[llvm-dev] Using C++14 code in LLVM

[Joerg Sonnenberger via llvm-dev]

On Tue, Oct 31, 2017 at 02:45:24PM -0700, Justin Bogner via llvm-dev wrote:
> We shouldn't make people bootstrap the compiler without a very good
> reason. I really don't want to be in the situation where you have to get
> clang 3.7 to bootstrap 5.0 to bootstrap 7.0 to bootstrap 9.0 in 2019.

That is even ignoring the case of using LLVM as a library. Mixing GCC
versions is painful and can create all kinds of ABI fun. LLVM is not
just a single binary named clang.

Joerg