--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/fuhtark_test/include/unistd.h	Wed Nov 26 21:36:48 2025 +0700
@@ -0,0 +1,56 @@
+/**
+ * This file has no copyright assigned and is placed in the Public Domain.
+ * This file is part of the w64 mingw-runtime package.
+ * No warranty is given; refer to the file DISCLAIMER within this package.
+ */
+#ifndef _UNISTD_H
+#define _UNISTD_H
+#define __UNISTD_H_SOURCED__ 1
+
+#include <io.h>
+#include <process.h>
+
+#define __UNISTD_GETOPT__
+#include <getopt.h>
+#undef __UNISTD_GETOPT__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef __NO_ISOCEXT
+#include <sys/types.h> /* For useconds_t. */
+
+int __cdecl __MINGW_NOTHROW usleep(useconds_t useconds);
+#endif
+
+#ifndef FTRUNCATE_DEFINED
+#define FTRUNCATE_DEFINED
+   /* This is defined as a real library function to allow autoconf
+      to verify its existence. */
+#if !defined(NO_OLDNAMES) || defined(_POSIX)
+  int ftruncate(int, off_t);
+#ifndef __CRT__NO_INLINE
+  __CRT_INLINE int ftruncate(int __fd, off_t __length)
+  {
+    return _chsize (__fd, __length);
+  }
+#endif /* !__CRT__NO_INLINE */
+#else
+  int ftruncate(int, _off_t);
+#ifndef __CRT__NO_INLINE
+  __CRT_INLINE int ftruncate(int __fd, _off_t __length)
+  {
+    return _chsize (__fd, __length);
+  }
+#endif /* !__CRT__NO_INLINE */
+#endif
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#undef __UNISTD_H_SOURCED__
+#endif /* _UNISTD_H */
+