clarify the purpose of this project
[nyanglibc.git] / include / regexp.h
blob923030ef1e4a71b26ae47d46cd77a615b568d0a6
1 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
19 #ifndef _REGEXP_H
20 #define _REGEXP_H 1
22 /* The contents of this header file were originally standardized in
23 the Single Unix Specification, Issue 3 (1992). In Issue 4 (1994)
24 the header was marked as TO BE WITHDRAWN, and new applications
25 were encouraged to use <regex.h> instead. It was officially
26 withdrawn from the standard in Issue 6 (aka POSIX.1-2001).
28 The GNU C Library provided this header through version 2.22. */
30 #error "The GNU C Library no longer implements <regexp.h>."
31 #error "Please update your code to use <regex.h> instead (no trailing 'p')."
33 #endif /* regexp.h */