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diff --git a/win32/include/dos.h b/win32/include/dos.h
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+/*
+ * dos.h
+ *
+ * DOS-specific functions and structures.
+ *
+ * This file is part of the Mingw32 package.
+ *
+ * Contributors:
+ * Created by J.J. van der Heijden <J.J.vanderHeijden@student.utwente.nl>
+ *
+ * THIS SOFTWARE IS NOT COPYRIGHTED
+ *
+ * This source code is offered for use in the public domain. You may
+ * use, modify or distribute it freely.
+ *
+ * This code is distributed in the hope that it will be useful but
+ * WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
+ * DISCLAIMED. This includes but is not limited to warranties of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * $Revision: 1.1 $
+ * $Author: bellard $
+ * $Date: 2005/04/14 23:49:21 $
+ *
+ */
+
+#ifndef __STRICT_ANSI__
+
+#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
+
+unsigned _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_ */
+
+#endif /* Not __STRICT_ANSI__ */
+