[CMake] C++11 flag not being added

[Matthew S Wallace]

Thanks, setting the global variable solved my issue.

-Matt

> On Oct 13, 2015, at 10:46 AM, Johannes Zarl-Zierl <johannes.zarl-zierl at jku.at> wrote:
> 
> Hi,
> 
> CXX_STANDARD is a target property, not a global one. You can either set 
> CXX_STANDARD for every target that needs it, or set it globally by changing 
> the default value.
> 
> You can do the latter by setting the variable CMAKE_CXX_STANDARD  before 
> defining any target that depends on it:
> 
> set(CMAKE_CXX_STANDARD 11)
> 
> HTH,
>  Johannes
> 
> On Tuesday 13 October 2015 10:22:36 Matthew S Wallace wrote:
>> I have the following two lines in my CMakeLists.txt
>> 
>> set_property(GLOBAL PROPERTY CXX_STANDARD 11)
>> set_property(GLOBAL PROPERTY CXX_STANDARD_REQUIRED)
>> 
>> However when compiling some of my source files, the -std=c++11 flag is not
>> added.
>> 
>> Just for good measure I added:
>> target_compile_features(my_target PRIVATE cxx_strong_enums) to the target
>> that was having the problem.
>> 
>> Not sure if it matters, but in this case the compile error I’m getting is
>> complaining because I’m referencing a fully scoped enum.  If I explicitly
>> include -std=c++11 in my compile flags, everything works.
>> 
>> I’m thinking I’m probably just misunderstanding how CXX_STANDARD works, but
>> any help would be appreciated.
>> 
>> -Matt
> 
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