[PATCH] specify minimum required version of GnuTLS

[Daniel Lenski]

On Wed, Jul 19, 2017 at 11:04 AM, David Woodhouse <dwmw2 at infradead.org> wrote:
> On Wed, 2017-07-19 at 10:47 -0700, Daniel Lenski wrote:
>> +  <ul>
>> +  <li>Recent versions of OpenConnect require GnuTLS v3.2 or
>> newer.</li>
>> +  </ul></li>
>
> If we're going to do that then at the very least we should update the
> pkg-config check in configure.ac accordingly. And there's a bunch of
> actual code to support 2.12 still, which we can rip out.
>
> Or it's probably actually a fairly minimal patch to fix it up to build
> again.

Right… I haven't actually looked into what's needed to get past
GNUTLS_E_TIMEDOUT not being defined, which is the currently
most-pressing impediment to building with 2.12.

I've just been telling people that they need to upgrade to 3.2 in
order to build OpenConnect.

> However little work it is, I'm certainly not averse to this being the
> last straw for killing 2.x support — I've been threatening that for
> ages anyway. I hadn't necessarily planned to go all the way to 3.2
> though. What platforms do we leave behind if we do *that*? Nikos?

My guess is that not very many people have been trying to build recent
official versions with GnuTLS 2.12… since I see many fewer questions
about this on the official mailing list than on
https://github.com/dlenski/openconnect/issues :-D

-Dan