[Development] Remove OSX 10.6 Build?

[Thiago Macieira]

On segunda-feira, 20 de janeiro de 2014 20:45:50, Olivier Goffart wrote:
> It is true that building on OSX 10.6 still require GCC 4.2 which is a bit
> old. If it is possible to build with clang and target OSX 10.6 that would
> be great.
> 
> We could revisit the supported compiler.
> Personally, this would be my list:
>  GCC 4.5 / clang 3.1 / MSVC 2010

Clang 3.1 on Linux? Or do you mean Clang-that-came-with-XCode 3.1? Or maybe 
Clang-that-came-with-XCode version closest to upstream Clang 3.1?

The version numbers on Mac have nothing to do with the upstream version. Right 
now, Clang is reporting to be version 5.0 (that's XCode 5.0). 

Clang on Linux is of minor interest to our users, since they're more likely to 
use what comes with their distros and those standardise on GCC

> That way we could start using C++11 feature in Qt: such as 'auto', lambda
> expressions, 'decltype', variadic macro, and more.
> 
> If not for Qt 5.3,  at least Qt 5.4.

That means dropping completely support for older compilers as well as 
commercial compilers from other OS that don't support those C++11 features 
yet. I don't think we can do that in 2014 yet. With luck, maybe by mid-2015 
(which would be Qt 5.6).

That said, you are allowed to write more efficient code and new features using 
those features. QUuid does that. I'm also using lambdas in QtCore:
	https://codereview.qt-project.org/74182

You just can't break the build if the feature isn't present. Not yet, anyway.

-- 
Thiago Macieira - thiago.macieira (AT) intel.com
  Software Architect - Intel Open Source Technology Center
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