[gnome-nds-thumbnailer] main: Fix build warnings

[Bastien Nocera <hadess src gnome org>]

commit 057bbda17094018c9ad7b2da57b348f951a8cecb
Author: Bastien Nocera <hadess hadess net>
Date:   Sat Jul 13 11:06:08 2013 +0200

    main: Fix build warnings

 gnome-nds-thumbnailer.c |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)
---
diff --git a/gnome-nds-thumbnailer.c b/gnome-nds-thumbnailer.c
index 55b9d76..a9e477c 100644
--- a/gnome-nds-thumbnailer.c
+++ b/gnome-nds-thumbnailer.c
@@ -68,7 +68,7 @@ put_pixel (guchar *pixels, int rowstride, int x, int y, struct palette_i item)
        p[3] = item.a;
 }
 
-GdkPixbuf *
+static GdkPixbuf *
 load_icon (gchar *tile_data, guint16 *palette_data)
 {
        struct palette_i palette[16];
@@ -121,9 +121,7 @@ static const GOptionEntry entries[] = {
 
 int main (int argc, char **argv)
 {
-       GMappedFile *map;
        guint32 offset;
-       gchar *base;
        gchar *tile_data;
        guint16 *palette_data;