[PATCH weston] configure.ac: bump libdrm requirement to 2.4.68

[Emil Velikov]

On 2 July 2018 at 03:07, Peter Hutterer <peter.hutterer at who-t.net> wrote:
> On Mon, Jun 11, 2018 at 11:02:19AM +0100, Daniel Stone wrote:
>> Hi,
>>
>> On 11 June 2018 at 10:25, Pekka Paalanen <ppaalanen at gmail.com> wrote:
>> > On Mon, 11 Jun 2018 09:29:49 +1000
>> > Peter Hutterer <peter.hutterer at who-t.net> wrote:
>> >> +PKG_CHECK_MODULES(LIBDRM, [libdrm >= 2.4.68], [], [AC_MSG_ERROR([
>> >>       libdrm is a hard build-time dependency for libweston core,
>> >>       but a sufficient version was not found. However, libdrm
>> >>       is not a runtime dependency unless you have features
>> >
>> > this patch is correct, but I would like to hear more opinions if we
>> > want to bump the hard build-time dependency from release of Jan 2012 to
>> > Apr 2016.
>> >
>> > If we do this bump, we could remove the fallback definitions for
>> > DRM_FORMAT_R8 and DRM_FORMAT_GR88.
>> >
>> > In case we want to consider bumping even further, DRM_FORMAT_MOD_* were
>> > introduced in 2.4.83 (Aug 2017), and atomic in 2.4.78 (Apr 2017).
>>
>> I'd be in favour of bumping all the way to .83. It's available in
>> Debian testing and unstable, as well as for stable (stretch) via the
>> backports.debian.org repository. It's available for Ubuntu 16.04 LTS
>> via the xenial-updates repository, and releases since. It's available
>> in Yocto Rocko (Oct 2017), but unsurprisingly not in Pyro (May 2017);
>> I believe there are a few BSPs based on Pyro and earlier still, but
>> they would be pretty trivial bumps to include if vendors want to
>> upgrade Weston.
>>
>> Either patch is:
>> Acked-by: Daniel Stone <daniels at collabora.com>
>
> pekka: gentle ping, if you're happy with this one
>
On Debian front:
- oldstable: 2.4.74 in backports
- stable: 2.4.74 in main, 2.4.91 in backports

Ubuntu:
 - 16.04: 2.4.83 in xenial-updates
 - 14.04: 2.4.67 in trusty-updates

In other words, Trusty is def. out of the question: I'd go with this
patch for now to unblock.
Might want to bump to .83 closer to the release/branch point.

-Emil