'LLVM.exe'); \
    Start-Process -FilePath \"C:\Program Files\7-Zip\7z.exe\" -ArgumentList 'x LLVM.exe -oC:\tools\LLVM' -Wait; \
    $env:PATH = [Environment]::GetEnvironmentVariable('PATH', 'Machine') + ';C:\tools\LLVM\bin'; \
    [Environment]::SetEnvironmentVariable('PATH', $env:PATH, 'Machine');

# Install MSYS2, and add some extra tools.
RUN (New-Object Net.WebClient).DownloadFile( \