1 files changed, 6 insertions, 3 deletions
diff --git a/src/google/protobuf/descriptor_database.h b/src/google/protobuf/descriptor_database.h
index f32b1db..934e402 100644
--- a/src/google/protobuf/descriptor_database.h
+++ b/src/google/protobuf/descriptor_database.h
@@ -1,6 +1,6 @@
 // Protocol Buffers - Google's data interchange format
 // Copyright 2008 Google Inc.  All rights reserved.
-// http://code.google.com/p/protobuf/
+// https://developers.google.com/protocol-buffers/
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
@@ -41,6 +41,7 @@
 #include <string>
 #include <utility>
 #include <vector>
+#include <google/protobuf/stubs/common.h>
 #include <google/protobuf/descriptor.h>
 
 namespace google {
@@ -95,11 +96,12 @@ class LIBPROTOBUF_EXPORT DescriptorDatabase {
   //
   // This method has a default implementation that always returns
   // false.
-  virtual bool FindAllExtensionNumbers(const string& extendee_type,
-                                       vector<int>* output) {
+  virtual bool FindAllExtensionNumbers(const string& /* extendee_type */,
+                                       vector<int>* /* output */) {
     return false;
   }
 
+
  private:
   GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(DescriptorDatabase);
 };
@@ -355,6 +357,7 @@ class LIBPROTOBUF_EXPORT MergedDescriptorDatabase : public DescriptorDatabase {
   bool FindAllExtensionNumbers(const string& extendee_type,
                                vector<int>* output);
 
+
  private:
   vector<DescriptorDatabase*> sources_;
   GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(MergedDescriptorDatabase);