jyknight added a comment. Since this is only adding a new export to libc++, not changing/breaking existing ones, I don't think it should be grouped with the ABI-breaking changes in v2.
The usual promise is that upgrading libc++.so.1 will not break apps compiled against an older set of headers, not that you're able to compile against a new set of headers and then run on an old libc++.so.1. That is, even if the use of the new export is put under a #ifdef, it seems like it ought to default "on". https://reviews.llvm.org/D27387 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
