[tracker] build: Clean up more compiler warnings

[Martyn James Russell <mr src gnome org>]

commit 97fe5ee7cffcae20e03b9ad4e5cc778038efa964
Author: Martyn Russell <martyn lanedo com>
Date:   Thu Dec 15 10:28:10 2011 +0000

    build: Clean up more compiler warnings

 src/miners/rss/tracker-miner-rss.c              |    4 ----
 src/tracker-extract/tracker-extract-gstreamer.c |    2 +-
 src/tracker-extract/tracker-extract-png.c       |    8 ++++++--
 3 files changed, 7 insertions(+), 7 deletions(-)
---
diff --git a/src/miners/rss/tracker-miner-rss.c b/src/miners/rss/tracker-miner-rss.c
index 813a0d3..5d32634 100644
--- a/src/miners/rss/tracker-miner-rss.c
+++ b/src/miners/rss/tracker-miner-rss.c
@@ -295,14 +295,12 @@ feed_channel_change_updated_time_cb (GObject      *source,
 static gboolean
 feed_channel_changed_timeout_cb (gpointer user_data)
 {
-	TrackerMinerRSSPrivate *priv;
 	TrackerSparqlBuilder *sparql;
 	FeedChannelUpdateData *fcud;
 	gchar *uri;
 	time_t now;
 
 	fcud = user_data;
-	priv = TRACKER_MINER_RSS_GET_PRIVATE (fcud->miner);
 
 	now = time (NULL);
 	uri = g_object_get_data (G_OBJECT (fcud->channel), "subject");
@@ -406,12 +404,10 @@ feed_item_insert_cb (GObject      *source,
                      gpointer      user_data)
 {
 	FeedItemInsertData *fiid;
-	FeedChannel *channel;
 	GError *error;
 	const gchar *title;
 
 	fiid = user_data;
-	channel = feed_item_get_parent (fiid->item);
 	title = feed_item_get_title (fiid->item);
 	error = NULL;
 
diff --git a/src/tracker-extract/tracker-extract-gstreamer.c b/src/tracker-extract/tracker-extract-gstreamer.c
index 46fc258..559c5c9 100644
--- a/src/tracker-extract/tracker-extract-gstreamer.c
+++ b/src/tracker-extract/tracker-extract-gstreamer.c
@@ -1184,7 +1184,7 @@ extract_metadata (MetadataExtractor      *extractor,
 		tracker_sparql_builder_object_boolean (metadata, TRUE);
 	}
 #else
-#warning TODO: handle encrypted content with the Discoverer/GUPnP-DLNA backends
+/* #warning TODO: handle encrypted content with the Discoverer/GUPnP-DLNA backends */
 #endif
 
 #if defined(GSTREAMER_BACKEND_TAGREADBIN)
diff --git a/src/tracker-extract/tracker-extract-png.c b/src/tracker-extract/tracker-extract-png.c
index 2bf5c5e..eea147f 100644
--- a/src/tracker-extract/tracker-extract-png.c
+++ b/src/tracker-extract/tracker-extract-png.c
@@ -79,6 +79,8 @@ rfc1123_to_iso8601_date (const gchar *date)
 	return tracker_date_format_to_iso8601 (date, RFC1123_DATE_FORMAT);
 }
 
+#if defined(PNG_iTXt_SUPPORTED) && (defined(HAVE_EXEMPI) || defined(HAVE_LIBEXIF))
+
 /* Handle raw profiles by Imagemagick (at least). Hex encoded with
  * line-changes and other (undocumented/unofficial) twists.
  */
@@ -181,6 +183,8 @@ raw_profile_new (const gchar *input,
 	return output;
 }
 
+#endif /* defined(PNG_iTXt_SUPPORTED) && (defined(HAVE_EXEMPI) || defined(HAVE_LIBEXIF)) */
+
 static void
 read_metadata (TrackerSparqlBuilder *preupdate,
                TrackerSparqlBuilder *metadata,
@@ -256,7 +260,7 @@ read_metadata (TrackerSparqlBuilder *preupdate,
 
 				continue;
 			}
-#endif
+#endif /*HAVE_EXEMPI && PNG_iTXt_SUPPORTED */
 
 #if defined(HAVE_LIBEXIF) && defined(PNG_iTXt_SUPPORTED)
 			if (g_strcmp0 ("Raw profile type exif", text_ptr[i].key) == 0) {
@@ -284,7 +288,7 @@ read_metadata (TrackerSparqlBuilder *preupdate,
 
 				continue;
 			}
-#endif /* HAVE_LIBEXIF */
+#endif /* HAVE_LIBEXIF && PNG_iTXt_SUPPORTED */
 
 			if (g_strcmp0 (text_ptr[i].key, "Author") == 0) {
 				pd.author = text_ptr[i].text;