[cairo] Cairo support for Mac OS 10.4

[G 3]

On Jan 13, 2017, at 4:14 AM, Andrea Canciani wrote:

> On Wed, Jan 11, 2017 at 7:05 AM, G 3 <programmingkidx at gmail.com>  
> wrote:
> There are still plenty of Mac OS 10.4 users out there who would  
> like to continue using the latest version of cairo. Please bring  
> back support for Mac OS 10.4.
>
> Last time this was discussed, there seemed to be little interest in  
> keeping 10.4 working, especially because over time it has become  
> increasingly harder to find a test environment. Do you happen to  
> have access to a CI solution that offers 10.4?
> Another option would be to have one of those 10.4 users involved in  
> the Quartz backend maintainance.
>
> For some previous discussion, see https://bugs.freedesktop.org/ 
> show_bug.cgi?id=84324
>
> In theory this commit should make cairo work on 10.4 again https:// 
> cgit.freedesktop.org/~ranma42/cairo/commit/?h=wip/ 
> restore-10.4&id=c2d111ecbf729fe1ecdfcc260f2c51cd3e96fe37
>
> Conversely, https://cgit.freedesktop.org/~ranma42/cairo/commit/? 
> h=wip/remove-10.4&id=66b5419704aa1971c77de764fd94b2f7d2a05b76 would  
> be a much-belated cleanup that could occur if support for 10.4 was  
> explicitly and intentionally dropped.
>
> Andrea

Thank you very much for this information. Given the very few  
differences between the Mac OS 10.4 code and the newer code, why not  
support both? I few #ifdef's would make this possible.