if noOpt {
		goCmd = append(goCmd, "-tags=noopt")
	}
	goCmd = appendCompilerFlags(goCmd)
	if vflag > 0 {
		goCmd = append(goCmd, "-v")
	}

	// Force only one process at a time on vx32 emulation.
	if gohostos == "plan9" && os.Getenv("sysname") == "vx32" {
		goCmd = append(goCmd, "-p=1")
	}

	runEnv(workdir, ShowOutput|CheckExit, env, append(goCmd, args...)...)
}

		rel, err := filepath.Rel(base.Cwd(), dir)
		if err != nil {
			rel = dir
		}
		cdCmd := ""
		if rel != "." {
			cdCmd = fmt.Sprintf("cd %s && ", rel)
		}
		base.Fatalf("go: cannot find main module, but found %s in %s\n\tto create a module there, run:\n\t%sgo mod init", name, dir, cdCmd)
	}
	base.Fatal(ErrNoModRoot)
}

		}
	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

				"audio/vnd.rhetorex.32kadpcm",
				"audio/vnd.sealedmedia.softseal.mpeg",
				"audio/vnd.vmx.cvsd",
				"audio/vorbis-config",
				"audio/x-aac",
				"audio/x-adbcm",
				"audio/x-aiff",
				"audio/x-dec-basic",
				"audio/x-dec-adbcm",
				"audio/x-flac",
				"audio/x-mod",
				"audio/x-mpegurl",
				"audio/x-ms-wax",
				"audio/x-ms-wma",
				"audio/x-pn-realaudio",

			d := filepath.Dir(parent)
			if len(d) >= len(parent) {
				return errNoModules // reached top of file system, no go.mod
			}
			parent = d
		}
	}

	goCmd := filepath.Join(ctxt.GOROOT, "bin", "go")