diff -rubB rocksndiamonds-2.0.0/Makefile rocksndiamonds-2.0.0-cygwin/Makefile
--- rocksndiamonds-2.0.0/Makefile	Sun Dec 31 16:24:30 2000
+++ rocksndiamonds-2.0.0-cygwin/Makefile	Sat Oct 13 08:12:39 2001
@@ -12,7 +12,7 @@
 
 # specify path to X11 on your system
 # if undefined, use system defaults (works with Linux/gcc/libc5)
-X11_PATH = /usr/X11
+X11_PATH = /usr/X11R6
 
 # specify directory for read-only game data (like graphics, sounds, levels)
 # default is '.', so you can play without installing game data somewhere
diff -rubB rocksndiamonds-2.0.0/src/Makefile rocksndiamonds-2.0.0-cygwin/src/Makefile
--- rocksndiamonds-2.0.0/src/Makefile	Mon Jan  1 18:02:21 2001
+++ rocksndiamonds-2.0.0-cygwin/src/Makefile	Sat Oct 13 15:00:35 2001
@@ -6,13 +6,16 @@
 .EXPORT_ALL_VARIABLES:
 
 ifndef PLATFORM			# platform not specified -- try auto detection
+ifeq ($(OSTYPE),cygwin)	# MS-DOS native compiling
+PLATFORM = unix 
+else 
 ifdef COMSPEC
 PLATFORM = msdos
 else
 PLATFORM = unix
 endif
 endif
-
+endif 
 ifdef X11_PATH			# path to X11 specified by top level Makefile
 XINC_PATH = $(X11_PATH)/include
 XLIB_PATH = $(X11_PATH)/lib
diff -rubB rocksndiamonds-2.0.0/src/libgame/sound.h rocksndiamonds-2.0.0-cygwin/src/libgame/sound.h
--- rocksndiamonds-2.0.0/src/libgame/sound.h	Sat Dec 16 21:07:58 2000
+++ rocksndiamonds-2.0.0-cygwin/src/libgame/sound.h	Sat Oct 13 16:39:34 2001
@@ -22,7 +22,9 @@
 #include <sys/ioctl.h>
 #endif
 
-#if defined(PLATFORM_LINUX)
+#if defined(__CYGWIN__)
+#include <sys/soundcard.h>
+#elif defined(PLATFORM_LINUX)
 #include <linux/soundcard.h>
 #elif defined(PLATFORM_FREEBSD)
 #include <machine/soundcard.h>
@@ -33,7 +35,7 @@
 #include "system.h"
 
 
-#if defined(PLATFORM_LINUX) || defined(PLATFORM_FREEBSD) || defined(VOXWARE)
+#if defined(PLATFORM_LINUX) || defined(PLATFORM_FREEBSD) || defined(VOXWARE) || defined(__CYGWIN__)
 #define AUDIO_STREAMING_DSP
 #endif
 
@@ -75,7 +77,9 @@
 #define MAX_SOUNDS_PLAYING			8
 #endif
 
-#if !defined(PLATFORM_HPUX)
+#if defined(__CYGWIN__)
+#define SND_BLOCKSIZE 16384
+#elif !defined(PLATFORM_HPUX)
 #define SND_BLOCKSIZE 4096
 #else
 #define SND_BLOCKSIZE 32768