EricWF added a comment. I've spent some time testing this patch to see if it causes ABI problem. Here is what I did:
1. Add external instantiations of std::list into the libc++ dylib for the types used in the tests. 2. Compile `libcxx-old.dylib` with the external instantations but without this patch. 3. Apply this patch and compile `libcxx-new.dylib`. 4. For each test, `T`, in `std/containers/sequences/list` do the following: 1. Compile and link `T` against the patched headers and `libcxx-new.dylib`. Run `T` using `libcxx-old.dylib`. 2. Compile and link `T` against `the original headers and `libcxx-old.dylib`. Run `T` using `libcxx-new.dylib`. I didn't see any issues arise when doing this but that doesn't mean there are none. I'm going to ensure this method actually would catch a ABI breakage so I can have some more faith in the results. http://reviews.llvm.org/D12299 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits