return err
			}
			if err := sh.Mkdir(filepath.Dir(afterA)); err != nil {
				return err
			}
			if err := sh.Symlink(afterA, beforeA); err != nil {
				return err
			}
		case "packageshlib":
			return fmt.Errorf("gccgo -importcfg does not support shared libraries")
		}
	}
	return nil
}

func (tools gccgoToolchain) asm(b *Builder, a *Action, sfiles []string) ([]string, error) {

			// we must also put the full action ID into the binary's action ID hash.
			if p1.Name == "main" {
				fmt.Fprintf(h, "packagemain %s\n", a1.buildID)
			}
			if p1.Shlib != "" {
				fmt.Fprintf(h, "packageshlib %s=%s\n", p1.ImportPath, contentID(b.buildID(p1.Shlib)))
			}
		}
	}

	return h.Sum()
}

// printLinkerConfig prints the linker config into the hash h,

}

func errorexit() {
	exitIfErrors()
	Exit(0)
}

func loadinternal(ctxt *Link, name string) *sym.Library {
	zerofp := goobj.FingerprintType{}
	if ctxt.linkShared && ctxt.PackageShlib != nil {
		if shlib := ctxt.PackageShlib[name]; shlib != "" {
			return addlibpath(ctxt, "internal", "internal", "", name, shlib, zerofp)
		}
	}
	if ctxt.PackageFile != nil {
		if pname := ctxt.PackageFile[name]; pname != "" {