Summary: "run the platform C compiler",
			Args:    "args...",
		},
		func(s *script.State, args ...string) (script.WaitFunc, error) {
			b := work.NewBuilder(s.Getwd())
			wait, err := cmdExec.Run(s, append(b.GccCmd(".", ""), args...)...)
			if err != nil {
				return wait, err
			}
			waitAndClean := func(s *script.State) (stdout, stderr string, err error) {
				stdout, stderr, err = wait(s)

	if err != nil {
		// Should not happen - b.CFlags was given an empty package.
		fmt.Fprintf(os.Stderr, "go: invalid cflags: %v\n", err)
		return nil
	}
	cmd := b.GccCmd(".", "")

	join := func(s []string) string {
		q, err := quoted.Join(s)
		if err != nil {
			return strings.Join(s, " ")
		}
		return q
	}

	ret := []cfg.EnvVar{

	// in debug mode and don't report the error.
	if cfg.BuildN || cfg.BuildX {
		sh.reportCmd("", "", out, nil)
	}
	return err
}

// GccCmd returns a gcc command line prefix
// defaultCC is defined in zdefaultcc.go, written by cmd/dist.
func (b *Builder) GccCmd(incdir, workdir string) []string {
	return b.compilerCmd(b.ccExe(), incdir, workdir)
}

// GxxCmd returns a g++ command line prefix

		}
	case "loong64":
		return []string{"-mabi=lp64d"}
	}
	return nil
}

func gccTmp() string {
	return *objDir + "_cgo_.o"
}

// gccCmd returns the gcc command line to use for compiling
// the input.
func (p *Package) gccCmd() []string {
	c := append(gccBaseCmd,
		"-w",          // no warnings
		"-Wno-error",  // warnings are not errors
		"-o"+gccTmp(), // write object to tmp

				return
			}

			for c, args := range rt.testCases {

				cCmd := getCmd(rt.cmd, c)
				if cCmd == nil {
					t.Errorf("cmd didn't have %s subcommand\n", c)
					continue
				}

				// Test passing argument set
				err := cCmd.Args(cCmd, args.pass)
				if err != nil {
					t.Errorf("command %s should validate the args: %v\n %v", cCmd.Name(), args.pass, err)
				}

				// Test failing argument set

			t.Fatal(err)
		}
		return ret
	}

	cDefFile := makeFile(cdir, "cdef.c", cDefSource)
	cRefFile := makeFile(cdir, "cref.c", cRefSource)

	ccCmd := cCompilerCmd(t)

	cCompile := func(arg, base, src string) string {
		out := filepath.Join(cdir, base)
		run := append(ccCmd, arg, "-o", out, src)
		output, err := exec.Command(run[0], run[1:]...).CombinedOutput()
		if err != nil {
			t.Log(run)
			t.Logf("%s", output)