CMake Xcode generator uses no longer supported options

Question

I'm trying to make a Xcode project from the Insight Toolkit (ITK, itk.org). I issued the following command into the terminal:

ccmake -DCMAKE_C_COMPILER=/Applications/Xcode.app/Contents/Developer/usr/bin/gcc -DCMAKE_CXX_COMPILER=/Applications/Xcode.app/Contents/Developer/usr/bin/g++ -GXcode /<path to source>

When I try to generate the project it fails with this error:

CMake Error at /Applications/CMake 2.8-7.app/Contents/share/cmake-2.8/Modules/CMakeTestCCompiler.cmake:52 (MESSAGE):

The C compiler "/Applications/Xcode.app/Contents/Developer/usr/bin/gcc" is not able to compile a simple test program.

It fails with the following output:

Change Dir: /<path to destination folder>/CMakeFiles/CMakeTmp

Run Build Command:/Applications/CMake\ 2.8-7.app/Contents/bin/cmakexbuild -project CMAKE_TRY_COMPILE.xcode build -target cmTryCompileExec -buildstyle Development

xcodebuild: error: option '-buildstyle' is no longer supported

How can I configure the call to cmakexbuild? I haven't found a respective entry in the CMake configuration menu.

I have found similar problems from other users with other projects so I assume it's a problem with the CMake configuration.

I'm using Xcode 4.3 and CMake 2.8.7 on Mac OS X Lion 10.7.3.

Thanks for your help,

Paul

Answer 1

It's a CMake bug and it seem to be been fixed in development version:

http://public.kitware.com/Bug/view.php?id=12621

Answer 2

You can fix this by telling OSX which version of Xcode you want to use. If you installed 4.3, it has moved to the Apps folder, along with all the tools. Previously they were all in /Developer. Do the following and try again.

sudo /usr/bin/xcode-select -switch /Applications/Xcode.app/Contents/Developer

You may also have to install the command-line tools. I already installed these so I don't know what will happen without them.