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diff --git a/REORG.TODO/sysdeps/mach/hurd/errlist.c b/REORG.TODO/sysdeps/mach/hurd/errlist.c
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+++ b/REORG.TODO/sysdeps/mach/hurd/errlist.c
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+/* Copyright (C) 1998-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* sys_errlist cannot have Unix semantics on the Hurd, so it is easier just
+   to rename it.  We also need to remap error codes to array indices by
+   taking their subcode. */
+#define _sys_errlist_internal	_hurd_errlist
+#define _sys_nerr_internal	_hurd_nerr
+#define ERRLIST_NO_COMPAT	1
+
+#include <mach/error.h>
+#define ERR_REMAP(n) (err_get_code (n))
+
+#include <sysdeps/gnu/errlist.c>