--- ./libgo/go/cmd/go/build.go.ORIGIN	2017-09-29 10:42:12 -0500
+++ ./libgo/go/cmd/go/build.go	2017-09-29 10:43:48 -0500
@@ -3311,6 +3311,10 @@
 		return []string{"-mabi=64"}
 	case "mips", "mipsle":
 		return []string{"-mabi=32", "-march=mips32"}
+	case "ppc64":
+		if goos == "aix" {
+			return []string{"-maix64"}
+		}
 	}
 	return nil
 }