Re: [PATCH COMMITTED] Switch IDNA implementation to libidn2 [BZ #19728] [BZ #19729] [BZ #22247]

[Florian Weimer <fweimer at redhat dot com>]

* Andreas Schwab:

> On Mai 23 2018, fweimer@redhat.com (Florian Weimer) wrote:
>
>> diff --git a/inet/idna.c b/inet/idna.c
>> new file mode 100644
>> index 0000000000..c561bf2e9e
>> --- /dev/null
>> +++ b/inet/idna.c
>> @@ -0,0 +1,182 @@
>> +/* IDNA functions, forwarding to implementations in libidn2.
>> +   Copyright (C) 2018 Free Software Foundation, Inc.
>> +   This file is part of the GNU C Library.
>> +
>> +   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
>> +   <http://www.gnu.org/licenses/>.  */
>> +
>> +#include <allocate_once.h>
>> +#include <dlfcn.h>
>> +#include <inet/net-internal.h>
>> +#include <netdb.h>
>> +#include <stdbool.h>
>> +
>> +/* Use the soname and version to locate libidn2, to ensure a
>> +   compatible ABI.  */
>> +#define LIBIDN2_SONAME "libidn2.so.0"
>
> That library no longer exists.

See <https://gitlab.com/libidn/libidn2/issues/63>.  The soname bump
appears unnecessary.  Let's wait a few days and see how libidn2 upstream
reacts.

Thanks,
Florian