1/* Copyright (C) 1996-2025 Free Software Foundation, Inc.
 2   This file is part of the GNU C Library.
 3
 4   The GNU C Library is free software; you can redistribute it and/or
 5   modify it under the terms of the GNU Lesser General Public
 6   License as published by the Free Software Foundation; either
 7   version 2.1 of the License, or (at your option) any later version.
 8
 9   The GNU C Library is distributed in the hope that it will be useful,
10   but WITHOUT ANY WARRANTY; without even the implied warranty of
11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12   Lesser General Public License for more details.
13
14   You should have received a copy of the GNU Lesser General Public
15   License along with the GNU C Library; if not, see
16   <https://www.gnu.org/licenses/>.  */
17
18#ifndef _REGEXP_H
19#define _REGEXP_H	1
20
21/* The contents of this header file were originally standardized in
22   the Single Unix Specification, Issue 3 (1992).  In Issue 4 (1994)
23   the header was marked as TO BE WITHDRAWN, and new applications
24   were encouraged to use <regex.h> instead.  It was officially
25   withdrawn from the standard in Issue 6 (aka POSIX.1-2001).
26
27   The GNU C Library provided this header through version 2.22. */
28
29#error "The GNU C Library no longer implements <regexp.h>."
30#error "Please update your code to use <regex.h> instead (no trailing 'p')."
31
32#endif /* regexp.h */