[libcxx-dev] [llvm-dev] Shipping custom libc++ on MacOS

[Isuru Fernando via libcxx-dev]

Hi Ken,

I'm in the same situation as you in conda package manager.
Note that with libcxx 12, https://reviews.llvm.org/D91517 was merged where
codecvt with char8_t is added in the middle of a structure instead of at
the end.
This means that you have to be careful that all applications link to the
custom libc++.

For libcxx developers,
While we are discussing how to avoid ODR violations, is it possible to move
the two lines at
https://github.com/llvm/llvm-project/blob/llvmorg-12.0.1/libcxx/src/locale.cpp#L210-L211

to the bottom to avoid segfaults resulting from this?

Thanks,
Isuru
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