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diff --git a/REORG.TODO/posix/bits/getopt_posix.h b/REORG.TODO/posix/bits/getopt_posix.h
new file mode 100644
index 0000000000..f9f3265a20
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+++ b/REORG.TODO/posix/bits/getopt_posix.h
@@ -0,0 +1,51 @@
+/* Declarations for getopt (POSIX compatibility shim).
+   Copyright (C) 1989-2017 Free Software Foundation, Inc.
+   Unlike the bulk of the getopt implementation, this file is NOT part
+   of gnulib.
+
+   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/>.  */
+
+#ifndef _GETOPT_POSIX_H
+#define _GETOPT_POSIX_H 1
+
+#if !defined _UNISTD_H && !defined _STDIO_H
+#error "Never include getopt_posix.h directly; use unistd.h instead."
+#endif
+
+#include <bits/getopt_core.h>
+
+__BEGIN_DECLS
+
+#if defined __USE_POSIX2 && !defined __USE_POSIX_IMPLICITLY \
+    && !defined __USE_GNU && !defined _GETOPT_H
+/* GNU getopt has more functionality than POSIX getopt.  When we are
+   explicitly conforming to POSIX and not GNU, and getopt.h (which is
+   not part of POSIX) has not been included, the extra functionality
+   is disabled.  */
+# ifdef __REDIRECT
+extern int __REDIRECT_NTH (getopt, (int ___argc, char *const *___argv,
+				    const char *__shortopts),
+			   __posix_getopt);
+# else
+extern int __posix_getopt (int ___argc, char *const *___argv,
+			   const char *__shortopts)
+  __THROW __nonnull ((2, 3));
+#  define getopt __posix_getopt
+# endif
+#endif
+
+__END_DECLS
+
+#endif /* getopt_posix.h */