[cmake-developers] CMake, Xcode 4.4, and Mountain Lion

[Ho Cheung]

If this is the case, how would one go about enabling compiler options specifically for Xcode?

My project currently supports gcc and msvc which I check with CMAKE_COMPILER_IS_GNUCC or MSVC variables respectively.

Since Xcode uses clang but CMAKE_C_COMPILER is set to gcc, the gcc compiler flags are being passed to clang.

-Ho

On Jul 26, 2012, at 12:10 PM, Ho Cheung <hocheung20 at gmail.com> wrote:

> Hi developers,
> 
> As some of you have heard, Apple released Mountain Lion yesterday alongside a new release of Xcode (4.4).
> 
> Back in XCode 4.2, Apple decided to make the clang/LLVM compiler the default in XCode
> 
> Whenever I run the Xcode generator and Configure my project, I noticed that CMAKE_C_COMPILER is pointing to /usr/bin/gcc. However, when I open the project up in Xcode, I noticed that the compiler is still set to Default (LLVM 3.0) and all the messages indicate that clang is being run.
> 
> I'm not sure this behavior is new to Xcode 4.4 or Mountain Lion or regresses back to Lion/Xcode 4.3 as I haven't used Xcode for development of my project since Snow Leopard/Xcode 3.x.
> 
> Could anyone advise?
> 
> Thanks,
> 
> Ho Cheung