diff --git a/lib/MC/MCMachOStreamer.cpp b/lib/MC/MCMachOStreamer.cpp
index 545f8d0..143793c 100644
--- a/lib/MC/MCMachOStreamer.cpp
+++ b/lib/MC/MCMachOStreamer.cpp
@@ -46,13 +46,9 @@
 
 private:
   MCAssembler Assembler;
-
   MCCodeEmitter *Emitter;
-
   MCSectionData *CurSectionData;
-
   DenseMap<const MCSection*, MCSectionData*> SectionMap;
-  
   DenseMap<const MCSymbol*, MCSymbolData*> SymbolMap;
 
 private:
@@ -134,6 +130,9 @@
                             unsigned Size = 0, unsigned ByteAlignment = 0);
   virtual void EmitBytes(StringRef Data, unsigned AddrSpace);
   virtual void EmitValue(const MCExpr *Value, unsigned Size,unsigned AddrSpace);
+  virtual void EmitGPRel32Value(const MCExpr *Value) {
+    assert(0 && "macho doesn't support this directive");
+  }
   virtual void EmitValueToAlignment(unsigned ByteAlignment, int64_t Value = 0,
                                     unsigned ValueSize = 1,
                                     unsigned MaxBytesToEmit = 0);