diff -r 000000000000 -r 76b1f169d9fe mingw-5.1.4/win32/include/dos.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mingw-5.1.4/win32/include/dos.h	Fri Apr 03 17:16:45 2009 +0100
@@ -0,0 +1,89 @@
+/*
+ * dos.h
+ * This file has no copyright assigned and is placed in the Public Domain.
+ * This file is a part of the mingw-runtime package.
+ * No warranty is given; refer to the file DISCLAIMER within the package.
+ *
+ * DOS-specific functions and structures.
+ *
+ */
+
+#ifndef	_DOS_H_
+#define	_DOS_H_
+
+/* All the headers include this file. */
+#include <_mingw.h>
+
+#define __need_wchar_t
+#ifndef RC_INVOKED
+#include <stddef.h>
+#endif	/* Not RC_INVOKED */
+
+/* For DOS file attributes */
+#include <io.h>
+
+#ifndef RC_INVOKED
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef __MSVCRT__ /* these are in CRTDLL, but not MSVCRT */
+#ifndef __DECLSPEC_SUPPORTED
+extern unsigned int *_imp___basemajor_dll;
+extern unsigned int *_imp___baseminor_dll;
+extern unsigned int *_imp___baseversion_dll;
+extern unsigned int *_imp___osmajor_dll;
+extern unsigned int *_imp___osminor_dll;
+extern unsigned int *_imp___osmode_dll;
+
+#define _basemajor (*_imp___basemajor_dll)
+#define _baseminor (*_imp___baseminor_dll)
+#define _baseversion (*_imp___baseversion_dll)
+#define _osmajor (*_imp___osmajor_dll)
+#define _osminor (*_imp___osminor_dll)
+#define _osmode (*_imp___osmode_dll)
+
+#else /* __DECLSPEC_SUPPORTED */
+
+__MINGW_IMPORT unsigned int _basemajor_dll;
+__MINGW_IMPORT unsigned int _baseminor_dll;
+__MINGW_IMPORT unsigned int _baseversion_dll;
+__MINGW_IMPORT unsigned int _osmajor_dll;
+__MINGW_IMPORT unsigned int _osminor_dll;
+__MINGW_IMPORT unsigned int _osmode_dll;
+
+#define _basemajor _basemajor_dll
+#define _baseminor _baseminor_dll
+#define _baseversion _baseversion_dll
+#define _osmajor _osmajor_dll
+#define _osminor _osminor_dll
+#define _osmode _osmode_dll
+
+#endif /* __DECLSPEC_SUPPORTED */
+#endif /* ! __MSVCRT__ */
+
+#ifndef _DISKFREE_T_DEFINED
+/* needed by _getdiskfree (also in direct.h) */
+struct _diskfree_t {
+	unsigned total_clusters;
+	unsigned avail_clusters;
+	unsigned sectors_per_cluster;
+	unsigned bytes_per_sector;
+};
+#define _DISKFREE_T_DEFINED
+#endif  
+
+_CRTIMP unsigned __cdecl __MINGW_NOTHROW _getdiskfree (unsigned, struct _diskfree_t *);
+
+#ifndef	_NO_OLDNAMES
+# define diskfree_t _diskfree_t
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif	/* Not RC_INVOKED */
+
+#endif	/* Not _DOS_H_ */