--- smpeg-0.4.5/MPEGaudio.h.orig	2006-05-01 06:18:36.000000000 +0300
+++ smpeg-0.4.5/MPEGaudio.h	2011-02-05 18:55:15.573765022 +0200
@@ -153,6 +153,13 @@
 };
 
 /* 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 {
 
 public: