Bug#883307: mutter: missing gles2 support since clutter integration

[Laurent Bigonville]

On Sat, 02 Dec 2017 03:14:36 +0100 Alban Browaeys <prahal at yahoo.com> wrote:
 >
 > Dear Maintainer,
 > Since upstream embedded a forked of clutter/cogl and the gles2 flag was
 > not ported from clutter/cogl to mutter, we lack gles2 support.
 >
 > The other issue was fixed upstream and have reached debian a while
 > ago so this is the last stone on the gnome side.
 > This was https://bugzilla.gnome.org/show_bug.cgi?id=771636
 > included in 3.24.1.
 >
 > Attached is a diff to debian/rules that add --enable-gles2 .
 > Tested on Intel Haswell (glx + gnome-shell wayland) and ARM Odroid U2

 > (gles2 over Mali blob + gnome-shell Xorg - custom kernel and xorg ddx)

I'm not 100% sure this is enough.

There are other options in that are passed at configure time in cogl 
(and also clutter) package that we should also maybe pass here (like the 
default driver which is different for arm platform)