[CMake] Status of clang support?

[Mateusz Loskot]

On 25/10/10 01:38, Mateusz Loskot wrote:
> On 24/10/10 23:00, Ryan Pavlik wrote:
>> My best guess would be to check for some Clang-specific defines,
>> similar to the platform checks.  Actually, it looks like in the Git
>> repository of CMake, there is now some Clang-specific support:
>> http://github.com/Kitware/CMake/commit/571dc7489111893355deba710feee5990bce92e4
>> I think that this commit is included in 2.8.2.
> 
> Ryan,
> 
> It's very good to know.
> 
>> I've made a note on that commit as to where I think a Clang-specific
>> variable might be set.
> 
> I've seen, great!
> 
>> For now, you might be able to look at the
>> value of CMAKE_CXX_COMPILER_ID for a more general solution - it seems
>> like that might contain "Clang" if building using Clang.
> 
> I'm having access to CMake 2.8.0 at this moment
> And, this version sets CMAKE_CXX_COMPILER_ID to GNU, even if
> C/C++ compilers set to clang:
> 
> cmake -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++
> 
> Also, simple test always reports the "gnu".
> 
> if("${CMAKE_CXX_COMPILER_ID}" MATCHES "clang")
>   message(STATUS "clang")
> elseif("${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU")
>   message(STATUS "gnu")
> endif()
> 
> I will try 2.8.2 soon.
> 
> Thanks for your help!

FYI,

I have tried clang 2.9 (current SVN trunk)
together with CMake from current git.

The compiler ID matching works perfectly well!

Thanks again!

Best regards,
-- 
Mateusz Loskot, http://mateusz.loskot.net
Charter Member of OSGeo, http://osgeo.org
Member of ACCU, http://accu.org