1/* Copyright (C) 2002-2021 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
4
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.
9
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.
14
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/>. */
18
19#include <pthreadP.h>
20
21#if IS_IN (libc)
22# ifndef TLS_MULTIPLE_THREADS_IN_TCB
23/* Variable set to a nonzero value either if more than one thread runs or ran,
24 or if a single-threaded process is trying to cancel itself. See
25 nptl/descr.h for more context on the single-threaded process case. */
26int __libc_multiple_threads;
27libc_hidden_data_def (__libc_multiple_threads)
28# endif
29#endif
30