On Aug 15, 2011, at 11:19 AM, Martin Hewitson wrote:
>
> On Aug 15, 2011, at 08:13 PM, David Duncan wrote:
>
>> On Aug 15, 2011, at 10:56 AM, Martin Hewitson wrote:
>>
>>> Is it ok to declare a property to be NSPopover, even if that class doesn't
>>> exist on 10.6?
>>
>> Yes. Using a class as a data type doesn't create linkage.
>>
>>> I tried the
>>>
>>> if ([NSPopover class]) {}
>>>
>>> trick, but I get the same error when running on 10.6.8. I'll try some more
>>> in case I made a mistake, but….
>>
>>
>> But again, are you building with Clang? :).
>
> No, the project is set to use "System default (LLVM GCC 4.2)". You would
> rather recommend "Apple LLVM compiler 2.1" ?
You can either use LLVM Compiler (aka Clang, I forget that it was renamed in
Xcode!) or you can use the NSClassFromString I mentioned earlier. Either will
solve the problem, but weak linked classes are only supported in LLVM/Clang.
--
David Duncan
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