--- a/make/mapfiles/libunpack/mapfile-vers-unpack200-solaris-x86	Tue Mar 20 09:21:43 2018 -0700
+++ b/make/mapfiles/libunpack/mapfile-vers-unpack200-solaris-x86	Tue Mar 20 12:14:41 2018 +0100
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -28,6 +28,7 @@
 SUNWprivate_1.1 {
 	global:
 		# These are needed by the c runtime in SS12u4
+		environ;
 		_environ;
 		__environ_lock;
 		___Argv;