[cmake-developers] C++11 and target_compiler_feature proposal

[Stephen Kelly]

Brad King wrote:

> On 10/23/2013 05:59 PM, Stephen Kelly wrote:
>>> CMAKE_CXX_COMPILER is always set to the proper full path these days,
>>> even in the IDE generators, so I wonder if we could actually run it
>>> against the header file to detect the features available for the
>>> current compiler instead of hard-coding a table in the platform
>>> information files.  Then the checks would all be done in one place
>>> via the preprocessor and __has_feature if available.
>> 
>> I've implemented this and merged it to next for dashboard testing.
> 
> Please see the hythloth.kitware Linux64-gnu build entry on the
> dashboard for some documentation errors reported by sphinx-build.
> 
> Also when you run the compiler you need to capture all stdout/stderr
> so that it never leaks through to the user-visible cmake configuration
> output.  The RunCMake.* tests that failed last night were mostly due
> to compilers writing to stderr even when nothing is wrong and therefore
> messing with the expected output matching.

Should be all fixed now.

Thanks,

Steve.