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diff --git a/lib/openat.h b/lib/openat.h
deleted file mode 100644
index 68c7df0..0000000
--- a/lib/openat.h
+++ /dev/null
@@ -1,126 +0,0 @@
-/* provide a replacement openat function
-   Copyright (C) 2004, 2005, 2006, 2008 Free Software Foundation, Inc.
-
-   This program is free software: you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3 of the License, or
-   (at your option) any later version.
-
-   This program 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 General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
-
-/* written by Jim Meyering */
-
-#include <fcntl.h>
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <dirent.h>
-#include <unistd.h>
-#include <stdbool.h>
-
-#ifndef __attribute__
-# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8)
-#  define __attribute__(x) /* empty */
-# endif
-#endif
-
-#ifndef ATTRIBUTE_NORETURN
-# define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
-#endif
-
-/* Work around a bug in Solaris 9 and 10: AT_FDCWD is positive.  Its
-   value exceeds INT_MAX, so its use as an int doesn't conform to the
-   C standard, and GCC and Sun C complain in some cases.  If the bug
-   is present, undef AT_FDCWD here, so it can be redefined below.  */
-#if 0 < AT_FDCWD && AT_FDCWD == 0xffd19553
-# undef AT_FDCWD
-#endif
-
-/* Use the same bit pattern as Solaris 9, but with the proper
-   signedness.  The bit pattern is important, in case this actually is
-   Solaris with the above workaround.  */
-#ifndef AT_FDCWD
-# define AT_FDCWD (-3041965)
-#endif
-
-/* Use the same values as Solaris 9.  This shouldn't matter, but
-   there's no real reason to differ.  */
-#ifndef AT_SYMLINK_NOFOLLOW
-# define AT_SYMLINK_NOFOLLOW 4096
-# define AT_REMOVEDIR 1
-#endif
-
-#ifdef __OPENAT_PREFIX
-
-# undef openat
-# define __OPENAT_CONCAT(x, y) x ## y
-# define __OPENAT_XCONCAT(x, y) __OPENAT_CONCAT (x, y)
-# define __OPENAT_ID(y) __OPENAT_XCONCAT (__OPENAT_PREFIX, y)
-# define openat __OPENAT_ID (openat)
-int openat (int fd, char const *file, int flags, /* mode_t mode */ ...);
-int openat_permissive (int fd, char const *file, int flags, mode_t mode,
-		       int *cwd_errno);
-# if ! HAVE_FDOPENDIR
-#  define fdopendir __OPENAT_ID (fdopendir)
-# endif
-DIR *fdopendir (int fd);
-# define fstatat __OPENAT_ID (fstatat)
-int fstatat (int fd, char const *file, struct stat *st, int flag);
-# define unlinkat __OPENAT_ID (unlinkat)
-int unlinkat (int fd, char const *file, int flag);
-bool openat_needs_fchdir (void);
-
-#else
-
-# define openat_permissive(Fd, File, Flags, Mode, Cwd_errno) \
-    openat (Fd, File, Flags, Mode)
-# define openat_needs_fchdir() false
-
-#endif
-
-#if HAVE_OPENAT && ! LSTAT_FOLLOWS_SLASHED_SYMLINK
-int rpl_fstatat (int fd, char const *file, struct stat *st, int flag);
-# if !COMPILING_FSTATAT
-#  undef fstatat
-#  define fstatat rpl_fstatat
-# endif
-#endif
-
-int mkdirat (int fd, char const *file, mode_t mode);
-void openat_restore_fail (int) ATTRIBUTE_NORETURN;
-void openat_save_fail (int) ATTRIBUTE_NORETURN;
-int fchmodat (int fd, char const *file, mode_t mode, int flag);
-int fchownat (int fd, char const *file, uid_t owner, gid_t group, int flag);
-
-/* Using these function names makes application code
-   slightly more readable than it would be with
-   fchownat (..., 0) or fchownat (..., AT_SYMLINK_NOFOLLOW).  */
-static inline int
-chownat (int fd, char const *file, uid_t owner, gid_t group)
-{
-  return fchownat (fd, file, owner, group, 0);
-}
-
-static inline int
-lchownat (int fd, char const *file, uid_t owner, gid_t group)
-{
-  return fchownat (fd, file, owner, group, AT_SYMLINK_NOFOLLOW);
-}
-
-static inline int
-chmodat (int fd, char const *file, mode_t mode)
-{
-  return fchmodat (fd, file, mode, 0);
-}
-
-static inline int
-lchmodat (int fd, char const *file, mode_t mode)
-{
-  return fchmodat (fd, file, mode, AT_SYMLINK_NOFOLLOW);
-}