On Fri, 6 Jan 2012, Jason Merrill wrote: > For the moment, only the additions are enabled by default; the changes require > -fabi-version=6 or =0. Other changes since -fabi-version=2 have been fairly > limited in scope, not affecting very much code. But this is a big change, > that will require recompilation of pretty much any C++11 code when it happens. > The question is, should it happen now, or wait until a later flag day when we > make other changes as well?
"other changes" might also include moving to libstdc++.so.7 - if there's a such an incompatible library ABI change coming up, it would make sense to do the compiler ABI changes at the same time. -- Joseph S. Myers jos...@codesourcery.com