[hurd,commited] htl: Add missing fork.h

[Adhemerval Zanella]

On 23/03/2021 21:20, Samuel Thibault wrote:
> 2b47727c68b6 ("posix: Consolidate register-atfork") introduced a fork.h
> header to declare the atfork unregister hook, but was missing adding it
> for htl.
> 
> This fixes tst-atfork2.

Both lowlevellock.h and register-atfork.h are common headers,
I think it would be better to just add them to generic fork.h header.

> ---
>   sysdeps/htl/fork.h | 20 ++++++++++++++++++++
>   1 file changed, 20 insertions(+)
>   create mode 100644 sysdeps/htl/fork.h
> 
> diff --git a/sysdeps/htl/fork.h b/sysdeps/htl/fork.h
> new file mode 100644
> index 0000000000..9d0d1d2b41
> --- /dev/null
> +++ b/sysdeps/htl/fork.h
> @@ -0,0 +1,20 @@
> +/* Copyright (C) 2002-2021 Free Software Foundation, Inc.
> +   This file is part of the GNU C Library.
> +   Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
> +
> +   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
> +   <https://www.gnu.org/licenses/>.  */
> +
> +#include <lowlevellock.h>
> +#include <register-atfork.h>
>