[cmake-developers] CXX_STANDARD and linking (was: C++11 support broken for SolarisStudio 12.4)

[CHEVRIER, Marc]

Hi,

Bootstrapping CMake with the flags you specify and SOlarisStudio 12.4 enable to generate a usable Cmake but some tests are failing with error related to CXX standard.
For example, test 32, CompileFeatures generates error:
32: CMake Error: Error required internal CMake variable not set, cmake may be not be built correctly.
32: Missing variable is:
32: CMAKE_CXX98_EXTENSION_COMPILE_OPTION

In the meantime, I am using SolarisStudio 12.2 for CMake bootstrapping.

Anyway, the main problem is the fact that, currently, C++ standard handling is not usable on Solaris. Do have any plan to fix this problem anytime soon?


After this problem fixed, I hope CMake bootstrapping will be solved as well…

Thank you for your help.

Marc


On 25/09/15 17:24, "Brad King" <brad.king at kitware.com> wrote:

>Steve,
>
>On 09/25/2015 03:58 AM, CHEVRIER, Marc wrote:
>> * If I add option -std=c++11 in the file .../Test.dir/link.txt,
>>   link is successful 
>
>Compiling with a -std= flag should link with such a flag too.
>Flags like this are why CMake has always passed CMAKE_CXX_FLAGS
>to the C++ compiler when using it to drive the linker.  This does
>not appear to be the case anywhere right now when the flag is added
>via CXX_STANDARD.
>
>Marc, meanwhile you should be able to bootstrap CMake with
>
> bootstrap ... -- -DCMake_NO_C_STANDARD=1 -DCMake_NO_CXX_STANDARD
>
>to skip trying to use any -std= flags.
>
>-Brad
>