diff --git a/llvm/lib/MC/MCNullStreamer.cpp b/llvm/lib/MC/MCNullStreamer.cpp
--- a/llvm/lib/MC/MCNullStreamer.cpp
+++ b/llvm/lib/MC/MCNullStreamer.cpp
@@ -40,6 +40,9 @@
     void EmitCOFFSymbolStorageClass(int StorageClass) override {}
     void EmitCOFFSymbolType(int Type) override {}
     void EndCOFFSymbolDef() override {}
+    void
+    emitXCOFFSymbolLinkageWithVisibility(MCSymbol *Symbol, MCSymbolAttr Linkage,
+                                         MCSymbolAttr Visibility) override {}
   };
 
 }