[Development] Removing the -c++11 option from configure

[Ziller Eike]

> On Mar 21, 2015, at 7:40 PM, Thiago Macieira <thiago.macieira at intel.com> wrote:
> 
> We'd like to make Qt build unconditionally with the latest version of the C++ 
> standard that is supported by the compiler. That implies removing the -c++11 
> option so that the -no-c++11 option goes away too.
> 
> Possible drawbacks:
> - Inability to test non-C++11 codepaths in the CI
>   => We can add a hidden option for the CI
> 


> - OS X support without libc++ may go away
>   => I need more information on this

I think the only problem would be, if you compiled on 10.7+ and expected it to run on 10.6, which we no longer support since 5.4 anyhow, if I remember correctly.

> Advantage:
> - Will turn on C++14 for recent GCC and Clang
> 
> Anything I missed? Opinions?
> 
> -- 
> Thiago Macieira - thiago.macieira (AT) intel.com
>  Software Architect - Intel Open Source Technology Center
> 
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-- 
Eike Ziller, Senior Software Engineer - The Qt Company GmbH
 
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