Warning during compiler build: Compiler version doesn't include clang or GCC

[RalfJung]

Running ./x.py check compiler shows a warning:

warning: rustc_llvm@0.0.0: Compiler version doesn't include clang or GCC: "c++" "--version"

I think this must have started pretty recently.

FTR, c++ --version shows

$ c++ --version
c++ (Debian 13.2.0-13) 13.2.0
Copyright (C) 2023 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

[RalfJung]

This is probably rust-lang/cc-rs#958.

[workingjubilee]

cc @NobodyXu What would be your recommendation?

[workingjubilee]

Oh, I see rust-lang/cc-rs#1000 now.