[cairo] Failures using user-font backend

[Behdad Esfahbod]

On 06/30/2010 02:11 PM, Andrea Canciani wrote:
> 2) pthread-show-text crashes with an assertion on linux, but is fine on MacOS X.
>    This probably is caused by non-thread-safe code in the user-font
> backend or in scaled-font.

When I wrote user-font, I was very very careful about thread-safety.  And it
used to work.  Quite possibly has regressed since...


behdad