GTK2 & Cairo "Quartz" Variant

[Baz]

Posting to that thread a bit late (only just jumped on the list) -
Ryan Schmidt, you said:

> Note that cairo 1.4.0 has been released and that the cairo portfile will soon be updated --
> just as soon as we can figure out how to enable the quartz backend without having to
> disable the xlib backend, which is unfortunately the current situation with 1.4.0 [1].

Theres a patch here:
https://bugs.freedesktop.org/show_bug.cgi?id=10407

I'm fairly certain that some version of this fix will make it into the
next developer snapshot, but if you want to use the patch in the
portfile for the last full release, be my guest.

One thing to watch out for is that if you use this and enable both
quartz and atsui by default, then atsui will be used by the toy api in
xlib as well - with ugly results. Toy font selection is much worse in
atsui. but shouldn't affect anything using the real api, eg via Pango.
 Nothing should be relying on bling from that api anyway - its there
for testing.

Cheers,
Baz