On 2017-11-3 05:39 , Ryan Schmidt wrote: > > On Nov 2, 2017, at 13:00, Joshua Root wrote: > >> The reason for the ABI incompatibilities is, AIUI, that before C++11 the >> C++ standard did not specify an ABI. So theoretically mixing libc++ and >> libstdc++ works just as well whether you are on Linux or macOS -- that >> is to say, if everything is a new enough version to be C++11 compliant >> and you use it in that mode, it should work. >> >> If, OTOH, you try any mix involving a pre-C++11 stdlib (like the system >> libstdc++ on macOS), it won't work. > > So what do you think about what the cxx11-1.1 portgroup is doing?
Which part? If you mean using the old ABI, I guess it makes some sense to maintain compatibility with the system libstdc++ on those platforms where it is the default. Not sure how many ports use C++11 but link with system libs that use C++, or with other ports that use C++ < 11. - Josh
