--- old/src/hotspot/share/utilities/debug.cpp	2018-04-05 12:03:44.000000000 -0500
+++ new/src/hotspot/share/utilities/debug.cpp	2018-04-05 12:03:43.000000000 -0500
@@ -40,6 +40,7 @@
 #include "prims/privilegedStack.hpp"
 #include "runtime/arguments.hpp"
 #include "runtime/atomic.hpp"
+#include "runtime/flags/flagSetting.hpp"
 #include "runtime/frame.inline.hpp"
 #include "runtime/handles.inline.hpp"
 #include "runtime/java.hpp"