--- smpeg-0.4.5+cvs20030824.orig/MPEGaudio.h
+++ smpeg-0.4.5+cvs20030824/MPEGaudio.h
@@ -149,6 +149,14 @@
 };
 
 /* 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);