From 0148df8c6ffbb39360e95f3e6b5d2c284fd8ee2f Mon Sep 17 00:00:00 2001
From: Richard Brooksby <rb@ravenbrook.com>
Date: Wed, 16 Mar 2016 22:46:26 +0000
Subject: [PATCH] Supress gcc -o3 unused variable warning.

Copied from Perforce
 Change: 190125
 ServerID: perforce.ravenbrook.com
---
 mps/code/global.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mps/code/global.c b/mps/code/global.c
index d1407e77954..ee308e8a684 100644
--- a/mps/code/global.c
+++ b/mps/code/global.c
@@ -809,7 +809,7 @@ Bool ArenaStep(Globals globals, double interval, double multiplier)
 Res ArenaFinalize(Arena arena, Ref obj)
 {
   Res res;
-  Pool refpool;
+  Pool refpool = NULL; /* suppress gcc -O3 unused warning */
 
   AVERT(Arena, arena);
   AVER(PoolOfAddr(&refpool, arena, (Addr)obj));