From c3adc86d6b9da02603e665822df295372778e06c Mon Sep 17 00:00:00 2001
From: Matt Connolly <matt.connolly@me.com>
Date: Mon, 2 Sep 2013 06:49:30 +1000
Subject: [PATCH] Fix unused variable when using eventfd

---
 src/signaler.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/signaler.cpp b/src/signaler.cpp
index 1bcacf59..30deb1ec 100644
--- a/src/signaler.cpp
+++ b/src/signaler.cpp
@@ -267,7 +267,9 @@ void zmq::signaler_t::recv ()
 void zmq::signaler_t::forked()
 {
     int oldr = r;
+#if !defined ZMQ_HAVE_EVENTFD
     int oldw = w;
+#endif
 
     // replace the file descriptors created in the parent with new
     // ones, and close the inherited ones