
The shim currently does not handle `--sysroot=` and `-isysroot=` flags correctly. For example, the LLVM build passes `--sysroot=.`, and this is incorrectly parsed by the shim.
The shim currently does not handle `--sysroot=` and `-isysroot=` flags correctly. For example, the LLVM build passes `--sysroot=.`, and this is incorrectly parsed by the shim.