Heads up: even though it tries to overrideCC with clang, our rocm-runtime expression still uses gcc for a ton of stuff.

Try changing default-gcc-version in pkgs/top-level/all-packages.nix to 13 and you'll see the breakage. I'm about to merge

• default-gcc-version: 12 -> 13 if !isDarwin && !isAarch64 #268097

which does this, and it's going to break rocmPackages. I tried to fix it, but the problem is very deep: you guys think you're using only clang, but in fact you're not.

Wanted to give you a heads-up.

cc: @lovesegfault @Madouura @Flakebi