From 53cf77cf18fa44ed60ad586fb9add661853b205a Mon Sep 17 00:00:00 2001
From: Andreas Hansson <andreas.hansson@arm.com>
Date: Thu, 5 Sep 2013 13:53:54 -0400
Subject: [PATCH] sim: Fix clang warning for unused variable

This patch ensures the NULL ISA can build without causing issues with
an unused variable.
---
 src/sim/system.hh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/sim/system.hh b/src/sim/system.hh
index 5b166eabf..c8945c8c1 100644
--- a/src/sim/system.hh
+++ b/src/sim/system.hh
@@ -380,7 +380,7 @@ class System : public MemObject
     T *addFuncEvent(const SymbolTable *symtab, const char *lbl,
                     const std::string &desc, Args... args)
     {
-        Addr addr = 0; // initialize only to avoid compiler warning
+        Addr addr M5_VAR_USED = 0; // initialize only to avoid compiler warning
 
 #if THE_ISA != NULL_ISA
         if (symtab->findAddress(lbl, addr)) {