Add an unpatched version of xz, XZ Utils, to /trunk/deps/third_party

xz/src/common/tuklib_exit.h

+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file       tuklib_exit.h
+/// \brief      Close stdout and stderr, and exit
+/// \note       Requires tuklib_progname and tuklib_gettext modules
+//
+//  Author:     Lasse Collin
+//
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef TUKLIB_EXIT_H
+#define TUKLIB_EXIT_H
+
+#include "tuklib_common.h"
+TUKLIB_DECLS_BEGIN
+
+#define tuklib_exit TUKLIB_SYMBOL(tuklib_exit)
+extern void tuklib_exit(int status, int err_status, int show_error)
+                tuklib_attr_noreturn;
+
+TUKLIB_DECLS_END
+#endif