1/* Copyright (C) 2002-2022 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#include <pthreadP.h>
19
20#if IS_IN (libc)
21# ifndef TLS_MULTIPLE_THREADS_IN_TCB
22/* Variable set to a nonzero value either if more than one thread runs or ran,
23 or if a single-threaded process is trying to cancel itself. See
24 nptl/descr.h for more context on the single-threaded process case. */
25int __libc_multiple_threads;
26libc_hidden_data_def (__libc_multiple_threads)
27# endif
28#endif
29