diff -urN a/embedding/browser/gtk/src/EmbedPrivate.cpp b/embedding/browser/gtk/src/EmbedPrivate.cpp
--- a/embedding/browser/gtk/src/EmbedPrivate.cpp	2010-12-03 16:48:03.000000000 +0100
+++ b/embedding/browser/gtk/src/EmbedPrivate.cpp	2011-03-02 23:01:19.303736917 +0100
@@ -104,6 +104,7 @@
 class GTKEmbedDirectoryProvider : public nsIDirectoryServiceProvider2
 {
 public:
+  GTKEmbedDirectoryProvider() {}
   NS_DECL_ISUPPORTS_INHERITED
   NS_DECL_NSIDIRECTORYSERVICEPROVIDER
   NS_DECL_NSIDIRECTORYSERVICEPROVIDER2
diff -urN a/gfx/ots/src/os2.cc b/gfx/ots/src/os2.cc
--- a/gfx/ots/src/os2.cc	2010-12-03 16:48:03.000000000 +0100
+++ b/gfx/ots/src/os2.cc	2011-03-02 23:01:48.090736831 +0100
@@ -6,6 +6,8 @@
 
 #include "head.h"
 
+#include<cstddef>
+
 // OS/2 - OS/2 and Windows Metrics
 // http://www.microsoft.com/opentype/otspec/os2.htm
 
diff -urN a/intl/unicharutil/util/nsUnicharUtils.h b/intl/unicharutil/util/nsUnicharUtils.h
--- a/intl/unicharutil/util/nsUnicharUtils.h	2010-12-03 16:48:04.000000000 +0100
+++ b/intl/unicharutil/util/nsUnicharUtils.h	2011-03-02 23:02:24.924737069 +0100
@@ -72,6 +72,7 @@
 class nsCaseInsensitiveStringComparator : public nsStringComparator
 {
 public:
+  nsCaseInsensitiveStringComparator() {}
   virtual int operator() (const PRUnichar*,
                           const PRUnichar*,
                           PRUint32 aLength) const;
diff -urN a/toolkit/xre/nsAppRunner.cpp b/toolkit/xre/nsAppRunner.cpp
--- a/toolkit/xre/nsAppRunner.cpp	2010-12-03 16:49:13.000000000 +0100
+++ b/toolkit/xre/nsAppRunner.cpp	2011-03-02 23:04:29.478736918 +0100
@@ -640,6 +640,7 @@
 
 {
 public:
+  nsXULAppInfo() {}
   NS_DECL_ISUPPORTS_INHERITED
   NS_DECL_NSIXULAPPINFO
   NS_DECL_NSIXULRUNTIME
diff -urN a/xpcom/base/nsDebugImpl.h b/xpcom/base/nsDebugImpl.h
--- a/xpcom/base/nsDebugImpl.h	2010-12-03 16:49:19.000000000 +0100
+++ b/xpcom/base/nsDebugImpl.h	2011-03-02 23:05:40.346736957 +0100
@@ -40,6 +40,7 @@
 class nsDebugImpl : public nsIDebug2
 {
 public:
+    nsDebugImpl() {}
     NS_DECL_ISUPPORTS
     NS_DECL_NSIDEBUG
     NS_DECL_NSIDEBUG2
diff -urN a/xpcom/base/nsTraceRefcntImpl.h b/xpcom/base/nsTraceRefcntImpl.h
--- a/xpcom/base/nsTraceRefcntImpl.h	2010-12-03 16:49:19.000000000 +0100
+++ b/xpcom/base/nsTraceRefcntImpl.h	2011-03-02 23:07:18.919953554 +0100
@@ -44,6 +44,7 @@
 class nsTraceRefcntImpl : public nsITraceRefcnt
 {
 public:
+  nsTraceRefcntImpl() {}
   NS_DECL_ISUPPORTS
   NS_DECL_NSITRACEREFCNT
 
diff -urN a/xpcom/glue/nsEnumeratorUtils.cpp b/xpcom/glue/nsEnumeratorUtils.cpp
--- a/xpcom/glue/nsEnumeratorUtils.cpp	2010-12-03 16:49:19.000000000 +0100
+++ b/xpcom/glue/nsEnumeratorUtils.cpp	2011-03-02 23:08:03.783953546 +0100
@@ -52,6 +52,7 @@
                             public nsIStringEnumerator
 {
 public:
+    EmptyEnumeratorImpl() {}
     // nsISupports interface
     NS_DECL_ISUPPORTS_INHERITED  // not really inherited, but no mRefCnt
 
diff -urN a/xpcom/io/nsUnicharInputStream.h b/xpcom/io/nsUnicharInputStream.h
--- a/xpcom/io/nsUnicharInputStream.h	2010-12-03 16:49:19.000000000 +0100
+++ b/xpcom/io/nsUnicharInputStream.h	2011-03-02 23:08:51.863953556 +0100
@@ -51,6 +51,7 @@
   private nsISimpleUnicharStreamFactory
 {
 public:
+  nsSimpleUnicharStreamFactory() {}
   NS_DECL_ISUPPORTS_INHERITED
   NS_DECL_NSIFACTORY
   NS_DECL_NSISIMPLEUNICHARSTREAMFACTORY