--- a/src/go/internal/gcimporter/exportdata.go 2016-02-17 12:35:17.000000000 -0800 +++ b/src/go/internal/gcimporter/exportdata.go 2016-03-31 15:54:24.274398819 -0700 @@ -57,7 +57,7 @@ func FindExportData(r *bufio.Reader) (hdr string, err error) { } // First entry should be __.PKGDEF. - if name != "__.PKGDEF" { + if name != "__.PKGDEF" && name != "__.PKGDEF/" { err = fmt.Errorf("go archive is missing __.PKGDEF") return }