making cairo mandatory in vcl

[Riccardo Magliocchetti]

Hi Caolàn, all,

in [0] and [1] you made cairo mandatory for *nix platforms. This breaks 
--without-x but that's no big deal, i'll add some specific ifdefery.
I have a couple of questions:
- is there a plan to kill non cairo rendering?
- does it make sense to keep enable-cairo-canvas switch?

thanks

[0] 
http://cgit.freedesktop.org/libreoffice/core/commit/?id=81860b908b0c6104d47886a172b65d8d31f59ec3

[1] 
http://cgit.freedesktop.org/libreoffice/core/commit/?id=1e3e2eb70a13a70bacaecb8a5e60c8c374924642

-- 
Riccardo Magliocchetti
@rmistaken

http://menodizero.it