From c1b59f5fbc44f7d58065e6ff6810da4a1eb502d3 Mon Sep 17 00:00:00 2001
From: Tom Henderson <tomh@tomh.org>
Date: Thu, 9 Apr 2015 07:25:24 -0700
Subject: [PATCH] silence unused variable warning

---
 src/spectrum/model/tv-spectrum-transmitter.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/spectrum/model/tv-spectrum-transmitter.cc b/src/spectrum/model/tv-spectrum-transmitter.cc
index 956914fbe..bce9b35f3 100644
--- a/src/spectrum/model/tv-spectrum-transmitter.cc
+++ b/src/spectrum/model/tv-spectrum-transmitter.cc
@@ -53,6 +53,7 @@ TvSpectrumTransmitter::TvSpectrumTransmitter ()
     m_active (false)
 {
   NS_LOG_FUNCTION (this);
+  NS_UNUSED (m_channelNumber); // avoid unused warning; variable used by helper
 }
 
 TvSpectrumTransmitter::~TvSpectrumTransmitter ()