Index: plugins/mp3/mp3.h
--- plugins/mp3/mp3.h.orig
+++ plugins/mp3/mp3.h
@@ -69,24 +69,18 @@ typedef struct {
 
     char input[READBUFFER]; // input buffer, for MPEG data
 
-    union {
 #ifdef USE_LIBMAD
-        struct {
             struct mad_stream mad_stream;
             struct mad_frame mad_frame;
             struct mad_synth mad_synth;
             long input_remaining_bytes;
-        };
 #endif
 #ifdef USE_LIBMPG123
-        struct {
             mpg123_handle *mpg123_handle;
             int mpg123_status;
             unsigned char *mpg123_audio;
             int total_decoded_samples;
-        };
 #endif
-    };
 
     int want_16bit;
     int raw_signal;