diff --git a/include/llvm/CodeGen/AntiDepBreaker.h b/include/llvm/CodeGen/AntiDepBreaker.h
index 7ed0c77e952..af45eb9b2f7 100644
--- a/include/llvm/CodeGen/AntiDepBreaker.h
+++ b/include/llvm/CodeGen/AntiDepBreaker.h
@@ -29,7 +29,7 @@ namespace llvm {
 /// anti-dependencies.
 class AntiDepBreaker {
 public:
-  virtual ~AntiDepBreaker() { };
+  virtual ~AntiDepBreaker();
 
   /// Start - Initialize anti-dep breaking for a new basic block.
   virtual void StartBlock(MachineBasicBlock *BB) =0;
diff --git a/lib/CodeGen/PostRASchedulerList.cpp b/lib/CodeGen/PostRASchedulerList.cpp
index 4ee97e79b5f..8fe20876bcc 100644
--- a/lib/CodeGen/PostRASchedulerList.cpp
+++ b/lib/CodeGen/PostRASchedulerList.cpp
@@ -24,6 +24,7 @@
 #include "ExactHazardRecognizer.h"
 #include "SimpleHazardRecognizer.h"
 #include "ScheduleDAGInstrs.h"
+#include "llvm/CodeGen/AntiDepBreaker.h"
 #include "llvm/CodeGen/Passes.h"
 #include "llvm/CodeGen/LatencyPriorityQueue.h"
 #include "llvm/CodeGen/SchedulerRegistry.h"
@@ -79,6 +80,8 @@ DebugMod("postra-sched-debugmod",
                       cl::desc("Debug control MBBs that are scheduled"),
                       cl::init(0), cl::Hidden);
 
+AntiDepBreaker::~AntiDepBreaker() { }
+
 namespace {
   class PostRAScheduler : public MachineFunctionPass {
     AliasAnalysis *AA;