diff -ru smpeg-0.4.4/MPEGaudio.h smpeg-0.4.4-patched/MPEGaudio.h
--- smpeg-0.4.4/MPEGaudio.h	2001-04-04 22:42:40.000000000 +0200
+++ smpeg-0.4.4-patched/MPEGaudio.h	2009-09-25 21:20:26.000000000 +0200
@@ -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);
diff -ru smpeg-0.4.4/smpeg.m4 smpeg-0.4.4-patched/smpeg.m4
--- smpeg-0.4.4/smpeg.m4	2001-04-04 22:28:14.000000000 +0200
+++ smpeg-0.4.4-patched/smpeg.m4	2009-09-25 21:20:26.000000000 +0200
@@ -10,7 +10,7 @@
 ACTION-IF-NOT-FOUND]]])
 dnl Test for SMPEG, and define SMPEG_CFLAGS and SMPEG_LIBS
 dnl
-AC_DEFUN(AM_PATH_SMPEG,
+AC_DEFUN([AM_PATH_SMPEG],
 [dnl
 dnl Get the cflags and libraries from the smpeg-config script
 dnl
diff -ru smpeg-0.4.4/video/video.h smpeg-0.4.4-patched/video/video.h
--- smpeg-0.4.4/video/video.h	2001-02-10 08:36:42.000000000 +0100
+++ smpeg-0.4.4-patched/video/video.h	2009-09-25 21:20:54.000000000 +0200
@@ -413,7 +413,7 @@
 #define __SCO__ 1
 #endif
 
-#if defined(__i386__) || defined(__VAX__) || defined(__MIPSEL__) || defined(__alpha__) || defined(__SCO__)
+#if defined(__i386__) || defined(__x86_64__) || defined(__VAX__) || defined(__MIPSEL__) || defined(__alpha__) || defined(__SCO__)
 #undef  BIG_ENDIAN_ARCHITECTURE
 #define LITTLE_ENDIAN_ARCHITECTURE 1
 #endif