[clang] [Clang] Take libstdc++ into account during GCC detection (PR #145056)

[Frederik Harwath via cfe-commits]

frederik-h wrote:

> > This looks quite good. I'm curious if others have any feedback.
> 
> No additional feedback from me, but this is far enough outside of my wheelhouse that I don't feel my LG should be enough to land it on.

Can anyone else help with a review (@jyknight, @tahonermann, ...)?

https://github.com/llvm/llvm-project/pull/145056