--- old/src/java.desktop/share/native/libfontmanager/harfbuzz/hb-font-private.hh	2017-11-30 10:46:51.841458658 -0800
+++ new/src/java.desktop/share/native/libfontmanager/harfbuzz/hb-font-private.hh	2017-11-30 10:46:51.693458662 -0800
@@ -108,6 +108,8 @@
   unsigned int x_ppem;
   unsigned int y_ppem;
 
+  float ptem;
+
   /* Font variation coordinates. */
   unsigned int num_coords;
   int *coords;