[CMake] Xcode generator problems

[Brad King]

Axel Roebel wrote:
> Thanks, in fact I found the problem!
> It is due to the repeated call of CollapseFullPath ("") which is used to 
> determine the current absolute path cmDependsC.cxx
> for each dependency file with absolute path.
> 
> This call is extremely costly on the mac. And it seems completely unnecessary 
> because the current directory is never changed
> in cmDependsC.cxx. Initialization of the otherwise  unused member Directory  
> with the current directory and elemination of  CollapseFullPath 
> reduced  dependency determination on the mac from 2 minutes too 8 seconds.
> This is even faster than for cmake 2.2.3. 
> 
> I have send a patch for closer inspection of the solution
> via the bug tracker.

Thanks.  I've fixed it.  See this for details:

http://www.cmake.org/Bug/bug.php?op=show&bugid=3191

-Brad