diff --git a/Source/cmLocalUnixMakefileGenerator3.cxx b/Source/cmLocalUnixMakefileGenerator3.cxx
index 27d631e38..3972b419f 100644
--- a/Source/cmLocalUnixMakefileGenerator3.cxx
+++ b/Source/cmLocalUnixMakefileGenerator3.cxx
@@ -173,7 +173,6 @@ void cmLocalUnixMakefileGenerator3::ComputeObjectFilenames(
 void cmLocalUnixMakefileGenerator3::
 GetLocalObjectFiles(std::map<std::string, LocalObjectInfo> &localObjectFiles)
 {
-  std::set<std::string> emitted;
   std::vector<cmGeneratorTarget*> targets = this->GetGeneratorTargets();
   for(std::vector<cmGeneratorTarget*>::iterator ti = targets.begin();
       ti != targets.end(); ++ti)