 12:25:33.000000000 +0300
+++ nomacs-3.12_patched/ImageLounge/src/DkCore/DkMetaData.cpp	2019-05-31 18:06:34.984494726 +0300
@@ -32,6 +32,8 @@
 #include "DkSettings.h"
 #include "DkTimer.h"
 
+#include <iostream>
+
 #pragma warning(push, 0)	// no warnings from includes - begin
 #include <QTranslator>
 #include <QObject>
diff -Naur nomacs-3.12/ImageLounge/src/DkGui/DkNoMacs.cpp nomacs-3.12_patched/ImageLounge/src/DkGui/DkNoMacs.cpp
--- nomacs-3.12/ImageLounge/src/DkGui/DkNoMacs.cpp	2018-10-22 12:25:33.000000000 +0300
+++ nomacs-3.12_patched/ImageLounge/src/DkGui/DkNoMacs.cpp	2019-05-31 18:05:01.413497500 +0300
@@ -58,6 +58,8 @@
 #include "DkPluginManager.h"
 #endif //  WITH_PLUGINS
 
+#include <iostream>
+
 #pragma warning(push, 0)	// no warnings from includes - begin
 #include <QBoxLayout>
 #include <QResizeEvent>