[cairo] Compiling on old Linuxes

[Zack Weinberg]

Carl Worth <cworth at cworth.org> wrote:
> 
> Cairo asks the X server what version of the protocol it actually
> supports, (independent of what version of the library cairo was
> compiled against), and cairo then avoids using any Render requests
> newer than supported. Of course, we could always have bugs in that,
> but it *should* work, (and any such bugs would be fairly trivial to
> fix).

That turns out not to be the case... for instance, we're still looking
for a good solution to
https://bugzilla.mozilla.org/show_bug.cgi?id=468496#c11
(the actual bug is in the X video drivers, and Render can't tell Cairo
whether it's using one of the buggy ones)

zw