[tracker] tracker-extract: Fix compile of Qt media art backend

[Sam Thursfield <sthursfield src gnome org>]

commit 8dfadf3fab763e4a3c2e43992d3aebba9db63389
Author: Sam Thursfield <sam thursfield codethink co uk>
Date:   Sat May 12 00:18:04 2012 +0900

    tracker-extract: Fix compile of Qt media art backend

 src/tracker-extract/tracker-media-art-qt.cpp |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/tracker-extract/tracker-media-art-qt.cpp b/src/tracker-extract/tracker-media-art-qt.cpp
index 89aad2a..74aad18 100644
--- a/src/tracker-extract/tracker-media-art-qt.cpp
+++ b/src/tracker-extract/tracker-media-art-qt.cpp
@@ -20,6 +20,7 @@
  * Philip Van Hoof <philip codeminded be>
  */
 
+#include "tracker-main.h"
 
 #include <QFile>
 #include <QBuffer>