}

				xmkdirall(dst)
				if path == "cmd/cgo" {
					// Write to src because we need the file both for bootstrap
					// and for later in the main build.
					mkzdefaultcc("", pathf("%s/zdefaultcc.go", src))
					mkzdefaultcc("", pathf("%s/zdefaultcc.go", dst))
				}
				return nil
			}

			for _, pre := range ignorePrefixes {
				if strings.HasPrefix(name, pre) {
					return nil
				}
			}

		"bin/**",
		"pkg/**",

		// Generated during cmd/dist. See ../dist/build.go:/gentab.
		"src/cmd/go/internal/cfg/zdefaultcc.go",
		"src/go/build/zcgo.go",
		"src/runtime/internal/sys/zversion.go",
		"src/time/tzdata/zzipdata.go",

		// Generated during cmd/dist by bootstrapBuildTools.
		"src/cmd/cgo/zdefaultcc.go",
		"src/cmd/internal/objabi/zbootstrap.go",
		"src/internal/buildcfg/zbootstrap.go",