[cairo] What does it take to get a make check to pass with the xcb target, using CAIRO_REF_DIR?

[Bryce Harrington]

On Sun, Jul 10, 2016 at 11:18:28AM +1200, Lawrence D'Oliveiro wrote:
> On Sat, 9 Jul 2016 21:41:22 +0930, Adrian Johnson wrote:
> 
> > The image backend output has dependencies on pixman, freetype, and the
> > fonts used. ...
> > 
> > I've considered adding a test that checks the md5 of the fonts used.

Or, as someone already proposed I think, just include a snapshot of the
font, and maybe update it along with the reference image updates?

> This may not be enough. There have been some changes in the rendering
> behaviour of FreeType.

Do you have more details?  That sounds like something that might account
for a large share of image mismatches...

Bryce