Supported Compilers / C++11 Support in KF5

[Michael Pyne]

On Mon, July 22, 2013 08:38:12 Johannes Sixt wrote:
> Am 7/21/2013 13:52, schrieb Rolf Eike Beer:
> > Explicit virtual overrides require g++ 4.7:
> > 
> > http://gcc.gnu.org/projects/cxx0x.html
> > 
> > This is trivially to work around by a CMake time check and then just
> > define
> > override to empty.
> 
> Not so. 'override' is a legal identifier, not a pure keyword. By defining
> it away, you break existing code that uses the name for something else.

That's a great point (something I just came across in Stroustroup's 4th 
Edition of TC++PL the other day).

'override' and 'final' are both what are described as "contextual keywords" 
due to backward compatibility concerns.

This means it's not safe to use pre-processor macros to expand either of those 
to be empty as they can be used in normal code sections (even though that's 
probably a bad idea at this point).

Regards,
 - Michael Pyne
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