diff -r f2e38d537544 src/hugin1/executor/hugin_executor.cpp
--- a/src/hugin1/executor/hugin_executor.cpp	Tue Sep 29 21:22:17 2015 +0200
+++ b/src/hugin1/executor/hugin_executor.cpp	Wed Sep 30 14:32:57 2015 +0200
@@ -35,6 +35,11 @@
 #include <wx/cmdline.h>
 #include <wx/arrstr.h>
 #include <wx/stdpaths.h>
+// undefine DIFFERENCE defined in windows.h (included by wx/app.h)
+#ifdef DIFFERENCE
+#undef DIFFERENCE
+#endif
+
 #include "base_wx/huginConfig.h"
 #include "base_wx/platform.h"
 #include "panodata/Panorama.h"