diff --git a/Source/cmGeneratorTarget.cxx b/Source/cmGeneratorTarget.cxx
index 011fc6cc54..90cca1be75 100644
--- a/Source/cmGeneratorTarget.cxx
+++ b/Source/cmGeneratorTarget.cxx
@@ -692,3 +692,14 @@ void cmGeneratorTarget::GenerateTargetManifest(const char* config) const
     gg->AddToManifest(config? config:"", f);
     }
 }
+
+bool cmStrictTargetComparison::operator()(cmTarget *t1, cmTarget *t2) const
+{
+  int nameResult = strcmp(t1->GetName(), t2->GetName());
+  if (nameResult == 0)
+    {
+    return strcmp(t1->GetMakefile()->GetStartDirectory(),
+                  t2->GetMakefile()->GetStartDirectory()) < 0;
+    }
+  return nameResult < 0;
+}
diff --git a/Source/cmGeneratorTarget.h b/Source/cmGeneratorTarget.h
index 69d1bb2f16..d2b65b28ec 100644
--- a/Source/cmGeneratorTarget.h
+++ b/Source/cmGeneratorTarget.h
@@ -100,6 +100,12 @@ private:
   void operator=(cmGeneratorTarget const&);
 };
 
-typedef std::map<cmTarget*, cmGeneratorTarget*> cmGeneratorTargetsType;
+struct cmStrictTargetComparison {
+  bool operator()(cmTarget *t1, cmTarget *t2) const;
+};
+
+typedef std::map<cmTarget*,
+                 cmGeneratorTarget*,
+                 cmStrictTargetComparison> cmGeneratorTargetsType;
 
 #endif