--- a/common/autoconf/flags.m4	Fri Feb 05 09:41:16 2016 +0100
+++ b/common/autoconf/flags.m4	Mon Feb 08 11:28:38 2016 +0100
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2016, 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
@@ -426,7 +426,7 @@
       # Add runtime stack smashing and undefined behavior checks.
       # Not all versions of gcc support -fstack-protector
       STACK_PROTECTOR_CFLAG="-fstack-protector-all"
-      FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$STACK_PROTECTOR_CFLAG], IF_FALSE: [STACK_PROTECTOR_CFLAG=""])
+      FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$STACK_PROTECTOR_CFLAG -Werror], IF_FALSE: [STACK_PROTECTOR_CFLAG=""])
 
       CFLAGS_DEBUG_OPTIONS="$STACK_PROTECTOR_CFLAG --param ssp-buffer-size=1"
       CXXFLAGS_DEBUG_OPTIONS="$STACK_PROTECTOR_CFLAG --param ssp-buffer-size=1"