Index: rockbox/source/apps/codecs/lib/ffmpeg_get_bits.h
===================================================================
--- rockbox/source/apps/codecs/lib/ffmpeg_get_bits.h	(revision 29793)
+++ rockbox/source/apps/codecs/lib/ffmpeg_get_bits.h	(arbetskopia)
@@ -178,9 +178,16 @@
 #ifdef ALT_BITSTREAM_READER
 #   define MIN_CACHE_BITS 25
 
-#   define OPEN_READER(name, gb)\
-        unsigned int name##_index= (gb)->index;\
-        int name##_cache= 0;\
+/* ROCKBOX: work around "set but not used" warning */
+#   ifdef __GNUC__
+#       define OPEN_READER(name, gb)\
+            unsigned int name##_index= (gb)->index;\
+            int name##_cache __attribute__((unused)) = 0;
+#   else
+#       define OPEN_READER(name, gb)\
+            unsigned int name##_index= (gb)->index;\
+            int name##_cache= 0;
+#   endif
 
 #   define CLOSE_READER(name, gb)\
         (gb)->index= name##_index;\