[libc-commits] [libc] [libc] raise CMAKE_CXX_STANDARD to C++20 (PR #87020)

[Nick Desaulniers via libc-commits]

nickdesaulniers wrote:

@jyknight , thanks for speaking up and linking to that thread.  I'll trust your experience to say we should avoid having to redebug problems @jyknight has already observed.  Let's start by first revisiting our documented supported compiler versions.  I'll start a new PR/RFC for that.

Once we raise minimum compiler versions, then we can revisit raising the C++ language standard used for the project. Moving this to draft for now to help signal that it's on the back burner.

https://github.com/llvm/llvm-project/pull/87020