From 8bcf425d06a278ee7870082777a8e99229c53eed Mon Sep 17 00:00:00 2001
From: Benoit Fouet <benoit.fouet@free.fr>
Date: Thu, 16 Oct 2014 11:44:46 +0200
Subject: [PATCH] avformat/id3v2: silence a warning when CONFIG_ZLIB is unset.

dlen is only read when CONFIG_ZLIB is set, so mark it as possibly
unused.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---
 libavformat/id3v2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/id3v2.c b/libavformat/id3v2.c
index 5469e0ace5..44df4fff34 100644
--- a/libavformat/id3v2.c
+++ b/libavformat/id3v2.c
@@ -726,7 +726,7 @@ static void id3v2_parse(AVIOContext *pb, AVDictionary **metadata,
         int tunsync         = 0;
         int tcomp           = 0;
         int tencr           = 0;
-        unsigned long dlen;
+        unsigned long av_unused dlen;
 
         if (isv34) {
             if (avio_read(pb, tag, 4) < 4)