Op 21 mrt. 2013 22:31 schreef "K. Frank" <kfrank2...@gmail.com> het volgende: > > Hi Thiago! > > (I've taken the liberty of cross-posting this back to the mingw-w64-public > list.) > > On Thu, Mar 21, 2013 at 5:07 PM, Thiago Macieira > <thiago.macie...@intel.com> wrote: > > On quinta-feira, 21 de março de 2013 16.52.29, K. Frank wrote: > >> Hello Lists! > >> > >> Should I expect to be able to build Qt with "-std=c++11" using mingw-w64? > > > > No. The Windows headers that are shipped with MinGW aren't standards- > > compliant. You need to compile with -std=gnu++11.
I wonder what problems you've been running into... Although I haven't used many windows headers directly, I guess the c++ standard lib and certainly boost includes a lot of them and I haven't met any show stopping problems with -std=c++11. > > Thank you. I will bear that in mind. I don't see any problem with that. > > > Qt automatically switches to that mode in the modules that require it. > > > >> As I understand it, using "-std=c++11" causes abi breakage, so to do this, I > >> will have to recompile the various libraries I use. > > > > Not with Qt. Qt has the very same ABI, whether you compile it with C++11 or > > C++98. > > I guess I should take your word for it. But I'm a little confused, so let me > ask for some clarification. How does Qt control the abi produced by the > compiler? I was under the distinct impression that "-std=???11" caused > significant abi breakage, that this was recognized as an issue, but, I > guess, that the gcc folks felt that it was worth it for some reason. > > How could Qt manage to dodge that bullet? Or am I misunderstanding > the issue? Different ABI is only problematic if you pass e.g. std::string objects across different module ABI boundaries. I suppose Qt avoids using the standard library as it provides its own implementations of most if not all standard library functionality. Ruben > > >> Has anyone built Qt with either gcc 4.7 or 4.8 with "-std=c++11" activated? > > > > I know someone has, since there have been fixes for MinGW and C++11 mode coming > > in. > > > > I've been using C++11 and C++0x before that for a couple of years on Linux. > > Since GCC 4.4. > > Excellent. > > > Thiago Macieira - thiago.macieira (AT) intel.com > > Software Architect - Intel Open Source Technology Center > > > Thank you for the reassurance. > > > K. Frank > > ------------------------------------------------------------------------------ > Everyone hates slow websites. So do we. > Make your web apps faster with AppDynamics > Download AppDynamics Lite for free today: > http://p.sf.net/sfu/appdyn_d2d_mar > _______________________________________________ > Mingw-w64-public mailing list > mingw-w64-pub...@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/mingw-w64-public
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