--- smpeg-0.4.4/MPEGaudio.h~	2001-04-04 22:42:40.000000000 +0200
+++ smpeg-0.4.4/MPEGaudio.h	2007-01-15 10:39:31.000000000 +0100
@@ -149,6 +149,13 @@
 };
 
 /* The actual MPEG audio class */
+class MPEGaudio;
+void Play_MPEGaudioSDL(void *udata, Uint8 *stream, int len);
+int Play_MPEGaudio(MPEGaudio *audio, Uint8 *stream, int len);
+#ifdef THREADED_AUDIO
+int Decode_MPEGaudio(void *udata);
+#endif
+
 class MPEGaudio : public MPEGerror, public MPEGaudioaction {
 
     friend void Play_MPEGaudioSDL(void *udata, Uint8 *stream, int len);