--- BasiliskII/src/AmigaOS/audio_amiga.cpp	1999/10/20 15:13:55	1.3
+++ BasiliskII/src/AmigaOS/audio_amiga.cpp	1999/10/21 22:39:56	1.4
@@ -57,7 +57,11 @@ static int audio_block_fetched = 0;				/
 
 
 // Prototypes
+#ifdef __GNUC__
+static __saveds __attribute__((regparm(3))) ULONG audio_callback(struct Hook *hook /*a0*/, struct AHISoundMessage *msg /*a1*/, struct AHIAudioCtrl *ahi_ctrl /*a2*/);
+#else
 static __saveds __regargs ULONG audio_callback(struct Hook *hook /*a0*/, struct AHISoundMessage *msg /*a1*/, struct AHIAudioCtrl *ahi_ctrl /*a2*/);
+#endif
 
 
 /*
@@ -174,7 +178,11 @@ void audio_exit_stream()
  *  AHI sound callback, request next buffer
  */
 
+#ifdef __GNUC__
+static __saveds __attribute__((regparm(3))) ULONG audio_callback(struct Hook *hook /*a0*/, struct AHISoundMessage *msg /*a1*/, struct AHIAudioCtrl *ahi_ctrl /*a2*/)
+#else
 static __saveds __regargs ULONG audio_callback(struct Hook *hook /*a0*/, struct AHISoundMessage *msg /*a1*/, struct AHIAudioCtrl *ahi_ctrl /*a2*/)
+#endif
 {
 	play_buf ^= 1;