From ea4d6a40161c2f9980513942987f1f2bbcbd1600 Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Wed, 2 Nov 2011 14:01:22 +0200
Subject: [PATCH] Mark dummy as unused since it's apparently needed on some
 platforms (OpenITG on OS/2?  Oh yeah.)

---
 src/pcre/study.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/pcre/study.c b/src/pcre/study.c
index a40f7216..410d6919 100755
--- a/src/pcre/study.c
+++ b/src/pcre/study.c
@@ -38,6 +38,11 @@ the external pcre header. */
 
 #include "internal.h"
 
+#ifdef __GNUC__
+#define UNUSED __attribute__((unused))
+#else
+#define UNUSED
+#endif
 
 
 /*************************************************
@@ -96,7 +101,7 @@ code. Apparently IBM isn't going to fix the problem, and we would rather not
 disable optimization (in this module it actually makes a big difference, and
 the pcre module can use all the optimization it can get). */
 
-volatile int dummy;
+volatile int dummy UNUSED;
 
 do
   {
-- 
2.11.0