return CompilerUtil.castCompiler(createObjectiveCPCHCompiler());
        }
        if (WindowsResourceCompileSpec.class.isAssignableFrom(spec)) {
            return CompilerUtil.castCompiler(createWindowsResourceCompiler());
        }
        if (AssembleSpec.class.isAssignableFrom(spec)) {
            return CompilerUtil.castCompiler(createAssembler());
        }
        if (LinkerSpec.class.isAssignableFrom(spec)) {

        throw unavailableTool("Objective-C is not available on the Visual C++ toolchain");
    }

    @Override
    protected Compiler<WindowsResourceCompileSpec> createWindowsResourceCompiler() {
        CommandLineToolInvocationWorker commandLineTool = tool("Windows resource compiler", sdk.getResourceCompiler());
        String objectFileExtension = ".res";