--- atari800-2.0.2/src/sound_oss.c	2005-12-28 10:22:06.000000000 -0800
+++ atari800-2.0.2-csound//src/sound_oss.c	2007-01-13 14:04:22.000000000 -0800
@@ -38,11 +38,13 @@
 #include "log.h"
 #include "pokeysnd.h"
 #include "util.h"
+#include "atari_csound.h"
 
 static const char * const dspname = "/dev/dsp";
 static int dsprate = 22050;
 
 static int sound_enabled = TRUE;
+static int csound_enabled = TRUE;
 static int dsp_fd;
 static int output_channels;
 static int pokey_chips;
@@ -55,6 +57,12 @@
 	for (i = j = 1; i < *argc; i++) {
 		if (strcmp(argv[i], "-sound") == 0)
 			sound_enabled = TRUE;
+		if (strcmp(argv[i], "-csound") == 0)
+		{
+			sound_enabled = FALSE;
+			csound_enabled = TRUE;
+			atari_csound_open();
+		}
 		else if (strcmp(argv[i], "-nosound") == 0)
 			sound_enabled = FALSE;
 		else if (strcmp(argv[i], "-dsprate") == 0)
@@ -154,6 +162,8 @@
 	   - pokeysnd currently supports only up to 65535Hz */
 	static unsigned char buffer[4096];
 	unsigned int len;
+	if(csound_enabled)
+		atari_csound_write_audio(AUDCTL[0], AUDF, AUDC);
 	if (!sound_enabled)
 		return;
 	/* compute number of samples for one Atari frame
--- atari800-2.0.2/src/configure	2006-04-08 06:12:23.000000000 -0700
+++ atari800-2.0.2-csound//src/configure	2007-01-13 18:18:28.000000000 -0800
@@ -9377,7 +9377,7 @@
                 ;;
             *)
                 if [ "$SUPPORTS_SOUND_OSS" = "yes" ]; then
-                    OBJS="$OBJS sound_oss.o"
+                    OBJS="$OBJS sound_oss.o atari_csound.o"
                 else
                     { { echo "$as_me:$LINENO: error: Sound support not available, re-run configure with --disable-sound" >&5
 echo "$as_me: error: Sound support not available, re-run configure with --disable-sound" >&2;}