[Bug libstdc++/108391] '::operator delete(void*, size_t)' was not found when clang compiled libstdc++

[jincikang at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108391

--- Comment #8 from jinci kang <jincikang at gmail dot com> ---
(In reply to Jakub Jelinek from comment #7)
> Grep shows that clang predefines that macro if -fsized-deallocation is used.
> But why that option doesn't default to on for C++14 is hard to understand.

Clang has a problem with ABI breaking.
https://reviews.llvm.org/D8467