diff --git a/sc2/build/unix/README.crossbuild b/sc2/build/unix/README.crossbuild
index 8b6501771..2c3e60bff 100644
--- a/sc2/build/unix/README.crossbuild
+++ b/sc2/build/unix/README.crossbuild
@@ -38,9 +38,9 @@ library dirs in LDFLAGS.
 
 Run configure:
 	./build.sh uqm config
-This will produce the file 'build.vars' and 'config_unix.h'. If there
-are any problems during the build, you can usually easilly solve them
-by editing these files manually.
+This will produce the file 'build.vars' and 'config_unix.h' (or config_win.h
+on MinGW or Cygwin). If there are any problems during the build, you can
+usually easilly solve them by editing these files manually.
 
 Start the compilation:
 	./build.sh uqm
diff --git a/sc2/build/unix/build.config b/sc2/build/unix/build.config
index 23ed862dd..06fc4d3a4 100644
--- a/sc2/build/unix/build.config
+++ b/sc2/build/unix/build.config
@@ -236,9 +236,16 @@ uqm_process_config() {
 	CFLAGS="$CFLAGS -I \"$BUILD_WORK\""
 
 	# Export the HAVE_ symbols to config_unix.h, using config_unix.h.in
-	# as template.
+	# as template (or config_win.h/config_win.h.in).
 	SUBSTITUTE_VARS="$HAVE_SYMBOLS CONTENTDIR"
-	SUBSTITUTE_FILES="config_unix.h"
+	case "$HOST_SYSTEM" in
+		MINGW32*|CYGWIN*)
+			SUBSTITUTE_FILES="config_win.h"
+			;;
+		*)
+			SUBSTITUTE_FILES="config_unix.h"
+			;;
+	esac
 	substitute_vars SUBSTITUTE_VARS SUBSTITUTE_FILES src "$BUILD_WORK"
 
 	# Make build.vars from build.vars.in, substituting variables.
@@ -379,4 +386,15 @@ uqm_install_osx() {
 	cp $uqm_NAME "$INSTROOT/MacOS/The Ur-Quan Masters"
 }
 
+uqm_clean() {
+	case "$HOST_SYSTEM" in
+		MINGW32*|CYGWIN*)
+			rm -f "$BUILD_WORK/config_win.h"
+			;;
+		*)
+			rm -f "$BUILD_WORK/config_unix.h"
+			;;
+	esac
+}
+
 
diff --git a/sc2/build/unix/build_functions b/sc2/build/unix/build_functions
index 732278029..53f63d022 100644
--- a/sc2/build/unix/build_functions
+++ b/sc2/build/unix/build_functions
@@ -130,7 +130,8 @@ build_clean() {
 
 	eval DEPEND_FILE="\$BUILD_WORK/\${${BUILD_PROJECT}_OBJS}${DEPEND_NAME}"
 	rm -f "$DEPEND_FILE" "$BUILD_WORK/build.vars" \
-			"$BUILD_WORK/config.state" "$BUILD_WORK/config_unix.h"
+			"$BUILD_WORK/config.state"
+	eval "${TARGET}_clean"
 }
 
 build_cleanall() {
diff --git a/sc2/src/config.h b/sc2/src/config.h
index 3180203ef..51e673a01 100644
--- a/sc2/src/config.h
+++ b/sc2/src/config.h
@@ -7,6 +7,10 @@
 	 * If you want anything else than the defaults, you'll have to edit
 	 * that file manually. */
 #	include "msvc++/config.h"
+#elif defined (__MINGW32__) || defined (__CYGWIN__)
+	/* If we're compiling on MS Windows using build.sh, use
+	 * config_win.h, generated from * src/config_win.h.in. */
+#	include "config_win.h"
 #else
 	/* If we're compiling in unix, use config_unix.h, generated from
 	 * src/config_unix.h.in by build.sh. */
diff --git a/sc2/src/config_unix.h.in b/sc2/src/config_unix.h.in
index 03dbf92ea..12550c7b5 100644
--- a/sc2/src/config_unix.h.in
+++ b/sc2/src/config_unix.h.in
@@ -1,8 +1,10 @@
 /* This file contains some compile-time configuration options for *nix
  * systems.
  * config_unix.h is generated from config_unix.h.in by build.sh
- * For windows, you'll have to edit src/msvc++/config.h manually
- * if you want anything else than the defaults.
+ * When building on MS Windows using build.sh (MinGW, Cygwin),
+ * config_win.h is generated from src/config_win.h.in.
+ * When using MSVC on MS Windows, you'll have to edit src/msvc++/config.h
+ * manually if you want anything else than the defaults.
  */
 
 #ifndef _CONFIG_UNIX_H
diff --git a/sc2/src/config_win.h.in b/sc2/src/config_win.h.in
new file mode 100644
index 000000000..b95c88107
--- /dev/null
+++ b/sc2/src/config_win.h.in
@@ -0,0 +1,58 @@
+/* This file contains some compile-time configuration options for MS Windows
+ * systems when building using build.sh (MinGW, Cygwin).
+ * config_win.h is generated from src/config_win.h.in by build.sh
+ * For building using MSVC, you'll have to edit src/msvc++/config.h manually
+ * if you want anything else than the defaults.
+ * For *nix systems, config_unix.h is used, which is generated by build.sh
+ * from src/config_unix.h.in.
+ */
+
+#ifndef _CONFIG_WIN_H
+#define _CONFIG_WIN_H
+
+/* Directory where the UQM game data is located */
+#define CONTENTDIR "@CONTENTDIR@"
+
+/* Directory where game data will be stored */
+//#define USERDIR "../userdata/"
+#define USERDIR "%APPDATA%/uqm/"
+
+/* Directory where config files will be stored */
+#define CONFIGDIR USERDIR
+
+/* Directory where supermelee teams will be stored */
+#define MELEEDIR "%UQM_CONFIG_DIR%teams/"
+
+/* Directory where save games will be stored */
+#define SAVEDIR "%UQM_CONFIG_DIR%save/"
+
+/* Defined if words are stored with the most significant byte first */
+@WORDS_BIGENDIAN@
+
+/* Defined if your system has readdir_r of its own */
+@HAVE_READDIR_R@
+
+/* Defined if your system has setenv of its own */
+@HAVE_SETENV@
+
+/* Defined if your system has strupr of its own */
+@HAVE_STRUPR@
+
+/* Defined if your system has stricmp of its own */
+@HAVE_STRICMP@
+
+/* Defined if your system has getopt.h */
+@HAVE_GETOPT_H@
+
+/* Defined if your system has iswgraph of its own*/
+@HAVE_ISWGRAPH@
+
+/* Defined if your system has wchar_t of its own */
+@HAVE_WCHAR_T@
+
+/* Defined if your system has wint_t of its own */
+@HAVE_WINT_T@
+
+#endif  /* _CONFIG_WIN_H */
+
+
diff --git a/sc2/src/msvc++/config.h b/sc2/src/msvc++/config.h
index dd4271f93..3307762aa 100644
--- a/sc2/src/msvc++/config.h
+++ b/sc2/src/msvc++/config.h
@@ -1,8 +1,10 @@
 /* This file contains some compile-time configuration options for MS Windows
- * systems.
+ * systems when building using MSVC.
  * Change the values below if you want anything other than the defaults.
- * For *nix systems, src/config.h is used, which is generated by
- * build.sh from src/config.h.in.
+ * For *nix systems, config_unix.h is used, which is generated by build.sh
+ * from src/config_unix.h.in.
+ * When building on MS Windows using build.sh (MinGW, Cygwin),
+ * config_win.h is generated from src/config_win.h.in.
  */
 
 #ifndef _CONFIG_H