--- old/src/jdk.hotspot.agent/linux/native/libsaproc/libproc_impl.h	2017-04-13 16:32:42.650076707 -0700
+++ new/src/jdk.hotspot.agent/linux/native/libsaproc/libproc_impl.h	2017-04-13 16:32:42.470073447 -0700
@@ -27,6 +27,9 @@
 
 #include <unistd.h>
 #include <limits.h>
+
+struct ps_prochandle;
+
 #include "libproc.h"
 #include "symtab.h"