Supported Compilers / C++11 Support in KF5

[Rolf Eike Beer]

Am Sonntag, 21. Juli 2013, 14:11:07 schrieb Volker Krause:
> On Sunday 21 July 2013 13:52:06 Rolf Eike Beer wrote:
> > Volker Krause wrote:
> > > - GCC >= 4.5
> > > 
> > > - override
> > 
> > Explicit virtual overrides require g++ 4.7:
> > 
> > http://gcc.gnu.org/projects/cxx0x.html
> 
> you are right, it's also what all other sources referenced in
> http://article.gmane.org/gmane.comp.kde.devel.frameworks/3652 say, no idea
> how that slipped in then, sorry.
> 
> > This is trivially to work around by a CMake time check and then just
> > define
> > override to empty.
> 
> sure, for KF5 this is not really a problem since Qt provides corresponding
> macros already. I was hoping for real unconditional usage though, since
> Akonadi will need to stay backward-compatible with Qt4 for a while longer,
> and I wanted to avoid to have to basically copy qcompilerdetection.h for
> that. Not to mention that "override" looks much nicer than
> "Q_DECL_OVERRIDE" ;)

I totally agree with that. As I said: detection of this is trivial at CMake 
time, maybe I get my C++ feature detection package ready even to be included 
in 2.8.12, and if not the stuff can easily be extracted. And afterwards you 
just add -Doverride= to CMAKE_CXX_FLAGS and everything is fine.

Eike
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