[cmake-developers] Linking fails with CMake-2.8.8, but works with CMake-2.8.4 with Xcode generator

[David Cole]

On Thu, Jun 21, 2012 at 12:22 PM, Thomas Sondergaard <ts at medical-insight.com
> wrote:

> On 2012-06-21 17:23, David Cole wrote:
>
>> If you want it to work with iOS apps, then you have to set
>> CMAKE_XCODE_EFFECTIVE_**PLATFORMS as of its introduction, which was
>> version 2.8.6.
>>
>> That feature was introduced to enable seamless switching between
>> simulator and device builds, and to enable running in the debugger for
>> either.
>>
>
> OK, but I'm still a little mystified as everything builds fine without it,
> until you get to linking an executable with the output from a library
> target, and then CMake suddenly doesn't know where it put it?
>
> Thanks,
>
>
> Thomas
>
>
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Yes, CMake doesn't know where the file ends up because CMake doesn't know
which platform you've chosen within Xcode. Which is actually a problem for
install rules on such a project. See these open bug reports:

  http://public.kitware.com/Bug/view.php?id=12506
  http://public.kitware.com/Bug/view.php?id=12640

What we presently have was a bit of a compromise to quickly/easily enable
the switching and debugging behavior improvements within Xcode. It needs
more work to be a complete feature.


HTH,
David
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