golang patch to enable external linking on ppc64

external_link_ppc64.patch

diff --git a/src/cmd/link/internal/ld/config.go b/src/cmd/link/internal/ld/config.go
index 60b6491859..2d8f96408e 100644
--- a/src/cmd/link/internal/ld/config.go
+++ b/src/cmd/link/internal/ld/config.go
@@ -247,9 +247,6 @@ func determineLinkMode(ctxt *Link) {
                        }
                        ctxt.LinkMode = LinkInternal
                case "1":
-                       if objabi.GOARCH == "ppc64" {
-                               Exitf("external linking requested via GO_EXTLINK_ENABLED but not supported for %s/ppc64", objabi.GOOS)
-                       }
                        ctxt.LinkMode = LinkExternal
                default:
                        if needed, _ := mustLinkExternal(ctxt); needed {
@@ -261,17 +258,10 @@ func determineLinkMode(ctxt *Link) {
                        } else {
                                ctxt.LinkMode = LinkInternal
                        }
-                       if objabi.GOARCH == "ppc64" && ctxt.LinkMode == LinkExternal {
-                               Exitf("external linking is not supported for %s/ppc64", objabi.GOOS)
-                       }
                }
        case LinkInternal:
                if needed, reason := mustLinkExternal(ctxt); needed {
                        Exitf("internal linking requested but external linking required: %s", reason)
                }
-       case LinkExternal:
-               if objabi.GOARCH == "ppc64" {
-                       Exitf("external linking not supported for %s/ppc64", objabi.GOOS)
-               }
        }
 }