diff --git a/cc/linkable.go b/cc/linkable.go
index ab5a552..58919a0 100644
--- a/cc/linkable.go
+++ b/cc/linkable.go
@@ -106,6 +106,8 @@
 	IsVndkExt() bool
 	IsVndkPrivate() bool
 	HasVendorVariant() bool
+	HasProductVariant() bool
+	HasNonSystemVariants() bool
 	InProduct() bool
 
 	SdkVersion() string