[ruby-gnome2-devel-en] Compile against Gtk 3.18 on windows

[ARNAUD S. <Sim...@an...>]

Hi

Following those bugs I reported :

https://github.com/rcairo/rcairo/issues/41
https://github.com/ruby-gnome2/ruby-gnome2/issues/849

I'm wondering if it would be possible to provide ruby-gtk3 on windows compiled with Gtk 3.18, and
cairo 1.14.

If it's not possible, I would love pointers as how I can build them myself.

Right now, in my case, ruby-gtk3 has been unusable since 3.0.8. And 3.0.7 throws lots of warnings.

Regards

Simon Arnaud