[Qt4-preview-feedback] Buildkey does not contains carbon/cocoa on Mac

[Axel Jäger]

If you get mixed carbon and cocoa application to work, this would be a  
fine solution. But for now my plan was to have two different versions  
of the plugin in the same plugin path for Qt/cocoa and Qt/carbon and  
let Qt choose which one it wants to load. I think this is the more  
simple approach but relies on the backend in the buildkey. From what I  
have seen so far is that it is a good idea to make carbon the default  
(nothing additional in the buildkey) and put the word "cocoa" in the  
buildkey when the new backend is used because I see glichtches here  
and there in my application using the cocoa-backend. I will fill bug  
reports when I have digged in further.

Axel

Am 16.03.2009 um 22:30 schrieb Thiago Macieira:

> Trenton Schulz wrote:
>> On 2009-03-14 17:12:11 +0100, Axel Jäger <axel.jaeger at basyskom.de>  
>> said:
>>> Hi,
>>> I develop a plugin and over the years I got used to the very
>>> conservative Qt plugin loader that only loads a plugin when it is
>>> absolutely sure that the plugin will fit into the application  
>>> testing
>>> buildkey, configuration, version or whatever.
>>>
>>> Now I have two versions of Qt on my mac: One built with carbon, the
>>> other one with cocoa and I see that my cocoa application tries to  
>>> load
>>> a carbon plugin and it crashes. I'm wondering wether this should be
>>> case given the fact that the one and only reason for having such a
>>> mechanism is to prevent this situation.
>>
>> Ideally, one shouldn't have this problem, but we might have to  
>> include
>> this information. What does your crash log look like?
>
> I was thinking about this too. The cross-platform Qt API should be
> maintaining ABI compatibility between cocoa and carbon.
>
> However, there is Cocoa-specific API in the QMacCocoa* classes. So  
> yes, I
> think we need to add "cocoa" to the buildkey.
>
> -- 
> Thiago Macieira - thiago.macieira (AT) nokia.com
>  Senior Product Manager - Nokia, Qt Software
>      Sandakerveien 116, NO-0402 Oslo, Norway
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