[cairo] patches for configure errors under MinGW, OS X deprecation warnings

[Bryce Harrington]

On Sun, Feb 08, 2015 at 01:10:16PM +0100, Andrea Canciani wrote:
> On Sun, Feb 8, 2015 at 11:17 AM, Ryan Schmidt <cairo-2015 at ryandesign.com>
> wrote:
> > Would it be possible to keep the previous code for OS X 10.4 and use the
> > new code on OS X 10.5 and newer?
> >
> 
> It is possible to do that, but testing on 10.4 is becoming pretty hard (I
> have no such environment and I'm afraid that Mozilla is not testing anymore
> on such an old OS). In the bugreport the agreement seemed to be that 10.4
> is too old to be supported. Its removal would also allow for a significant
> cleanup, as 10.4 is missing blend operators.
> 
> I am unsure what the best course is... Chris, Bryce, what are your opinions
> on this?

On the Linux distro side, LTS releases typically are supported no more
than 5 years, so Ubuntu's 8.04 Hardy Heron released in 2008 was no
longer supported as of 2013.  If someone asked about a Cairo problem
that was specific to Hardy and not an issue as of Lucid (10.04), I'm
fairly sure we'd close the bug with a recommendation to upgrade.

Wikipedia shows OS X 10.4 released in 2003 with final point release in
2007.  OS X 10.5 was released in 2007, with its last release in 2009.
I suppose OS X is a bit different than a Linux distro in that users
actually have to pay money for the upgrades, but that's sort of the
deal with the devil they made picking proprietary software.

In Inkscape we require 10.5 or newer, and I think we've required that
for a while.  On the Linux side we support LTS's from 2012 and newer;
maybe a bit older for Fedora, I forget.

I don't know if we have an established policy in Cairo, but setting a
expectation of an OS from 2008 or newer seems adequately conservative
for an established system library.  Seven years is longer than most
LTS's and probably beyond the typical lifespan of most consumer
hardware.

So, my opinion is yes, I think we can bid 10.4 adieu.

Bryce