--- old/src/share/vm/utilities/globalDefinitions.hpp	2017-07-17 17:45:05.035246676 +0200
+++ new/src/share/vm/utilities/globalDefinitions.hpp	2017-07-17 17:45:04.915246906 +0200
@@ -445,6 +445,7 @@
 // reference fields can be naturally aligned.
 
 extern int MinObjAlignment;
+extern int MinObjAlignmentMask;
 extern int MinObjAlignmentInBytes;
 extern int MinObjAlignmentInBytesMask;