OK, using Clang didn't help. I took out all the NSPopover code I'd added and
confirmed the app runs on 10.6.8. Then I added in the following snippet in to
an action message:
if ([NSPopover class]) {
NSPopover *p = [[[NSPopover alloc] init] autorelease];
}
recompiled with Xcode 4.1 on Lion and tested the app on 10.6.8 machine. It
doesn't run. Same error message.
Any further ideas? I'll try the NSClassFromString next.
Martin
On Aug 15, 2011, at 08:20 PM, David Duncan wrote:
> 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
>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Martin Hewitson
Albert-Einstein-Institut
Max-Planck-Institut fuer
Gravitationsphysik und Universitaet Hannover
Callinstr. 38, 30167 Hannover, Germany
Tel: +49-511-762-17121, Fax: +49-511-762-5861
E-Mail: martin.hewit...@aei.mpg.de
WWW: http://www.aei.mpg.de/~hewitson
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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