4 files changed, 6 insertions, 5 deletions
diff --git a/mteval/external_scorer.h b/mteval/external_scorer.h
index a28fb920..85535655 100644
--- a/mteval/external_scorer.h
+++ b/mteval/external_scorer.h
@@ -24,7 +24,8 @@ class ScoreServer {
   int c2p[2];
 };
 
-struct ScoreServerManager {
+class ScoreServerManager {
+ public:
   static ScoreServer* Instance(const std::string& score_type);
  private:
   static std::map<std::string, boost::shared_ptr<ScoreServer> > servers_;
diff --git a/mteval/ns_ext.cc b/mteval/ns_ext.cc
index 956708af..1e7e2bc1 100644
--- a/mteval/ns_ext.cc
+++ b/mteval/ns_ext.cc
@@ -118,7 +118,7 @@ void ExternalMetric::ComputeSufficientStatistics(const std::vector<WordID>& hyp,
 }
 
 float ExternalMetric::ComputeScore(const SufficientStats& stats) const {
-  eval_server->ComputeScore(stats.fields);
+  return eval_server->ComputeScore(stats.fields);
 }
 
 ExternalMetric::ExternalMetric(const string& metric_name, const std::string& command) :
diff --git a/mteval/ns_ter.cc b/mteval/ns_ter.cc
index 680fb7b4..00b6eb01 100644
--- a/mteval/ns_ter.cc
+++ b/mteval/ns_ter.cc
@@ -298,7 +298,7 @@ class TERScorerImpl {
   }
 
   bool CalculateBestShift(const vector<WordID>& cur,
-                          const vector<WordID>& hyp,
+                          const vector<WordID>& /*hyp*/,
                           float curerr,
                           const vector<TransType>& path,
                           vector<WordID>* new_hyp,
diff --git a/mteval/scorer.h b/mteval/scorer.h
index bb1e89ae..8d986612 100644
--- a/mteval/scorer.h
+++ b/mteval/scorer.h
@@ -103,7 +103,7 @@ class DocScorer {
 
   virtual int size() const { return scorers_.size(); }
   virtual ScorerP operator[](size_t i) const { return scorers_[i]; }
-  virtual void update(const std::string& ref) {}
+  virtual void update(const std::string& /*ref*/) {}
  private:
   std::vector<ScorerP> scorers_;
 };
@@ -124,7 +124,7 @@ class DocStreamScorer : public DocScorer {
 		{
 			Init(type,ref_files,src_file,verbose);
 		}
-		ScorerP operator[](size_t i) const { return scorer; }
+		ScorerP operator[](size_t /*i*/) const { return scorer; }
 		int size() const { return 1; }
 		void update(const std::string& ref);
 	private: